./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 83ea03e3a970ed9a04e84a7095cded72c8faa028a8061c6de69ab7c540d420f5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:36:06,573 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:36:06,635 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-23 22:36:06,641 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:36:06,641 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:36:06,670 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:36:06,670 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:36:06,671 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:36:06,671 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:36:06,671 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:36:06,671 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:36:06,671 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:36:06,674 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:36:06,674 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:36:06,674 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:36:06,674 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:36:06,674 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:36:06,675 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:36:06,675 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:36:06,675 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:36:06,675 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:36:06,675 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:36:06,675 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:36:06,675 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:36:06,675 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 22:36:06,675 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 22:36:06,676 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:36:06,676 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:36:06,676 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:36:06,676 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:36:06,676 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:36:06,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:36:06,676 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:36:06,676 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:36:06,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:36:06,677 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:36:06,677 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:36:06,677 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:36:06,677 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:36:06,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:36:06,677 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:36:06,680 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:36:06,680 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:36:06,680 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:36:06,681 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:36:06,681 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:36:06,681 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:36:06,681 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:36:06,681 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:36:06,681 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:36:06,682 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83ea03e3a970ed9a04e84a7095cded72c8faa028a8061c6de69ab7c540d420f5 [2024-11-23 22:36:07,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:36:07,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:36:07,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:36:07,087 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:36:07,088 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:36:07,089 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound100.c [2024-11-23 22:36:10,227 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/data/959f9fb19/e0f173b444ae4f7289b2b4cafb930ba5/FLAG28b010fe3 [2024-11-23 22:36:10,537 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:36:10,541 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound100.c [2024-11-23 22:36:10,560 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/data/959f9fb19/e0f173b444ae4f7289b2b4cafb930ba5/FLAG28b010fe3 [2024-11-23 22:36:10,593 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/data/959f9fb19/e0f173b444ae4f7289b2b4cafb930ba5 [2024-11-23 22:36:10,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:36:10,598 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:36:10,601 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:36:10,602 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:36:10,611 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:36:10,612 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:36:10" (1/1) ... [2024-11-23 22:36:10,613 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3089cce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:10, skipping insertion in model container [2024-11-23 22:36:10,613 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:36:10" (1/1) ... [2024-11-23 22:36:10,638 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:36:10,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:36:10,877 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:36:10,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:36:10,939 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:36:10,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:10 WrapperNode [2024-11-23 22:36:10,940 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:36:10,941 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:36:10,942 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:36:10,942 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:36:10,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:10" (1/1) ... [2024-11-23 22:36:10,961 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:10" (1/1) ... [2024-11-23 22:36:10,998 INFO L138 Inliner]: procedures = 14, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 101 [2024-11-23 22:36:10,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:36:10,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:36:10,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:36:11,000 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:36:11,011 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:10" (1/1) ... [2024-11-23 22:36:11,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:10" (1/1) ... [2024-11-23 22:36:11,013 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:10" (1/1) ... [2024-11-23 22:36:11,028 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-23 22:36:11,029 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:10" (1/1) ... [2024-11-23 22:36:11,029 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:10" (1/1) ... [2024-11-23 22:36:11,033 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:10" (1/1) ... [2024-11-23 22:36:11,034 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:10" (1/1) ... [2024-11-23 22:36:11,038 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:10" (1/1) ... [2024-11-23 22:36:11,039 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:10" (1/1) ... [2024-11-23 22:36:11,040 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:10" (1/1) ... [2024-11-23 22:36:11,042 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:36:11,044 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:36:11,044 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:36:11,044 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:36:11,045 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:10" (1/1) ... [2024-11-23 22:36:11,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:36:11,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:11,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:36:11,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:36:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:36:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 22:36:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 22:36:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:36:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:36:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-23 22:36:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-23 22:36:11,191 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:36:11,194 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:36:11,687 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2024-11-23 22:36:11,688 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:36:11,706 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:36:11,707 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:36:11,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:36:11 BoogieIcfgContainer [2024-11-23 22:36:11,708 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:36:11,710 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:36:11,711 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:36:11,716 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:36:11,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:36:10" (1/3) ... [2024-11-23 22:36:11,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b96136c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:36:11, skipping insertion in model container [2024-11-23 22:36:11,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:10" (2/3) ... [2024-11-23 22:36:11,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b96136c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:36:11, skipping insertion in model container [2024-11-23 22:36:11,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:36:11" (3/3) ... [2024-11-23 22:36:11,720 INFO L128 eAbstractionObserver]: Analyzing ICFG hard2_unwindbound100.c [2024-11-23 22:36:11,739 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:36:11,741 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hard2_unwindbound100.c that has 2 procedures, 82 locations, 1 initial locations, 2 loop locations, and 28 error locations. [2024-11-23 22:36:11,825 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:36:11,847 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3f65facf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:36:11,847 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-23 22:36:11,853 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 45 states have (on average 1.8) internal successors, (81), 73 states have internal predecessors, (81), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-23 22:36:11,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-23 22:36:11,860 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:11,861 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-23 22:36:11,862 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:11,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:11,869 INFO L85 PathProgramCache]: Analyzing trace with hash 925636, now seen corresponding path program 1 times [2024-11-23 22:36:11,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:11,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152493221] [2024-11-23 22:36:11,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:11,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:12,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:12,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:12,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152493221] [2024-11-23 22:36:12,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152493221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:12,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:12,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 22:36:12,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096262502] [2024-11-23 22:36:12,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:12,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:36:12,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:12,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:36:12,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:36:12,165 INFO L87 Difference]: Start difference. First operand has 82 states, 45 states have (on average 1.8) internal successors, (81), 73 states have internal predecessors, (81), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:12,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:12,302 INFO L93 Difference]: Finished difference Result 165 states and 202 transitions. [2024-11-23 22:36:12,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:36:12,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-23 22:36:12,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:12,313 INFO L225 Difference]: With dead ends: 165 [2024-11-23 22:36:12,313 INFO L226 Difference]: Without dead ends: 78 [2024-11-23 22:36:12,316 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:36:12,320 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 4 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:12,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 253 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:36:12,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-23 22:36:12,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-23 22:36:12,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 44 states have (on average 1.7272727272727273) internal successors, (76), 71 states have internal predecessors, (76), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-23 22:36:12,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2024-11-23 22:36:12,376 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 4 [2024-11-23 22:36:12,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:12,377 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2024-11-23 22:36:12,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:12,378 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2024-11-23 22:36:12,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-23 22:36:12,380 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:12,381 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:12,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 22:36:12,382 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:12,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:12,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1496348935, now seen corresponding path program 1 times [2024-11-23 22:36:12,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:12,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946002668] [2024-11-23 22:36:12,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:12,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 22:36:12,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1018183479] [2024-11-23 22:36:12,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:12,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:12,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:12,427 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:12,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 22:36:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:12,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 22:36:12,487 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:12,622 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 22:36:12,622 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:36:12,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:12,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946002668] [2024-11-23 22:36:12,623 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:36:12,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018183479] [2024-11-23 22:36:12,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018183479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:12,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:12,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 22:36:12,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942179480] [2024-11-23 22:36:12,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:12,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:36:12,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:12,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:36:12,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:12,629 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-23 22:36:12,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:12,819 INFO L93 Difference]: Finished difference Result 167 states and 191 transitions. [2024-11-23 22:36:12,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:36:12,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-11-23 22:36:12,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:12,821 INFO L225 Difference]: With dead ends: 167 [2024-11-23 22:36:12,821 INFO L226 Difference]: Without dead ends: 113 [2024-11-23 22:36:12,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:12,823 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 29 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:12,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 118 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:36:12,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-23 22:36:12,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 101. [2024-11-23 22:36:12,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 62 states have (on average 1.6774193548387097) internal successors, (104), 89 states have internal predecessors, (104), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-23 22:36:12,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 124 transitions. [2024-11-23 22:36:12,839 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 124 transitions. Word has length 17 [2024-11-23 22:36:12,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:12,840 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 124 transitions. [2024-11-23 22:36:12,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-23 22:36:12,840 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 124 transitions. [2024-11-23 22:36:12,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-23 22:36:12,841 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:12,841 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:12,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:13,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:13,046 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:13,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:13,046 INFO L85 PathProgramCache]: Analyzing trace with hash 328891425, now seen corresponding path program 1 times [2024-11-23 22:36:13,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:13,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127878227] [2024-11-23 22:36:13,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:13,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:13,250 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 22:36:13,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:13,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127878227] [2024-11-23 22:36:13,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127878227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:13,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:13,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 22:36:13,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336040387] [2024-11-23 22:36:13,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:13,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:36:13,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:13,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:36:13,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:13,252 INFO L87 Difference]: Start difference. First operand 101 states and 124 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 22:36:13,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:13,357 INFO L93 Difference]: Finished difference Result 113 states and 131 transitions. [2024-11-23 22:36:13,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:36:13,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-11-23 22:36:13,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:13,359 INFO L225 Difference]: With dead ends: 113 [2024-11-23 22:36:13,359 INFO L226 Difference]: Without dead ends: 111 [2024-11-23 22:36:13,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:13,360 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 23 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:13,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 131 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:36:13,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-23 22:36:13,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 101. [2024-11-23 22:36:13,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 62 states have (on average 1.6451612903225807) internal successors, (102), 89 states have internal predecessors, (102), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-23 22:36:13,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 122 transitions. [2024-11-23 22:36:13,373 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 122 transitions. Word has length 25 [2024-11-23 22:36:13,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:13,374 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 122 transitions. [2024-11-23 22:36:13,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 22:36:13,374 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 122 transitions. [2024-11-23 22:36:13,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-23 22:36:13,375 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:13,375 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:13,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 22:36:13,375 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:13,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:13,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1605698107, now seen corresponding path program 1 times [2024-11-23 22:36:13,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:13,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45713320] [2024-11-23 22:36:13,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:13,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:13,530 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 22:36:13,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:13,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45713320] [2024-11-23 22:36:13,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45713320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:13,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:13,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 22:36:13,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557930124] [2024-11-23 22:36:13,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:13,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:36:13,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:13,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:36:13,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:36:13,532 INFO L87 Difference]: Start difference. First operand 101 states and 122 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 22:36:13,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:13,674 INFO L93 Difference]: Finished difference Result 124 states and 137 transitions. [2024-11-23 22:36:13,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:36:13,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2024-11-23 22:36:13,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:13,677 INFO L225 Difference]: With dead ends: 124 [2024-11-23 22:36:13,677 INFO L226 Difference]: Without dead ends: 123 [2024-11-23 22:36:13,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:36:13,678 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 46 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:13,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 380 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:36:13,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-23 22:36:13,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 105. [2024-11-23 22:36:13,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 65 states have (on average 1.6) internal successors, (104), 92 states have internal predecessors, (104), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-23 22:36:13,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 124 transitions. [2024-11-23 22:36:13,703 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 124 transitions. Word has length 26 [2024-11-23 22:36:13,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:13,704 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 124 transitions. [2024-11-23 22:36:13,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 22:36:13,704 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 124 transitions. [2024-11-23 22:36:13,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-23 22:36:13,705 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:13,705 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:13,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 22:36:13,705 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:13,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:13,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1762966159, now seen corresponding path program 1 times [2024-11-23 22:36:13,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:13,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159989294] [2024-11-23 22:36:13,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:13,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:13,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:13,880 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 22:36:13,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:13,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159989294] [2024-11-23 22:36:13,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159989294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:13,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:13,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 22:36:13,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74041302] [2024-11-23 22:36:13,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:13,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:36:13,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:13,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:36:13,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:36:13,881 INFO L87 Difference]: Start difference. First operand 105 states and 124 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 22:36:13,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:13,999 INFO L93 Difference]: Finished difference Result 123 states and 139 transitions. [2024-11-23 22:36:13,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:36:13,999 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2024-11-23 22:36:14,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:14,000 INFO L225 Difference]: With dead ends: 123 [2024-11-23 22:36:14,001 INFO L226 Difference]: Without dead ends: 114 [2024-11-23 22:36:14,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:36:14,002 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 21 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:14,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 419 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:36:14,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-23 22:36:14,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 109. [2024-11-23 22:36:14,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 68 states have (on average 1.5441176470588236) internal successors, (105), 95 states have internal predecessors, (105), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-23 22:36:14,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 125 transitions. [2024-11-23 22:36:14,027 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 125 transitions. Word has length 27 [2024-11-23 22:36:14,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:14,028 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 125 transitions. [2024-11-23 22:36:14,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 22:36:14,028 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 125 transitions. [2024-11-23 22:36:14,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-23 22:36:14,029 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:14,029 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:14,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 22:36:14,029 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:14,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:14,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1993361642, now seen corresponding path program 1 times [2024-11-23 22:36:14,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:14,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391457746] [2024-11-23 22:36:14,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:14,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:14,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 22:36:14,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [743034265] [2024-11-23 22:36:14,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:14,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:14,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:14,067 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:14,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 22:36:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:14,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:36:14,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:14,163 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 22:36:14,163 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:36:14,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:14,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391457746] [2024-11-23 22:36:14,164 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:36:14,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743034265] [2024-11-23 22:36:14,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743034265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:14,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:14,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 22:36:14,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425172370] [2024-11-23 22:36:14,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:14,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:36:14,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:14,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:36:14,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:14,166 INFO L87 Difference]: Start difference. First operand 109 states and 125 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 22:36:14,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:14,248 INFO L93 Difference]: Finished difference Result 149 states and 175 transitions. [2024-11-23 22:36:14,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:36:14,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2024-11-23 22:36:14,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:14,250 INFO L225 Difference]: With dead ends: 149 [2024-11-23 22:36:14,250 INFO L226 Difference]: Without dead ends: 145 [2024-11-23 22:36:14,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:14,251 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 45 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:14,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 105 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:36:14,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-23 22:36:14,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 129. [2024-11-23 22:36:14,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 86 states have (on average 1.558139534883721) internal successors, (134), 113 states have internal predecessors, (134), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:36:14,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 158 transitions. [2024-11-23 22:36:14,272 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 158 transitions. Word has length 29 [2024-11-23 22:36:14,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:14,272 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 158 transitions. [2024-11-23 22:36:14,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 22:36:14,272 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 158 transitions. [2024-11-23 22:36:14,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-23 22:36:14,273 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:14,273 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:14,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 22:36:14,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:14,474 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:14,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:14,474 INFO L85 PathProgramCache]: Analyzing trace with hash -244664895, now seen corresponding path program 1 times [2024-11-23 22:36:14,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:14,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933189026] [2024-11-23 22:36:14,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:14,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:14,624 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 22:36:14,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:14,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933189026] [2024-11-23 22:36:14,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933189026] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:14,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598707120] [2024-11-23 22:36:14,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:14,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:14,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:14,627 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:14,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 22:36:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:14,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 22:36:14,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:14,849 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 22:36:14,850 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:36:14,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598707120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:14,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:36:14,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-23 22:36:14,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255460011] [2024-11-23 22:36:14,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:14,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:36:14,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:14,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:36:14,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:36:14,852 INFO L87 Difference]: Start difference. First operand 129 states and 158 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 22:36:14,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:14,905 INFO L93 Difference]: Finished difference Result 138 states and 166 transitions. [2024-11-23 22:36:14,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:36:14,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2024-11-23 22:36:14,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:14,908 INFO L225 Difference]: With dead ends: 138 [2024-11-23 22:36:14,908 INFO L226 Difference]: Without dead ends: 137 [2024-11-23 22:36:14,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:36:14,909 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 19 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:14,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 198 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:36:14,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-23 22:36:14,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 132. [2024-11-23 22:36:14,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 89 states have (on average 1.5280898876404494) internal successors, (136), 115 states have internal predecessors, (136), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:36:14,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 160 transitions. [2024-11-23 22:36:14,935 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 160 transitions. Word has length 30 [2024-11-23 22:36:14,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:14,935 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 160 transitions. [2024-11-23 22:36:14,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 22:36:14,936 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 160 transitions. [2024-11-23 22:36:14,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-23 22:36:14,936 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:14,937 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:14,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:15,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-23 22:36:15,141 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:15,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:15,142 INFO L85 PathProgramCache]: Analyzing trace with hash -65121192, now seen corresponding path program 1 times [2024-11-23 22:36:15,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:15,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466160229] [2024-11-23 22:36:15,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:15,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 22:36:15,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [643052289] [2024-11-23 22:36:15,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:15,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:15,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:15,171 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:15,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 22:36:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:15,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 22:36:15,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:15,377 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 22:36:15,378 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:36:15,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:15,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466160229] [2024-11-23 22:36:15,378 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:36:15,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643052289] [2024-11-23 22:36:15,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643052289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:15,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:15,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 22:36:15,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260844125] [2024-11-23 22:36:15,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:15,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:36:15,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:15,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:36:15,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:15,381 INFO L87 Difference]: Start difference. First operand 132 states and 160 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 22:36:15,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:15,466 INFO L93 Difference]: Finished difference Result 146 states and 167 transitions. [2024-11-23 22:36:15,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:36:15,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2024-11-23 22:36:15,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:15,468 INFO L225 Difference]: With dead ends: 146 [2024-11-23 22:36:15,469 INFO L226 Difference]: Without dead ends: 144 [2024-11-23 22:36:15,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:15,470 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 38 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:15,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 96 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:36:15,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-23 22:36:15,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 133. [2024-11-23 22:36:15,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 90 states have (on average 1.5) internal successors, (135), 116 states have internal predecessors, (135), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:36:15,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 159 transitions. [2024-11-23 22:36:15,485 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 159 transitions. Word has length 31 [2024-11-23 22:36:15,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:15,486 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 159 transitions. [2024-11-23 22:36:15,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 22:36:15,486 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 159 transitions. [2024-11-23 22:36:15,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-23 22:36:15,487 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:15,487 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:15,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:15,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-23 22:36:15,688 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:15,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:15,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1005322887, now seen corresponding path program 1 times [2024-11-23 22:36:15,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:15,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057844164] [2024-11-23 22:36:15,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:15,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:15,821 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 22:36:15,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:15,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057844164] [2024-11-23 22:36:15,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057844164] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:15,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894352950] [2024-11-23 22:36:15,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:15,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:15,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:15,827 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:15,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 22:36:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:15,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 22:36:15,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:15,989 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 22:36:15,990 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:36:15,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894352950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:15,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:36:15,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-23 22:36:15,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519845053] [2024-11-23 22:36:15,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:15,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:36:15,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:15,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:36:15,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:36:15,991 INFO L87 Difference]: Start difference. First operand 133 states and 159 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 22:36:16,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:16,106 INFO L93 Difference]: Finished difference Result 138 states and 164 transitions. [2024-11-23 22:36:16,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:36:16,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2024-11-23 22:36:16,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:16,109 INFO L225 Difference]: With dead ends: 138 [2024-11-23 22:36:16,109 INFO L226 Difference]: Without dead ends: 137 [2024-11-23 22:36:16,110 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:36:16,110 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 16 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:16,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 269 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:36:16,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-23 22:36:16,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 132. [2024-11-23 22:36:16,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 90 states have (on average 1.488888888888889) internal successors, (134), 115 states have internal predecessors, (134), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:36:16,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 158 transitions. [2024-11-23 22:36:16,134 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 158 transitions. Word has length 31 [2024-11-23 22:36:16,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:16,134 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 158 transitions. [2024-11-23 22:36:16,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 22:36:16,135 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 158 transitions. [2024-11-23 22:36:16,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-23 22:36:16,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:16,136 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:16,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:16,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-23 22:36:16,337 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:16,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:16,338 INFO L85 PathProgramCache]: Analyzing trace with hash -2018756862, now seen corresponding path program 1 times [2024-11-23 22:36:16,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:16,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473850514] [2024-11-23 22:36:16,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:16,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:16,450 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 22:36:16,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:16,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473850514] [2024-11-23 22:36:16,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473850514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:16,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:16,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 22:36:16,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957553648] [2024-11-23 22:36:16,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:16,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:36:16,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:16,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:36:16,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:36:16,452 INFO L87 Difference]: Start difference. First operand 132 states and 158 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 22:36:16,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:16,852 INFO L93 Difference]: Finished difference Result 152 states and 184 transitions. [2024-11-23 22:36:16,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:36:16,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2024-11-23 22:36:16,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:16,853 INFO L225 Difference]: With dead ends: 152 [2024-11-23 22:36:16,853 INFO L226 Difference]: Without dead ends: 151 [2024-11-23 22:36:16,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:36:16,854 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 90 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:16,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 159 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:36:16,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-23 22:36:16,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 140. [2024-11-23 22:36:16,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 98 states have (on average 1.489795918367347) internal successors, (146), 123 states have internal predecessors, (146), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:36:16,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 170 transitions. [2024-11-23 22:36:16,870 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 170 transitions. Word has length 32 [2024-11-23 22:36:16,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:16,871 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 170 transitions. [2024-11-23 22:36:16,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 22:36:16,871 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 170 transitions. [2024-11-23 22:36:16,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-23 22:36:16,872 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:16,872 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:16,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 22:36:16,872 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:16,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:16,873 INFO L85 PathProgramCache]: Analyzing trace with hash 767217160, now seen corresponding path program 1 times [2024-11-23 22:36:16,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:16,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061721732] [2024-11-23 22:36:16,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:16,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:16,964 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 22:36:16,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:16,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061721732] [2024-11-23 22:36:16,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061721732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:16,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312838058] [2024-11-23 22:36:16,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:16,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:16,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:16,969 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:16,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 22:36:17,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:17,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 22:36:17,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:17,098 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 22:36:17,098 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:17,193 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 22:36:17,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312838058] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:36:17,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:36:17,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2024-11-23 22:36:17,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587788021] [2024-11-23 22:36:17,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:36:17,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 22:36:17,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:17,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 22:36:17,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:36:17,195 INFO L87 Difference]: Start difference. First operand 140 states and 170 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-23 22:36:17,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:17,374 INFO L93 Difference]: Finished difference Result 281 states and 342 transitions. [2024-11-23 22:36:17,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 22:36:17,374 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 34 [2024-11-23 22:36:17,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:17,375 INFO L225 Difference]: With dead ends: 281 [2024-11-23 22:36:17,376 INFO L226 Difference]: Without dead ends: 202 [2024-11-23 22:36:17,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-11-23 22:36:17,377 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 65 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:17,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 398 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:36:17,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-11-23 22:36:17,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 180. [2024-11-23 22:36:17,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 130 states have (on average 1.476923076923077) internal successors, (192), 155 states have internal predecessors, (192), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 22:36:17,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 228 transitions. [2024-11-23 22:36:17,398 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 228 transitions. Word has length 34 [2024-11-23 22:36:17,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:17,398 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 228 transitions. [2024-11-23 22:36:17,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-23 22:36:17,398 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 228 transitions. [2024-11-23 22:36:17,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-23 22:36:17,401 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:17,401 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:17,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:17,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-23 22:36:17,602 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:17,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:17,602 INFO L85 PathProgramCache]: Analyzing trace with hash -874625494, now seen corresponding path program 1 times [2024-11-23 22:36:17,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:17,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149823871] [2024-11-23 22:36:17,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:17,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 22:36:17,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1377986092] [2024-11-23 22:36:17,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:17,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:17,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:17,617 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:17,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 22:36:17,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:17,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 22:36:17,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:17,811 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-23 22:36:17,811 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:36:17,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:17,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149823871] [2024-11-23 22:36:17,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:36:17,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377986092] [2024-11-23 22:36:17,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377986092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:17,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:17,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:36:17,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010788210] [2024-11-23 22:36:17,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:17,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:36:17,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:17,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:36:17,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:36:17,813 INFO L87 Difference]: Start difference. First operand 180 states and 228 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 22:36:17,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:17,948 INFO L93 Difference]: Finished difference Result 216 states and 267 transitions. [2024-11-23 22:36:17,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:36:17,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2024-11-23 22:36:17,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:17,951 INFO L225 Difference]: With dead ends: 216 [2024-11-23 22:36:17,951 INFO L226 Difference]: Without dead ends: 207 [2024-11-23 22:36:17,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:36:17,952 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 79 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:17,952 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 125 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:36:17,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-23 22:36:17,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 189. [2024-11-23 22:36:17,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 141 states have (on average 1.3971631205673758) internal successors, (197), 162 states have internal predecessors, (197), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-23 22:36:17,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 237 transitions. [2024-11-23 22:36:17,980 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 237 transitions. Word has length 43 [2024-11-23 22:36:17,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:17,981 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 237 transitions. [2024-11-23 22:36:17,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 22:36:17,981 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 237 transitions. [2024-11-23 22:36:17,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-23 22:36:17,982 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:17,982 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:17,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:18,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:18,183 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:18,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:18,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1343586486, now seen corresponding path program 1 times [2024-11-23 22:36:18,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:18,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153009165] [2024-11-23 22:36:18,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:18,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 22:36:18,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [154731214] [2024-11-23 22:36:18,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:18,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:18,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:18,200 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:18,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 22:36:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:18,249 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 22:36:18,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:18,376 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-23 22:36:18,377 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:18,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:18,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153009165] [2024-11-23 22:36:18,721 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:36:18,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154731214] [2024-11-23 22:36:18,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154731214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:18,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:36:18,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-11-23 22:36:18,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125495084] [2024-11-23 22:36:18,722 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 22:36:18,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:36:18,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:18,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:36:18,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:36:18,723 INFO L87 Difference]: Start difference. First operand 189 states and 237 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 22:36:18,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:18,887 INFO L93 Difference]: Finished difference Result 286 states and 361 transitions. [2024-11-23 22:36:18,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:36:18,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 44 [2024-11-23 22:36:18,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:18,890 INFO L225 Difference]: With dead ends: 286 [2024-11-23 22:36:18,890 INFO L226 Difference]: Without dead ends: 282 [2024-11-23 22:36:18,890 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:36:18,891 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 66 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:18,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 166 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:36:18,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-23 22:36:18,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 250. [2024-11-23 22:36:18,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 196 states have (on average 1.433673469387755) internal successors, (281), 217 states have internal predecessors, (281), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-23 22:36:18,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 333 transitions. [2024-11-23 22:36:18,921 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 333 transitions. Word has length 44 [2024-11-23 22:36:18,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:18,921 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 333 transitions. [2024-11-23 22:36:18,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 22:36:18,921 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 333 transitions. [2024-11-23 22:36:18,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-23 22:36:18,924 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:18,924 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:18,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:19,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-23 22:36:19,130 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:19,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:19,131 INFO L85 PathProgramCache]: Analyzing trace with hash 177539779, now seen corresponding path program 1 times [2024-11-23 22:36:19,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:19,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216612311] [2024-11-23 22:36:19,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:19,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:19,279 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-23 22:36:19,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:19,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216612311] [2024-11-23 22:36:19,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216612311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:19,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:19,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 22:36:19,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055058776] [2024-11-23 22:36:19,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:19,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:36:19,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:19,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:36:19,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:36:19,280 INFO L87 Difference]: Start difference. First operand 250 states and 333 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 22:36:19,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:19,394 INFO L93 Difference]: Finished difference Result 255 states and 337 transitions. [2024-11-23 22:36:19,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:36:19,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2024-11-23 22:36:19,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:19,396 INFO L225 Difference]: With dead ends: 255 [2024-11-23 22:36:19,397 INFO L226 Difference]: Without dead ends: 233 [2024-11-23 22:36:19,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:36:19,398 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 25 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:19,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 123 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:36:19,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-23 22:36:19,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2024-11-23 22:36:19,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 182 states have (on average 1.4615384615384615) internal successors, (266), 203 states have internal predecessors, (266), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-23 22:36:19,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 314 transitions. [2024-11-23 22:36:19,425 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 314 transitions. Word has length 49 [2024-11-23 22:36:19,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:19,425 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 314 transitions. [2024-11-23 22:36:19,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 22:36:19,426 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 314 transitions. [2024-11-23 22:36:19,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-23 22:36:19,427 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:19,427 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:19,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 22:36:19,428 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:19,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:19,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1685686716, now seen corresponding path program 1 times [2024-11-23 22:36:19,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:19,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926776720] [2024-11-23 22:36:19,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:19,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:19,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:19,512 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-23 22:36:19,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:19,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926776720] [2024-11-23 22:36:19,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926776720] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:19,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293706947] [2024-11-23 22:36:19,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:19,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:19,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:19,514 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:19,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 22:36:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:19,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 22:36:19,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:19,624 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-23 22:36:19,624 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:36:19,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293706947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:19,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:36:19,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-23 22:36:19,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750479933] [2024-11-23 22:36:19,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:19,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:36:19,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:19,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:36:19,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:36:19,626 INFO L87 Difference]: Start difference. First operand 233 states and 314 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-23 22:36:19,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:19,747 INFO L93 Difference]: Finished difference Result 336 states and 463 transitions. [2024-11-23 22:36:19,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:36:19,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2024-11-23 22:36:19,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:19,750 INFO L225 Difference]: With dead ends: 336 [2024-11-23 22:36:19,750 INFO L226 Difference]: Without dead ends: 334 [2024-11-23 22:36:19,750 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:36:19,751 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 59 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:19,753 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 152 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:36:19,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-23 22:36:19,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 306. [2024-11-23 22:36:19,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 248 states have (on average 1.4838709677419355) internal successors, (368), 268 states have internal predecessors, (368), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 22:36:19,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 432 transitions. [2024-11-23 22:36:19,788 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 432 transitions. Word has length 51 [2024-11-23 22:36:19,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:19,789 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 432 transitions. [2024-11-23 22:36:19,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-23 22:36:19,789 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 432 transitions. [2024-11-23 22:36:19,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-23 22:36:19,789 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:19,789 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:19,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-23 22:36:19,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-23 22:36:19,995 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:19,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:19,995 INFO L85 PathProgramCache]: Analyzing trace with hash -716682120, now seen corresponding path program 1 times [2024-11-23 22:36:19,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:19,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780066895] [2024-11-23 22:36:19,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:19,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:20,167 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-23 22:36:20,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:20,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780066895] [2024-11-23 22:36:20,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780066895] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:20,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827737050] [2024-11-23 22:36:20,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:20,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:20,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:20,170 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:20,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 22:36:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:20,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 22:36:20,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:20,397 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-23 22:36:20,397 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:36:20,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827737050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:20,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:36:20,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-23 22:36:20,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703929367] [2024-11-23 22:36:20,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:20,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:36:20,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:20,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:36:20,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:36:20,399 INFO L87 Difference]: Start difference. First operand 306 states and 432 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-23 22:36:20,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:20,486 INFO L93 Difference]: Finished difference Result 306 states and 432 transitions. [2024-11-23 22:36:20,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:36:20,487 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2024-11-23 22:36:20,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:20,489 INFO L225 Difference]: With dead ends: 306 [2024-11-23 22:36:20,489 INFO L226 Difference]: Without dead ends: 305 [2024-11-23 22:36:20,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-23 22:36:20,491 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 111 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:20,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 187 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:36:20,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-23 22:36:20,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2024-11-23 22:36:20,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 248 states have (on average 1.435483870967742) internal successors, (356), 267 states have internal predecessors, (356), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 22:36:20,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 420 transitions. [2024-11-23 22:36:20,528 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 420 transitions. Word has length 52 [2024-11-23 22:36:20,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:20,528 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 420 transitions. [2024-11-23 22:36:20,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-23 22:36:20,529 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 420 transitions. [2024-11-23 22:36:20,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-23 22:36:20,529 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:20,530 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:20,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:20,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-23 22:36:20,730 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:20,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:20,731 INFO L85 PathProgramCache]: Analyzing trace with hash -716680582, now seen corresponding path program 1 times [2024-11-23 22:36:20,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:20,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609311749] [2024-11-23 22:36:20,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:20,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:20,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:20,815 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-23 22:36:20,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:20,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609311749] [2024-11-23 22:36:20,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609311749] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:20,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418491472] [2024-11-23 22:36:20,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:20,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:20,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:20,817 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:20,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-23 22:36:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:20,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 22:36:20,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:20,933 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-23 22:36:20,933 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:21,027 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-23 22:36:21,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418491472] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:36:21,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:36:21,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-23 22:36:21,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495994019] [2024-11-23 22:36:21,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:36:21,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:36:21,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:21,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:36:21,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:36:21,030 INFO L87 Difference]: Start difference. First operand 305 states and 420 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-23 22:36:21,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:21,298 INFO L93 Difference]: Finished difference Result 472 states and 642 transitions. [2024-11-23 22:36:21,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:36:21,299 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 52 [2024-11-23 22:36:21,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:21,302 INFO L225 Difference]: With dead ends: 472 [2024-11-23 22:36:21,302 INFO L226 Difference]: Without dead ends: 470 [2024-11-23 22:36:21,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:36:21,303 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 193 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:21,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 266 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:36:21,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-11-23 22:36:21,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 411. [2024-11-23 22:36:21,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 341 states have (on average 1.4486803519061584) internal successors, (494), 360 states have internal predecessors, (494), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-23 22:36:21,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 584 transitions. [2024-11-23 22:36:21,341 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 584 transitions. Word has length 52 [2024-11-23 22:36:21,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:21,341 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 584 transitions. [2024-11-23 22:36:21,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-23 22:36:21,341 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 584 transitions. [2024-11-23 22:36:21,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-23 22:36:21,342 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:21,342 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:21,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:21,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-23 22:36:21,543 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:21,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:21,544 INFO L85 PathProgramCache]: Analyzing trace with hash -742309164, now seen corresponding path program 1 times [2024-11-23 22:36:21,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:21,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861886196] [2024-11-23 22:36:21,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:21,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:21,677 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-23 22:36:21,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:21,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861886196] [2024-11-23 22:36:21,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861886196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:21,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592581125] [2024-11-23 22:36:21,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:21,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:21,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:21,681 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:21,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-23 22:36:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:21,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 22:36:21,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:21,871 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 3 proven. 43 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-23 22:36:21,871 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:22,031 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-23 22:36:22,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592581125] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:36:22,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:36:22,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-11-23 22:36:22,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658088374] [2024-11-23 22:36:22,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:36:22,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-23 22:36:22,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:22,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-23 22:36:22,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-11-23 22:36:22,035 INFO L87 Difference]: Start difference. First operand 411 states and 584 transitions. Second operand has 19 states, 18 states have (on average 4.111111111111111) internal successors, (74), 19 states have internal predecessors, (74), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-23 22:36:22,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:22,466 INFO L93 Difference]: Finished difference Result 475 states and 638 transitions. [2024-11-23 22:36:22,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-23 22:36:22,467 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.111111111111111) internal successors, (74), 19 states have internal predecessors, (74), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 53 [2024-11-23 22:36:22,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:22,470 INFO L225 Difference]: With dead ends: 475 [2024-11-23 22:36:22,470 INFO L226 Difference]: Without dead ends: 469 [2024-11-23 22:36:22,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=241, Invalid=689, Unknown=0, NotChecked=0, Total=930 [2024-11-23 22:36:22,471 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 341 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:22,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 608 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:36:22,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-23 22:36:22,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 440. [2024-11-23 22:36:22,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 368 states have (on average 1.4048913043478262) internal successors, (517), 387 states have internal predecessors, (517), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-23 22:36:22,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 607 transitions. [2024-11-23 22:36:22,506 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 607 transitions. Word has length 53 [2024-11-23 22:36:22,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:22,506 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 607 transitions. [2024-11-23 22:36:22,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.111111111111111) internal successors, (74), 19 states have internal predecessors, (74), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-23 22:36:22,506 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 607 transitions. [2024-11-23 22:36:22,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-23 22:36:22,507 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:22,507 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-23 22:36:22,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-23 22:36:22,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-23 22:36:22,708 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:22,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:22,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1217958983, now seen corresponding path program 2 times [2024-11-23 22:36:22,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:22,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074638843] [2024-11-23 22:36:22,709 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:36:22,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:22,730 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:36:22,730 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 22:36:22,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1602709051] [2024-11-23 22:36:22,732 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:36:22,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:22,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:22,734 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:22,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-23 22:36:22,789 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:36:22,790 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:36:22,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 22:36:22,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:22,970 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-23 22:36:22,970 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:23,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:23,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074638843] [2024-11-23 22:36:23,210 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:36:23,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602709051] [2024-11-23 22:36:23,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602709051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:23,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:36:23,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-23 22:36:23,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111333164] [2024-11-23 22:36:23,211 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 22:36:23,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:36:23,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:23,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:36:23,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:36:23,212 INFO L87 Difference]: Start difference. First operand 440 states and 607 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-23 22:36:23,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:23,456 INFO L93 Difference]: Finished difference Result 581 states and 792 transitions. [2024-11-23 22:36:23,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:36:23,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 70 [2024-11-23 22:36:23,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:23,460 INFO L225 Difference]: With dead ends: 581 [2024-11-23 22:36:23,460 INFO L226 Difference]: Without dead ends: 577 [2024-11-23 22:36:23,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:36:23,461 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 106 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:23,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 183 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:36:23,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-23 22:36:23,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 490. [2024-11-23 22:36:23,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 412 states have (on average 1.3907766990291262) internal successors, (573), 431 states have internal predecessors, (573), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-23 22:36:23,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 675 transitions. [2024-11-23 22:36:23,520 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 675 transitions. Word has length 70 [2024-11-23 22:36:23,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:23,521 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 675 transitions. [2024-11-23 22:36:23,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-23 22:36:23,521 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 675 transitions. [2024-11-23 22:36:23,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-23 22:36:23,524 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:23,524 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:23,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:23,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:23,726 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:23,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:23,726 INFO L85 PathProgramCache]: Analyzing trace with hash 533823658, now seen corresponding path program 1 times [2024-11-23 22:36:23,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:23,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896251444] [2024-11-23 22:36:23,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:23,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:23,841 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-23 22:36:23,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:23,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896251444] [2024-11-23 22:36:23,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896251444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:23,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:23,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 22:36:23,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694702205] [2024-11-23 22:36:23,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:23,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:36:23,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:23,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:36:23,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:23,843 INFO L87 Difference]: Start difference. First operand 490 states and 675 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 22:36:23,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:23,934 INFO L93 Difference]: Finished difference Result 490 states and 675 transitions. [2024-11-23 22:36:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:36:23,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 77 [2024-11-23 22:36:23,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:23,938 INFO L225 Difference]: With dead ends: 490 [2024-11-23 22:36:23,938 INFO L226 Difference]: Without dead ends: 489 [2024-11-23 22:36:23,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:23,940 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 2 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:23,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 114 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:36:23,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-11-23 22:36:23,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2024-11-23 22:36:23,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 412 states have (on average 1.3713592233009708) internal successors, (565), 430 states have internal predecessors, (565), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-23 22:36:23,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 667 transitions. [2024-11-23 22:36:23,982 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 667 transitions. Word has length 77 [2024-11-23 22:36:23,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:23,983 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 667 transitions. [2024-11-23 22:36:23,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 22:36:23,983 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 667 transitions. [2024-11-23 22:36:23,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-23 22:36:23,984 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:23,984 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:23,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 22:36:23,984 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:23,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:23,985 INFO L85 PathProgramCache]: Analyzing trace with hash -631335670, now seen corresponding path program 1 times [2024-11-23 22:36:23,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:23,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940304725] [2024-11-23 22:36:23,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:23,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:24,183 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-23 22:36:24,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:24,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940304725] [2024-11-23 22:36:24,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940304725] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:24,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369510156] [2024-11-23 22:36:24,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:24,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:24,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:24,187 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:24,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-23 22:36:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:24,243 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 22:36:24,245 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:24,459 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-23 22:36:24,459 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:36:24,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369510156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:24,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:36:24,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-23 22:36:24,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61858346] [2024-11-23 22:36:24,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:24,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:36:24,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:24,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:36:24,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:36:24,461 INFO L87 Difference]: Start difference. First operand 489 states and 667 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-23 22:36:24,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:24,604 INFO L93 Difference]: Finished difference Result 514 states and 689 transitions. [2024-11-23 22:36:24,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:36:24,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2024-11-23 22:36:24,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:24,608 INFO L225 Difference]: With dead ends: 514 [2024-11-23 22:36:24,608 INFO L226 Difference]: Without dead ends: 513 [2024-11-23 22:36:24,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:36:24,609 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 40 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:24,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 126 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:36:24,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-23 22:36:24,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 489. [2024-11-23 22:36:24,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 412 states have (on average 1.3616504854368932) internal successors, (561), 430 states have internal predecessors, (561), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-23 22:36:24,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 663 transitions. [2024-11-23 22:36:24,681 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 663 transitions. Word has length 78 [2024-11-23 22:36:24,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:24,681 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 663 transitions. [2024-11-23 22:36:24,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-23 22:36:24,682 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 663 transitions. [2024-11-23 22:36:24,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-23 22:36:24,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:24,683 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:24,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:24,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:24,884 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:24,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:24,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1903430828, now seen corresponding path program 1 times [2024-11-23 22:36:24,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:24,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397640697] [2024-11-23 22:36:24,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:24,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:24,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:25,089 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-23 22:36:25,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:25,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397640697] [2024-11-23 22:36:25,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397640697] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:25,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648306778] [2024-11-23 22:36:25,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:25,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:25,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:25,092 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:25,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-23 22:36:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:25,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 22:36:25,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:25,411 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-23 22:36:25,411 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:36:25,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648306778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:25,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:36:25,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-23 22:36:25,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577471400] [2024-11-23 22:36:25,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:25,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:36:25,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:25,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:36:25,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:36:25,413 INFO L87 Difference]: Start difference. First operand 489 states and 663 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 22:36:25,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:25,658 INFO L93 Difference]: Finished difference Result 522 states and 700 transitions. [2024-11-23 22:36:25,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:36:25,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 79 [2024-11-23 22:36:25,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:25,662 INFO L225 Difference]: With dead ends: 522 [2024-11-23 22:36:25,662 INFO L226 Difference]: Without dead ends: 521 [2024-11-23 22:36:25,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:36:25,668 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 88 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:25,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 113 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:36:25,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-23 22:36:25,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 501. [2024-11-23 22:36:25,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 424 states have (on average 1.3514150943396226) internal successors, (573), 442 states have internal predecessors, (573), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-23 22:36:25,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 675 transitions. [2024-11-23 22:36:25,725 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 675 transitions. Word has length 79 [2024-11-23 22:36:25,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:25,726 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 675 transitions. [2024-11-23 22:36:25,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 22:36:25,726 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 675 transitions. [2024-11-23 22:36:25,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-23 22:36:25,727 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:25,727 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:25,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-23 22:36:25,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:25,929 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:25,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:25,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1123186356, now seen corresponding path program 1 times [2024-11-23 22:36:25,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:25,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748735438] [2024-11-23 22:36:25,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:25,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:26,168 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-23 22:36:26,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:26,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748735438] [2024-11-23 22:36:26,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748735438] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:26,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461913763] [2024-11-23 22:36:26,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:26,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:26,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:26,171 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:26,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-23 22:36:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:26,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 22:36:26,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:26,477 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-23 22:36:26,478 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:36:26,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461913763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:26,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:36:26,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-23 22:36:26,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724403446] [2024-11-23 22:36:26,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:26,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:36:26,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:26,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:36:26,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:36:26,482 INFO L87 Difference]: Start difference. First operand 501 states and 675 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 22:36:26,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:26,682 INFO L93 Difference]: Finished difference Result 517 states and 688 transitions. [2024-11-23 22:36:26,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:36:26,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 80 [2024-11-23 22:36:26,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:26,687 INFO L225 Difference]: With dead ends: 517 [2024-11-23 22:36:26,687 INFO L226 Difference]: Without dead ends: 515 [2024-11-23 22:36:26,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:36:26,689 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 43 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:26,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 110 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:36:26,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2024-11-23 22:36:26,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 505. [2024-11-23 22:36:26,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 428 states have (on average 1.3294392523364487) internal successors, (569), 446 states have internal predecessors, (569), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-23 22:36:26,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 671 transitions. [2024-11-23 22:36:26,785 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 671 transitions. Word has length 80 [2024-11-23 22:36:26,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:26,785 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 671 transitions. [2024-11-23 22:36:26,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 22:36:26,786 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 671 transitions. [2024-11-23 22:36:26,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-23 22:36:26,787 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:26,787 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:26,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-23 22:36:26,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:26,992 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:26,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:26,992 INFO L85 PathProgramCache]: Analyzing trace with hash 763367358, now seen corresponding path program 1 times [2024-11-23 22:36:26,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:26,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179957676] [2024-11-23 22:36:26,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:26,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:27,216 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-23 22:36:27,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:27,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179957676] [2024-11-23 22:36:27,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179957676] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:27,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009455709] [2024-11-23 22:36:27,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:27,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:27,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:27,222 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:27,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-23 22:36:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:27,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 22:36:27,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:27,460 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-23 22:36:27,461 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:27,711 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-23 22:36:27,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009455709] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:36:27,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:36:27,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 21 [2024-11-23 22:36:27,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579951496] [2024-11-23 22:36:27,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:36:27,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-23 22:36:27,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:27,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-23 22:36:27,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-23 22:36:27,713 INFO L87 Difference]: Start difference. First operand 505 states and 671 transitions. Second operand has 21 states, 21 states have (on average 4.380952380952381) internal successors, (92), 21 states have internal predecessors, (92), 6 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) [2024-11-23 22:36:28,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:28,300 INFO L93 Difference]: Finished difference Result 702 states and 911 transitions. [2024-11-23 22:36:28,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-23 22:36:28,301 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.380952380952381) internal successors, (92), 21 states have internal predecessors, (92), 6 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) Word has length 84 [2024-11-23 22:36:28,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:28,307 INFO L225 Difference]: With dead ends: 702 [2024-11-23 22:36:28,307 INFO L226 Difference]: Without dead ends: 569 [2024-11-23 22:36:28,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=355, Invalid=1127, Unknown=0, NotChecked=0, Total=1482 [2024-11-23 22:36:28,309 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 124 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:28,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 605 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:36:28,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-11-23 22:36:28,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 551. [2024-11-23 22:36:28,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 464 states have (on average 1.3060344827586208) internal successors, (606), 482 states have internal predecessors, (606), 57 states have call successors, (57), 11 states have call predecessors, (57), 11 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-23 22:36:28,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 720 transitions. [2024-11-23 22:36:28,376 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 720 transitions. Word has length 84 [2024-11-23 22:36:28,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:28,376 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 720 transitions. [2024-11-23 22:36:28,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.380952380952381) internal successors, (92), 21 states have internal predecessors, (92), 6 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) [2024-11-23 22:36:28,377 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 720 transitions. [2024-11-23 22:36:28,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-23 22:36:28,380 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:28,381 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:28,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:28,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:28,583 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:28,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:28,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1328952029, now seen corresponding path program 1 times [2024-11-23 22:36:28,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:28,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744355173] [2024-11-23 22:36:28,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:28,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 22:36:28,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1924273277] [2024-11-23 22:36:28,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:28,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:28,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:28,626 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:28,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-23 22:36:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:28,705 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 22:36:28,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:29,099 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-23 22:36:29,100 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:29,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:29,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744355173] [2024-11-23 22:36:29,820 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:36:29,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924273277] [2024-11-23 22:36:29,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924273277] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:29,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:36:29,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-23 22:36:29,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582093676] [2024-11-23 22:36:29,821 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 22:36:29,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:36:29,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:29,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:36:29,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:36:29,823 INFO L87 Difference]: Start difference. First operand 551 states and 720 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 22:36:30,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:30,087 INFO L93 Difference]: Finished difference Result 677 states and 903 transitions. [2024-11-23 22:36:30,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:36:30,087 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 85 [2024-11-23 22:36:30,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:30,091 INFO L225 Difference]: With dead ends: 677 [2024-11-23 22:36:30,091 INFO L226 Difference]: Without dead ends: 676 [2024-11-23 22:36:30,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:36:30,092 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 141 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:30,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 103 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:36:30,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2024-11-23 22:36:30,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 632. [2024-11-23 22:36:30,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 539 states have (on average 1.3320964749536177) internal successors, (718), 557 states have internal predecessors, (718), 63 states have call successors, (63), 11 states have call predecessors, (63), 11 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-23 22:36:30,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 844 transitions. [2024-11-23 22:36:30,158 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 844 transitions. Word has length 85 [2024-11-23 22:36:30,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:30,159 INFO L471 AbstractCegarLoop]: Abstraction has 632 states and 844 transitions. [2024-11-23 22:36:30,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 22:36:30,159 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 844 transitions. [2024-11-23 22:36:30,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-23 22:36:30,160 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:30,160 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:30,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:30,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-23 22:36:30,365 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:30,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:30,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1752160147, now seen corresponding path program 1 times [2024-11-23 22:36:30,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:30,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293085240] [2024-11-23 22:36:30,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:30,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 22:36:30,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [146494943] [2024-11-23 22:36:30,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:30,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:30,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:30,394 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:30,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-23 22:36:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:30,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 22:36:30,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:30,753 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-23 22:36:30,753 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:31,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:31,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293085240] [2024-11-23 22:36:31,478 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:36:31,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146494943] [2024-11-23 22:36:31,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146494943] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:31,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:36:31,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-23 22:36:31,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095859709] [2024-11-23 22:36:31,479 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 22:36:31,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:36:31,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:31,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:36:31,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:36:31,481 INFO L87 Difference]: Start difference. First operand 632 states and 844 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 22:36:31,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:31,693 INFO L93 Difference]: Finished difference Result 642 states and 849 transitions. [2024-11-23 22:36:31,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:36:31,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 86 [2024-11-23 22:36:31,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:31,698 INFO L225 Difference]: With dead ends: 642 [2024-11-23 22:36:31,698 INFO L226 Difference]: Without dead ends: 639 [2024-11-23 22:36:31,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:36:31,699 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 66 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:31,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 103 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:36:31,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-11-23 22:36:31,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 630. [2024-11-23 22:36:31,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 539 states have (on average 1.2838589981447124) internal successors, (692), 555 states have internal predecessors, (692), 63 states have call successors, (63), 11 states have call predecessors, (63), 11 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-23 22:36:31,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 818 transitions. [2024-11-23 22:36:31,758 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 818 transitions. Word has length 86 [2024-11-23 22:36:31,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:31,758 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 818 transitions. [2024-11-23 22:36:31,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 22:36:31,759 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 818 transitions. [2024-11-23 22:36:31,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-23 22:36:31,760 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:31,760 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:31,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-23 22:36:31,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-23 22:36:31,965 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:31,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:31,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1517610203, now seen corresponding path program 1 times [2024-11-23 22:36:31,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:31,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980178652] [2024-11-23 22:36:31,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:31,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:32,050 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-23 22:36:32,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:32,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980178652] [2024-11-23 22:36:32,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980178652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:32,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:32,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 22:36:32,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629877085] [2024-11-23 22:36:32,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:32,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:36:32,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:32,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:36:32,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:36:32,053 INFO L87 Difference]: Start difference. First operand 630 states and 818 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 22:36:32,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:32,357 INFO L93 Difference]: Finished difference Result 639 states and 826 transitions. [2024-11-23 22:36:32,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:36:32,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 87 [2024-11-23 22:36:32,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:32,360 INFO L225 Difference]: With dead ends: 639 [2024-11-23 22:36:32,360 INFO L226 Difference]: Without dead ends: 638 [2024-11-23 22:36:32,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:36:32,361 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 71 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:32,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 174 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:36:32,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-23 22:36:32,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 629. [2024-11-23 22:36:32,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 539 states have (on average 1.25417439703154) internal successors, (676), 554 states have internal predecessors, (676), 63 states have call successors, (63), 11 states have call predecessors, (63), 11 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-23 22:36:32,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 802 transitions. [2024-11-23 22:36:32,419 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 802 transitions. Word has length 87 [2024-11-23 22:36:32,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:32,420 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 802 transitions. [2024-11-23 22:36:32,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 22:36:32,420 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 802 transitions. [2024-11-23 22:36:32,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-23 22:36:32,421 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:32,421 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:32,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-23 22:36:32,422 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:32,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:32,422 INFO L85 PathProgramCache]: Analyzing trace with hash 198724053, now seen corresponding path program 1 times [2024-11-23 22:36:32,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:32,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479962613] [2024-11-23 22:36:32,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:32,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:32,624 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-23 22:36:32,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:32,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479962613] [2024-11-23 22:36:32,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479962613] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:32,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052253690] [2024-11-23 22:36:32,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:32,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:32,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:32,627 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:32,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-23 22:36:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:32,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-23 22:36:32,689 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:33,275 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-23 22:36:33,276 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:34,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052253690] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:34,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:36:34,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-23 22:36:34,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605937037] [2024-11-23 22:36:34,166 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:36:34,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 22:36:34,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:34,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 22:36:34,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-11-23 22:36:34,167 INFO L87 Difference]: Start difference. First operand 629 states and 802 transitions. Second operand has 16 states, 15 states have (on average 6.533333333333333) internal successors, (98), 16 states have internal predecessors, (98), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-23 22:36:35,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:35,780 INFO L93 Difference]: Finished difference Result 956 states and 1254 transitions. [2024-11-23 22:36:35,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-23 22:36:35,781 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.533333333333333) internal successors, (98), 16 states have internal predecessors, (98), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 88 [2024-11-23 22:36:35,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:35,786 INFO L225 Difference]: With dead ends: 956 [2024-11-23 22:36:35,787 INFO L226 Difference]: Without dead ends: 947 [2024-11-23 22:36:35,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=353, Invalid=1287, Unknown=0, NotChecked=0, Total=1640 [2024-11-23 22:36:35,788 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 541 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:35,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 421 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 22:36:35,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2024-11-23 22:36:35,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 742. [2024-11-23 22:36:35,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 642 states have (on average 1.264797507788162) internal successors, (812), 657 states have internal predecessors, (812), 73 states have call successors, (73), 11 states have call predecessors, (73), 11 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-23 22:36:35,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 958 transitions. [2024-11-23 22:36:35,884 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 958 transitions. Word has length 88 [2024-11-23 22:36:35,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:35,887 INFO L471 AbstractCegarLoop]: Abstraction has 742 states and 958 transitions. [2024-11-23 22:36:35,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.533333333333333) internal successors, (98), 16 states have internal predecessors, (98), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-23 22:36:35,888 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 958 transitions. [2024-11-23 22:36:35,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-23 22:36:35,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:35,890 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:35,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:36,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-23 22:36:36,091 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:36,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:36,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1396550732, now seen corresponding path program 1 times [2024-11-23 22:36:36,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:36,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286747197] [2024-11-23 22:36:36,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:36,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:36,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 22:36:36,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [589088059] [2024-11-23 22:36:36,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:36,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:36,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:36,121 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:36,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-23 22:36:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:36,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-23 22:36:36,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:36,675 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 3 proven. 47 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-23 22:36:36,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:37,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:37,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286747197] [2024-11-23 22:36:37,310 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:36:37,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589088059] [2024-11-23 22:36:37,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589088059] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:37,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:36:37,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-23 22:36:37,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15267850] [2024-11-23 22:36:37,311 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 22:36:37,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 22:36:37,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:37,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 22:36:37,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-23 22:36:37,312 INFO L87 Difference]: Start difference. First operand 742 states and 958 transitions. Second operand has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-23 22:36:37,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:37,855 INFO L93 Difference]: Finished difference Result 766 states and 973 transitions. [2024-11-23 22:36:37,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 22:36:37,856 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 102 [2024-11-23 22:36:37,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:37,860 INFO L225 Difference]: With dead ends: 766 [2024-11-23 22:36:37,860 INFO L226 Difference]: Without dead ends: 591 [2024-11-23 22:36:37,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:36:37,863 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 20 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:37,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 313 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 22:36:37,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2024-11-23 22:36:37,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 589. [2024-11-23 22:36:37,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 501 states have (on average 1.253493013972056) internal successors, (628), 516 states have internal predecessors, (628), 61 states have call successors, (61), 11 states have call predecessors, (61), 11 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-23 22:36:37,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 750 transitions. [2024-11-23 22:36:37,934 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 750 transitions. Word has length 102 [2024-11-23 22:36:37,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:37,934 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 750 transitions. [2024-11-23 22:36:37,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-23 22:36:37,935 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 750 transitions. [2024-11-23 22:36:37,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-23 22:36:37,937 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:37,937 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:37,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-23 22:36:38,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-23 22:36:38,138 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:38,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:38,139 INFO L85 PathProgramCache]: Analyzing trace with hash -2055452938, now seen corresponding path program 1 times [2024-11-23 22:36:38,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:38,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78560231] [2024-11-23 22:36:38,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:38,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:38,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:38,248 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-23 22:36:38,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:38,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78560231] [2024-11-23 22:36:38,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78560231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:38,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:38,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 22:36:38,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039608172] [2024-11-23 22:36:38,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:38,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:36:38,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:38,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:36:38,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:36:38,251 INFO L87 Difference]: Start difference. First operand 589 states and 750 transitions. Second operand has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-23 22:36:38,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:38,498 INFO L93 Difference]: Finished difference Result 593 states and 751 transitions. [2024-11-23 22:36:38,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:36:38,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 104 [2024-11-23 22:36:38,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:38,501 INFO L225 Difference]: With dead ends: 593 [2024-11-23 22:36:38,501 INFO L226 Difference]: Without dead ends: 550 [2024-11-23 22:36:38,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:36:38,502 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 32 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:38,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 229 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:36:38,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-23 22:36:38,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 545. [2024-11-23 22:36:38,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 463 states have (on average 1.2699784017278617) internal successors, (588), 477 states have internal predecessors, (588), 57 states have call successors, (57), 10 states have call predecessors, (57), 10 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-23 22:36:38,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 702 transitions. [2024-11-23 22:36:38,554 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 702 transitions. Word has length 104 [2024-11-23 22:36:38,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:38,555 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 702 transitions. [2024-11-23 22:36:38,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-23 22:36:38,555 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 702 transitions. [2024-11-23 22:36:38,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-23 22:36:38,556 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:38,556 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1] [2024-11-23 22:36:38,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-23 22:36:38,556 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:38,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:38,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1565033674, now seen corresponding path program 1 times [2024-11-23 22:36:38,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:38,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197850149] [2024-11-23 22:36:38,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:38,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:38,662 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:36:38,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:38,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197850149] [2024-11-23 22:36:38,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197850149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:38,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519015948] [2024-11-23 22:36:38,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:38,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:38,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:38,665 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:38,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-23 22:36:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:38,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 22:36:38,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:38,828 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:36:38,828 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:39,002 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:36:39,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519015948] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:36:39,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:36:39,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-23 22:36:39,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855313103] [2024-11-23 22:36:39,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:36:39,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 22:36:39,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:39,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 22:36:39,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:36:39,005 INFO L87 Difference]: Start difference. First operand 545 states and 702 transitions. Second operand has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-23 22:36:39,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:39,409 INFO L93 Difference]: Finished difference Result 1065 states and 1359 transitions. [2024-11-23 22:36:39,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 22:36:39,409 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 106 [2024-11-23 22:36:39,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:39,414 INFO L225 Difference]: With dead ends: 1065 [2024-11-23 22:36:39,414 INFO L226 Difference]: Without dead ends: 1063 [2024-11-23 22:36:39,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:36:39,415 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 445 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:39,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 432 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:36:39,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2024-11-23 22:36:39,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 705. [2024-11-23 22:36:39,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 605 states have (on average 1.2793388429752066) internal successors, (774), 619 states have internal predecessors, (774), 75 states have call successors, (75), 10 states have call predecessors, (75), 10 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-23 22:36:39,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 924 transitions. [2024-11-23 22:36:39,497 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 924 transitions. Word has length 106 [2024-11-23 22:36:39,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:39,498 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 924 transitions. [2024-11-23 22:36:39,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-23 22:36:39,498 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 924 transitions. [2024-11-23 22:36:39,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-23 22:36:39,499 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:39,500 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:39,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:39,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:39,700 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:39,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:39,701 INFO L85 PathProgramCache]: Analyzing trace with hash 932747090, now seen corresponding path program 2 times [2024-11-23 22:36:39,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:39,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059265815] [2024-11-23 22:36:39,701 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:36:39,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:39,756 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:36:39,756 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 22:36:39,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [644238823] [2024-11-23 22:36:39,762 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:36:39,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:39,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:39,765 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:39,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-23 22:36:39,852 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:36:39,852 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:36:39,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-23 22:36:39,859 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:40,702 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:36:40,703 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:41,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:41,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059265815] [2024-11-23 22:36:41,927 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:36:41,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644238823] [2024-11-23 22:36:41,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644238823] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:41,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:36:41,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-23 22:36:41,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850001357] [2024-11-23 22:36:41,927 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 22:36:41,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 22:36:41,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:41,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 22:36:41,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:36:41,929 INFO L87 Difference]: Start difference. First operand 705 states and 924 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-23 22:36:42,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:42,836 INFO L93 Difference]: Finished difference Result 733 states and 959 transitions. [2024-11-23 22:36:42,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 22:36:42,837 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 114 [2024-11-23 22:36:42,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:42,840 INFO L225 Difference]: With dead ends: 733 [2024-11-23 22:36:42,841 INFO L226 Difference]: Without dead ends: 732 [2024-11-23 22:36:42,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-23 22:36:42,843 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 34 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:42,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 545 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1003 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 22:36:42,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2024-11-23 22:36:42,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 705. [2024-11-23 22:36:42,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 605 states have (on average 1.2776859504132232) internal successors, (773), 619 states have internal predecessors, (773), 75 states have call successors, (75), 10 states have call predecessors, (75), 10 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-23 22:36:42,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 923 transitions. [2024-11-23 22:36:42,945 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 923 transitions. Word has length 114 [2024-11-23 22:36:42,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:42,946 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 923 transitions. [2024-11-23 22:36:42,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-23 22:36:42,946 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 923 transitions. [2024-11-23 22:36:42,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-23 22:36:42,948 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:42,949 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:42,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:43,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:43,150 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:43,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:43,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1074344237, now seen corresponding path program 1 times [2024-11-23 22:36:43,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:43,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831137333] [2024-11-23 22:36:43,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:43,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:43,296 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 10 proven. 37 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 22:36:43,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:43,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831137333] [2024-11-23 22:36:43,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831137333] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:43,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269593008] [2024-11-23 22:36:43,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:43,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:43,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:43,299 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:43,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-23 22:36:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:43,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 22:36:43,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:43,673 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2024-11-23 22:36:43,673 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:36:43,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269593008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:43,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:36:43,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-23 22:36:43,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361929936] [2024-11-23 22:36:43,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:43,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:36:43,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:43,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:36:43,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:36:43,675 INFO L87 Difference]: Start difference. First operand 705 states and 923 transitions. Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 22:36:43,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:43,816 INFO L93 Difference]: Finished difference Result 711 states and 925 transitions. [2024-11-23 22:36:43,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:36:43,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 127 [2024-11-23 22:36:43,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:43,820 INFO L225 Difference]: With dead ends: 711 [2024-11-23 22:36:43,820 INFO L226 Difference]: Without dead ends: 706 [2024-11-23 22:36:43,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:36:43,821 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 10 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:43,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 83 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:36:43,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-11-23 22:36:43,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 699. [2024-11-23 22:36:43,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 599 states have (on average 1.2520868113522539) internal successors, (750), 613 states have internal predecessors, (750), 75 states have call successors, (75), 10 states have call predecessors, (75), 10 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-23 22:36:43,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 900 transitions. [2024-11-23 22:36:43,929 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 900 transitions. Word has length 127 [2024-11-23 22:36:43,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:43,933 INFO L471 AbstractCegarLoop]: Abstraction has 699 states and 900 transitions. [2024-11-23 22:36:43,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 22:36:43,933 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 900 transitions. [2024-11-23 22:36:43,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-23 22:36:43,936 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:43,936 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:43,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-23 22:36:44,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:44,142 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:44,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:44,143 INFO L85 PathProgramCache]: Analyzing trace with hash 664453745, now seen corresponding path program 2 times [2024-11-23 22:36:44,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:44,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56317135] [2024-11-23 22:36:44,143 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:36:44,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:44,171 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:36:44,172 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:36:44,459 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 22:36:44,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:44,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56317135] [2024-11-23 22:36:44,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56317135] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:44,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944500410] [2024-11-23 22:36:44,460 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:36:44,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:44,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:44,462 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:44,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-23 22:36:44,553 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:36:44,553 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:36:44,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 22:36:44,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:44,698 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 22:36:44,699 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:44,909 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 22:36:44,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944500410] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:36:44,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:36:44,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2024-11-23 22:36:44,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713174686] [2024-11-23 22:36:44,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:36:44,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:36:44,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:44,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:36:44,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:36:44,913 INFO L87 Difference]: Start difference. First operand 699 states and 900 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2024-11-23 22:36:45,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:45,118 INFO L93 Difference]: Finished difference Result 722 states and 918 transitions. [2024-11-23 22:36:45,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:36:45,119 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 128 [2024-11-23 22:36:45,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:45,122 INFO L225 Difference]: With dead ends: 722 [2024-11-23 22:36:45,124 INFO L226 Difference]: Without dead ends: 715 [2024-11-23 22:36:45,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 251 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:36:45,125 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 70 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:45,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 260 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:36:45,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-11-23 22:36:45,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 699. [2024-11-23 22:36:45,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 599 states have (on average 1.2454090150250416) internal successors, (746), 613 states have internal predecessors, (746), 75 states have call successors, (75), 10 states have call predecessors, (75), 10 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-23 22:36:45,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 896 transitions. [2024-11-23 22:36:45,215 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 896 transitions. Word has length 128 [2024-11-23 22:36:45,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:45,215 INFO L471 AbstractCegarLoop]: Abstraction has 699 states and 896 transitions. [2024-11-23 22:36:45,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2024-11-23 22:36:45,216 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 896 transitions. [2024-11-23 22:36:45,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-23 22:36:45,218 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:45,218 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1] [2024-11-23 22:36:45,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:45,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:45,423 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:45,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:45,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1729782705, now seen corresponding path program 2 times [2024-11-23 22:36:45,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:45,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235519482] [2024-11-23 22:36:45,423 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:36:45,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:45,440 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:36:45,440 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:36:45,570 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-23 22:36:45,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:45,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235519482] [2024-11-23 22:36:45,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235519482] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:45,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005766605] [2024-11-23 22:36:45,570 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:36:45,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:45,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:45,573 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:45,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-23 22:36:45,650 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:36:45,650 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:36:45,652 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 22:36:45,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:45,782 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-23 22:36:45,783 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:45,984 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-23 22:36:45,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005766605] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:36:45,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:36:45,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-23 22:36:45,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650240962] [2024-11-23 22:36:45,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:36:45,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 22:36:45,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:45,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 22:36:45,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:36:45,987 INFO L87 Difference]: Start difference. First operand 699 states and 896 transitions. Second operand has 13 states, 12 states have (on average 10.166666666666666) internal successors, (122), 13 states have internal predecessors, (122), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2024-11-23 22:36:46,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:46,465 INFO L93 Difference]: Finished difference Result 1541 states and 2016 transitions. [2024-11-23 22:36:46,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 22:36:46,466 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.166666666666666) internal successors, (122), 13 states have internal predecessors, (122), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) Word has length 130 [2024-11-23 22:36:46,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:46,471 INFO L225 Difference]: With dead ends: 1541 [2024-11-23 22:36:46,471 INFO L226 Difference]: Without dead ends: 1539 [2024-11-23 22:36:46,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:36:46,473 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 474 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:46,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 506 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:36:46,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1539 states. [2024-11-23 22:36:46,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1539 to 725. [2024-11-23 22:36:46,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 619 states have (on average 1.235864297253635) internal successors, (765), 633 states have internal predecessors, (765), 81 states have call successors, (81), 10 states have call predecessors, (81), 10 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:36:46,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 927 transitions. [2024-11-23 22:36:46,552 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 927 transitions. Word has length 130 [2024-11-23 22:36:46,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:46,552 INFO L471 AbstractCegarLoop]: Abstraction has 725 states and 927 transitions. [2024-11-23 22:36:46,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.166666666666666) internal successors, (122), 13 states have internal predecessors, (122), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2024-11-23 22:36:46,552 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 927 transitions. [2024-11-23 22:36:46,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-23 22:36:46,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:46,554 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:46,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-23 22:36:46,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-23 22:36:46,755 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:46,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:46,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1726289507, now seen corresponding path program 1 times [2024-11-23 22:36:46,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:46,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316954871] [2024-11-23 22:36:46,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:46,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:47,024 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 22:36:47,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:47,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316954871] [2024-11-23 22:36:47,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316954871] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:47,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232185471] [2024-11-23 22:36:47,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:47,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:47,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:47,027 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:47,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-23 22:36:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:47,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 22:36:47,103 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:47,514 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 28 proven. 24 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 22:36:47,515 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:48,058 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 34 proven. 18 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 22:36:48,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232185471] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:36:48,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:36:48,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 19 [2024-11-23 22:36:48,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848639267] [2024-11-23 22:36:48,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:36:48,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-23 22:36:48,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:48,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-23 22:36:48,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2024-11-23 22:36:48,064 INFO L87 Difference]: Start difference. First operand 725 states and 927 transitions. Second operand has 20 states, 19 states have (on average 10.31578947368421) internal successors, (196), 20 states have internal predecessors, (196), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-23 22:36:49,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:49,039 INFO L93 Difference]: Finished difference Result 1024 states and 1312 transitions. [2024-11-23 22:36:49,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-23 22:36:49,039 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 10.31578947368421) internal successors, (196), 20 states have internal predecessors, (196), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 130 [2024-11-23 22:36:49,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:49,043 INFO L225 Difference]: With dead ends: 1024 [2024-11-23 22:36:49,044 INFO L226 Difference]: Without dead ends: 914 [2024-11-23 22:36:49,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=346, Invalid=914, Unknown=0, NotChecked=0, Total=1260 [2024-11-23 22:36:49,045 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 492 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:49,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 718 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 22:36:49,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2024-11-23 22:36:49,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 711. [2024-11-23 22:36:49,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 601 states have (on average 1.259567387687188) internal successors, (757), 615 states have internal predecessors, (757), 85 states have call successors, (85), 10 states have call predecessors, (85), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-23 22:36:49,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 927 transitions. [2024-11-23 22:36:49,135 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 927 transitions. Word has length 130 [2024-11-23 22:36:49,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:49,136 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 927 transitions. [2024-11-23 22:36:49,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 10.31578947368421) internal successors, (196), 20 states have internal predecessors, (196), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-23 22:36:49,137 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 927 transitions. [2024-11-23 22:36:49,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-23 22:36:49,139 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:49,139 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:49,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:49,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-23 22:36:49,344 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:49,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:49,345 INFO L85 PathProgramCache]: Analyzing trace with hash -397359431, now seen corresponding path program 1 times [2024-11-23 22:36:49,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:49,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807805637] [2024-11-23 22:36:49,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:49,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:49,648 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 21 proven. 21 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-23 22:36:49,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:49,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807805637] [2024-11-23 22:36:49,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807805637] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:49,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915794508] [2024-11-23 22:36:49,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:49,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:49,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:49,651 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:49,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-23 22:36:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:49,727 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 22:36:49,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:50,110 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 22:36:50,110 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:54,005 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 22:36:54,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915794508] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:36:54,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:36:54,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 8] total 20 [2024-11-23 22:36:54,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852019744] [2024-11-23 22:36:54,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:36:54,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-23 22:36:54,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:54,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-23 22:36:54,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2024-11-23 22:36:54,008 INFO L87 Difference]: Start difference. First operand 711 states and 927 transitions. Second operand has 21 states, 20 states have (on average 10.1) internal successors, (202), 21 states have internal predecessors, (202), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-23 22:36:54,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:54,725 INFO L93 Difference]: Finished difference Result 956 states and 1278 transitions. [2024-11-23 22:36:54,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 22:36:54,725 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 10.1) internal successors, (202), 21 states have internal predecessors, (202), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) Word has length 135 [2024-11-23 22:36:54,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:54,728 INFO L225 Difference]: With dead ends: 956 [2024-11-23 22:36:54,728 INFO L226 Difference]: Without dead ends: 955 [2024-11-23 22:36:54,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2024-11-23 22:36:54,729 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 532 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:54,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 373 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 22:36:54,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2024-11-23 22:36:54,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 710. [2024-11-23 22:36:54,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 601 states have (on average 1.2529118136439268) internal successors, (753), 614 states have internal predecessors, (753), 85 states have call successors, (85), 10 states have call predecessors, (85), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-23 22:36:54,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 923 transitions. [2024-11-23 22:36:54,813 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 923 transitions. Word has length 135 [2024-11-23 22:36:54,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:54,813 INFO L471 AbstractCegarLoop]: Abstraction has 710 states and 923 transitions. [2024-11-23 22:36:54,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 10.1) internal successors, (202), 21 states have internal predecessors, (202), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-23 22:36:54,814 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 923 transitions. [2024-11-23 22:36:54,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-23 22:36:54,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:54,815 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:54,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:55,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-23 22:36:55,016 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:55,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:55,017 INFO L85 PathProgramCache]: Analyzing trace with hash -397103227, now seen corresponding path program 1 times [2024-11-23 22:36:55,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:55,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796725233] [2024-11-23 22:36:55,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:55,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:55,328 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 22:36:55,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:55,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796725233] [2024-11-23 22:36:55,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796725233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:55,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514611848] [2024-11-23 22:36:55,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:55,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:55,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:55,331 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:55,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-23 22:36:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:55,405 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 22:36:55,410 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:55,792 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 6 proven. 320 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-23 22:36:55,792 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:56,246 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 6 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 22:36:56,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514611848] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:36:56,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:36:56,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 36 [2024-11-23 22:36:56,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410115446] [2024-11-23 22:36:56,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:36:56,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-23 22:36:56,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:56,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-23 22:36:56,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=1047, Unknown=0, NotChecked=0, Total=1332 [2024-11-23 22:36:56,248 INFO L87 Difference]: Start difference. First operand 710 states and 923 transitions. Second operand has 37 states, 36 states have (on average 6.222222222222222) internal successors, (224), 37 states have internal predecessors, (224), 15 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 15 states have call predecessors, (39), 15 states have call successors, (39) [2024-11-23 22:36:57,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:57,165 INFO L93 Difference]: Finished difference Result 2139 states and 2840 transitions. [2024-11-23 22:36:57,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-23 22:36:57,165 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 6.222222222222222) internal successors, (224), 37 states have internal predecessors, (224), 15 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 15 states have call predecessors, (39), 15 states have call successors, (39) Word has length 135 [2024-11-23 22:36:57,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:57,173 INFO L225 Difference]: With dead ends: 2139 [2024-11-23 22:36:57,173 INFO L226 Difference]: Without dead ends: 2131 [2024-11-23 22:36:57,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 776 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=926, Invalid=2980, Unknown=0, NotChecked=0, Total=3906 [2024-11-23 22:36:57,176 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 481 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:57,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 846 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:36:57,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2131 states. [2024-11-23 22:36:57,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2131 to 2036. [2024-11-23 22:36:57,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2036 states, 1796 states have (on average 1.2761692650334076) internal successors, (2292), 1809 states have internal predecessors, (2292), 209 states have call successors, (209), 17 states have call predecessors, (209), 17 states have return successors, (209), 209 states have call predecessors, (209), 209 states have call successors, (209) [2024-11-23 22:36:57,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2036 states to 2036 states and 2710 transitions. [2024-11-23 22:36:57,397 INFO L78 Accepts]: Start accepts. Automaton has 2036 states and 2710 transitions. Word has length 135 [2024-11-23 22:36:57,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:57,398 INFO L471 AbstractCegarLoop]: Abstraction has 2036 states and 2710 transitions. [2024-11-23 22:36:57,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 6.222222222222222) internal successors, (224), 37 states have internal predecessors, (224), 15 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 15 states have call predecessors, (39), 15 states have call successors, (39) [2024-11-23 22:36:57,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2036 states and 2710 transitions. [2024-11-23 22:36:57,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-23 22:36:57,401 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:57,401 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-23 22:36:57,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-23 22:36:57,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-23 22:36:57,605 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:36:57,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:57,605 INFO L85 PathProgramCache]: Analyzing trace with hash 566759647, now seen corresponding path program 1 times [2024-11-23 22:36:57,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:57,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116879855] [2024-11-23 22:36:57,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:57,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:57,921 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 22:36:57,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:57,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116879855] [2024-11-23 22:36:57,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116879855] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:57,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728887963] [2024-11-23 22:36:57,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:57,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:57,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:57,925 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:57,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-23 22:36:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:58,003 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 22:36:58,006 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:58,471 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 22:36:58,471 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:37:00,857 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 22:37:00,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728887963] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:37:00,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:37:00,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-11-23 22:37:00,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8964844] [2024-11-23 22:37:00,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:37:00,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-23 22:37:00,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:00,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-23 22:37:00,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=298, Unknown=0, NotChecked=0, Total=462 [2024-11-23 22:37:00,860 INFO L87 Difference]: Start difference. First operand 2036 states and 2710 transitions. Second operand has 22 states, 21 states have (on average 10.19047619047619) internal successors, (214), 22 states have internal predecessors, (214), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-23 22:37:02,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:02,726 INFO L93 Difference]: Finished difference Result 2840 states and 3773 transitions. [2024-11-23 22:37:02,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 22:37:02,727 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.19047619047619) internal successors, (214), 22 states have internal predecessors, (214), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 136 [2024-11-23 22:37:02,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:02,737 INFO L225 Difference]: With dead ends: 2840 [2024-11-23 22:37:02,737 INFO L226 Difference]: Without dead ends: 2839 [2024-11-23 22:37:02,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=397, Invalid=659, Unknown=0, NotChecked=0, Total=1056 [2024-11-23 22:37:02,739 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 488 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:02,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 738 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 22:37:02,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2839 states. [2024-11-23 22:37:02,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2839 to 2531. [2024-11-23 22:37:02,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2531 states, 2249 states have (on average 1.2738995108937305) internal successors, (2865), 2262 states have internal predecessors, (2865), 251 states have call successors, (251), 17 states have call predecessors, (251), 17 states have return successors, (251), 251 states have call predecessors, (251), 251 states have call successors, (251) [2024-11-23 22:37:02,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2531 states to 2531 states and 3367 transitions. [2024-11-23 22:37:02,984 INFO L78 Accepts]: Start accepts. Automaton has 2531 states and 3367 transitions. Word has length 136 [2024-11-23 22:37:02,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:02,984 INFO L471 AbstractCegarLoop]: Abstraction has 2531 states and 3367 transitions. [2024-11-23 22:37:02,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.19047619047619) internal successors, (214), 22 states have internal predecessors, (214), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-23 22:37:02,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2531 states and 3367 transitions. [2024-11-23 22:37:02,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-23 22:37:02,986 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:02,986 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:02,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-23 22:37:03,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-23 22:37:03,187 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:37:03,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:03,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1945923821, now seen corresponding path program 1 times [2024-11-23 22:37:03,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:03,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586530864] [2024-11-23 22:37:03,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:03,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:03,493 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 22:37:03,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:03,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586530864] [2024-11-23 22:37:03,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586530864] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:37:03,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733344405] [2024-11-23 22:37:03,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:03,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:37:03,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:37:03,496 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:37:03,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-23 22:37:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:03,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 22:37:03,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:37:03,804 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 388 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-23 22:37:03,805 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:37:04,202 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 22:37:04,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733344405] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:37:04,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:37:04,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 14] total 29 [2024-11-23 22:37:04,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090081255] [2024-11-23 22:37:04,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:37:04,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-23 22:37:04,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:04,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-23 22:37:04,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=617, Unknown=0, NotChecked=0, Total=812 [2024-11-23 22:37:04,206 INFO L87 Difference]: Start difference. First operand 2531 states and 3367 transitions. Second operand has 29 states, 29 states have (on average 5.413793103448276) internal successors, (157), 29 states have internal predecessors, (157), 10 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) [2024-11-23 22:37:05,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:05,160 INFO L93 Difference]: Finished difference Result 3171 states and 4159 transitions. [2024-11-23 22:37:05,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-23 22:37:05,161 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 5.413793103448276) internal successors, (157), 29 states have internal predecessors, (157), 10 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) Word has length 137 [2024-11-23 22:37:05,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:05,173 INFO L225 Difference]: With dead ends: 3171 [2024-11-23 22:37:05,173 INFO L226 Difference]: Without dead ends: 2686 [2024-11-23 22:37:05,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=694, Invalid=2386, Unknown=0, NotChecked=0, Total=3080 [2024-11-23 22:37:05,177 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 240 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:05,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 619 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:37:05,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2024-11-23 22:37:05,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 2661. [2024-11-23 22:37:05,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 2365 states have (on average 1.2634249471458774) internal successors, (2988), 2378 states have internal predecessors, (2988), 259 states have call successors, (259), 23 states have call predecessors, (259), 23 states have return successors, (259), 259 states have call predecessors, (259), 259 states have call successors, (259) [2024-11-23 22:37:05,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 3506 transitions. [2024-11-23 22:37:05,491 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 3506 transitions. Word has length 137 [2024-11-23 22:37:05,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:05,492 INFO L471 AbstractCegarLoop]: Abstraction has 2661 states and 3506 transitions. [2024-11-23 22:37:05,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 5.413793103448276) internal successors, (157), 29 states have internal predecessors, (157), 10 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) [2024-11-23 22:37:05,493 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 3506 transitions. [2024-11-23 22:37:05,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-23 22:37:05,497 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:05,497 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:05,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-23 22:37:05,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-23 22:37:05,701 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:37:05,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:05,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1846029681, now seen corresponding path program 3 times [2024-11-23 22:37:05,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:05,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233775601] [2024-11-23 22:37:05,701 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:37:05,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:05,755 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-23 22:37:05,759 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 22:37:05,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [260605136] [2024-11-23 22:37:05,761 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:37:05,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:37:05,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:37:05,768 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:37:05,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-23 22:37:05,825 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-23 22:37:05,826 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:37:05,827 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 22:37:05,830 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:37:06,580 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 39 proven. 8 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2024-11-23 22:37:06,580 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:37:36,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:36,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233775601] [2024-11-23 22:37:36,031 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:37:36,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260605136] [2024-11-23 22:37:36,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260605136] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:37:36,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:37:36,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-23 22:37:36,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960430395] [2024-11-23 22:37:36,032 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 22:37:36,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 22:37:36,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:36,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 22:37:36,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=175, Unknown=6, NotChecked=0, Total=240 [2024-11-23 22:37:36,033 INFO L87 Difference]: Start difference. First operand 2661 states and 3506 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 22:37:37,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:37,528 INFO L93 Difference]: Finished difference Result 2724 states and 3568 transitions. [2024-11-23 22:37:37,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 22:37:37,529 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 140 [2024-11-23 22:37:37,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:37,543 INFO L225 Difference]: With dead ends: 2724 [2024-11-23 22:37:37,544 INFO L226 Difference]: Without dead ends: 2723 [2024-11-23 22:37:37,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 28.6s TimeCoverageRelationStatistics Valid=99, Invalid=275, Unknown=6, NotChecked=0, Total=380 [2024-11-23 22:37:37,545 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 100 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:37,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 165 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 22:37:37,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2024-11-23 22:37:37,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 2661. [2024-11-23 22:37:37,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 2365 states have (on average 1.255813953488372) internal successors, (2970), 2378 states have internal predecessors, (2970), 259 states have call successors, (259), 23 states have call predecessors, (259), 23 states have return successors, (259), 259 states have call predecessors, (259), 259 states have call successors, (259) [2024-11-23 22:37:37,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 3488 transitions. [2024-11-23 22:37:37,858 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 3488 transitions. Word has length 140 [2024-11-23 22:37:37,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:37,859 INFO L471 AbstractCegarLoop]: Abstraction has 2661 states and 3488 transitions. [2024-11-23 22:37:37,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 22:37:37,859 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 3488 transitions. [2024-11-23 22:37:37,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-23 22:37:37,861 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:37,862 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-23 22:37:37,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-23 22:37:38,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:37:38,066 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:37:38,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:38,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1989932688, now seen corresponding path program 2 times [2024-11-23 22:37:38,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:38,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091761378] [2024-11-23 22:37:38,066 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:37:38,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:38,107 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:37:38,108 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 22:37:38,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [476596360] [2024-11-23 22:37:38,109 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:37:38,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:37:38,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:37:38,112 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:37:38,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-23 22:37:38,171 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 22:37:38,172 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:37:38,173 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 22:37:38,175 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:37:38,824 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2024-11-23 22:37:38,824 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:37:38,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:38,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091761378] [2024-11-23 22:37:38,825 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:37:38,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476596360] [2024-11-23 22:37:38,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476596360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:38,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:38,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 22:37:38,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249501459] [2024-11-23 22:37:38,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:38,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:37:38,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:38,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:37:38,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:37:38,827 INFO L87 Difference]: Start difference. First operand 2661 states and 3488 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 22:37:39,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:39,249 INFO L93 Difference]: Finished difference Result 2661 states and 3488 transitions. [2024-11-23 22:37:39,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:37:39,249 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 141 [2024-11-23 22:37:39,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:39,260 INFO L225 Difference]: With dead ends: 2661 [2024-11-23 22:37:39,261 INFO L226 Difference]: Without dead ends: 2660 [2024-11-23 22:37:39,262 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:37:39,263 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 80 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:39,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 80 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:37:39,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2660 states. [2024-11-23 22:37:39,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2660 to 2485. [2024-11-23 22:37:39,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2485 states, 2208 states have (on average 1.225090579710145) internal successors, (2705), 2220 states have internal predecessors, (2705), 241 states have call successors, (241), 23 states have call predecessors, (241), 23 states have return successors, (241), 241 states have call predecessors, (241), 241 states have call successors, (241) [2024-11-23 22:37:39,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2485 states to 2485 states and 3187 transitions. [2024-11-23 22:37:39,573 INFO L78 Accepts]: Start accepts. Automaton has 2485 states and 3187 transitions. Word has length 141 [2024-11-23 22:37:39,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:39,574 INFO L471 AbstractCegarLoop]: Abstraction has 2485 states and 3187 transitions. [2024-11-23 22:37:39,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 22:37:39,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2485 states and 3187 transitions. [2024-11-23 22:37:39,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-23 22:37:39,586 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:39,586 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-23 22:37:39,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-23 22:37:39,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-23 22:37:39,791 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:37:39,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:39,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1348963944, now seen corresponding path program 4 times [2024-11-23 22:37:39,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:39,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485032262] [2024-11-23 22:37:39,792 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 22:37:39,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:39,829 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 22:37:39,829 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:37:40,520 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 22:37:40,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:40,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485032262] [2024-11-23 22:37:40,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485032262] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:37:40,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952823788] [2024-11-23 22:37:40,521 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 22:37:40,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:37:40,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:37:40,524 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:37:40,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-23 22:37:40,616 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 22:37:40,616 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:37:40,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-23 22:37:40,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:37:43,108 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 22:37:43,109 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:37:43,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952823788] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:37:43,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:37:43,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 22 [2024-11-23 22:37:43,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200535107] [2024-11-23 22:37:43,953 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:37:43,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-23 22:37:43,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:43,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-23 22:37:43,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=563, Unknown=0, NotChecked=0, Total=650 [2024-11-23 22:37:43,955 INFO L87 Difference]: Start difference. First operand 2485 states and 3187 transitions. Second operand has 23 states, 22 states have (on average 7.2727272727272725) internal successors, (160), 23 states have internal predecessors, (160), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-23 22:37:47,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:47,001 INFO L93 Difference]: Finished difference Result 2609 states and 3339 transitions. [2024-11-23 22:37:47,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 22:37:47,002 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 7.2727272727272725) internal successors, (160), 23 states have internal predecessors, (160), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 144 [2024-11-23 22:37:47,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:47,008 INFO L225 Difference]: With dead ends: 2609 [2024-11-23 22:37:47,008 INFO L226 Difference]: Without dead ends: 2602 [2024-11-23 22:37:47,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=200, Invalid=1282, Unknown=0, NotChecked=0, Total=1482 [2024-11-23 22:37:47,010 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 264 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:47,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 767 Invalid, 1149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-23 22:37:47,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2024-11-23 22:37:47,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2486. [2024-11-23 22:37:47,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 2209 states have (on average 1.2236306020823902) internal successors, (2703), 2221 states have internal predecessors, (2703), 241 states have call successors, (241), 23 states have call predecessors, (241), 23 states have return successors, (241), 241 states have call predecessors, (241), 241 states have call successors, (241) [2024-11-23 22:37:47,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 3185 transitions. [2024-11-23 22:37:47,243 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 3185 transitions. Word has length 144 [2024-11-23 22:37:47,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:47,243 INFO L471 AbstractCegarLoop]: Abstraction has 2486 states and 3185 transitions. [2024-11-23 22:37:47,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 7.2727272727272725) internal successors, (160), 23 states have internal predecessors, (160), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-23 22:37:47,244 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 3185 transitions. [2024-11-23 22:37:47,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-23 22:37:47,245 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:47,245 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:47,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-23 22:37:47,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-23 22:37:47,446 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:37:47,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:47,446 INFO L85 PathProgramCache]: Analyzing trace with hash 736320963, now seen corresponding path program 1 times [2024-11-23 22:37:47,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:47,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640382402] [2024-11-23 22:37:47,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:47,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:47,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 22:37:47,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [126079718] [2024-11-23 22:37:47,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:47,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:37:47,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:37:47,469 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:37:47,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-23 22:37:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:47,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 22:37:47,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:37:48,105 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2024-11-23 22:37:48,106 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:37:48,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:48,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640382402] [2024-11-23 22:37:48,106 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:37:48,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126079718] [2024-11-23 22:37:48,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126079718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:48,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:48,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:37:48,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486251064] [2024-11-23 22:37:48,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:48,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:37:48,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:48,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:37:48,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:37:48,107 INFO L87 Difference]: Start difference. First operand 2486 states and 3185 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-23 22:37:48,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:48,374 INFO L93 Difference]: Finished difference Result 2493 states and 3191 transitions. [2024-11-23 22:37:48,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:37:48,375 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 147 [2024-11-23 22:37:48,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:48,382 INFO L225 Difference]: With dead ends: 2493 [2024-11-23 22:37:48,382 INFO L226 Difference]: Without dead ends: 2491 [2024-11-23 22:37:48,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:37:48,383 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 39 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:48,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 76 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:37:48,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2024-11-23 22:37:48,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 1936. [2024-11-23 22:37:48,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1936 states, 1713 states have (on average 1.1873905429071805) internal successors, (2034), 1723 states have internal predecessors, (2034), 189 states have call successors, (189), 23 states have call predecessors, (189), 23 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2024-11-23 22:37:48,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1936 states to 1936 states and 2412 transitions. [2024-11-23 22:37:48,612 INFO L78 Accepts]: Start accepts. Automaton has 1936 states and 2412 transitions. Word has length 147 [2024-11-23 22:37:48,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:48,612 INFO L471 AbstractCegarLoop]: Abstraction has 1936 states and 2412 transitions. [2024-11-23 22:37:48,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-23 22:37:48,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 2412 transitions. [2024-11-23 22:37:48,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-23 22:37:48,614 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:48,614 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:48,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-23 22:37:48,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-23 22:37:48,815 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:37:48,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:48,816 INFO L85 PathProgramCache]: Analyzing trace with hash 2141471629, now seen corresponding path program 1 times [2024-11-23 22:37:48,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:48,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219970208] [2024-11-23 22:37:48,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:48,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 22:37:48,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [855795994] [2024-11-23 22:37:48,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:48,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:37:48,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:37:48,860 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:37:48,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-23 22:37:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:48,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-23 22:37:48,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:37:50,601 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-23 22:37:50,601 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:37:51,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:51,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219970208] [2024-11-23 22:37:51,509 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:37:51,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855795994] [2024-11-23 22:37:51,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855795994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:37:51,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:37:51,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-23 22:37:51,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257073255] [2024-11-23 22:37:51,509 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 22:37:51,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 22:37:51,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:51,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 22:37:51,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2024-11-23 22:37:51,512 INFO L87 Difference]: Start difference. First operand 1936 states and 2412 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-23 22:37:53,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:53,381 INFO L93 Difference]: Finished difference Result 1938 states and 2413 transitions. [2024-11-23 22:37:53,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 22:37:53,381 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 154 [2024-11-23 22:37:53,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:53,388 INFO L225 Difference]: With dead ends: 1938 [2024-11-23 22:37:53,389 INFO L226 Difference]: Without dead ends: 1936 [2024-11-23 22:37:53,390 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2024-11-23 22:37:53,390 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 14 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:53,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 463 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 22:37:53,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2024-11-23 22:37:53,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1936. [2024-11-23 22:37:53,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1936 states, 1713 states have (on average 1.1868067717454758) internal successors, (2033), 1723 states have internal predecessors, (2033), 189 states have call successors, (189), 23 states have call predecessors, (189), 23 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2024-11-23 22:37:53,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1936 states to 1936 states and 2411 transitions. [2024-11-23 22:37:53,575 INFO L78 Accepts]: Start accepts. Automaton has 1936 states and 2411 transitions. Word has length 154 [2024-11-23 22:37:53,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:53,576 INFO L471 AbstractCegarLoop]: Abstraction has 1936 states and 2411 transitions. [2024-11-23 22:37:53,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-23 22:37:53,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 2411 transitions. [2024-11-23 22:37:53,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-23 22:37:53,578 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:53,578 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-23 22:37:53,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-23 22:37:53,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-23 22:37:53,782 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:37:53,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:53,782 INFO L85 PathProgramCache]: Analyzing trace with hash 742955783, now seen corresponding path program 3 times [2024-11-23 22:37:53,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:53,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799117206] [2024-11-23 22:37:53,782 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:37:53,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:53,831 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-23 22:37:53,833 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 22:37:53,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [291638029] [2024-11-23 22:37:53,835 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:37:53,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:37:53,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:37:53,837 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:37:53,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-23 22:37:53,914 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-23 22:37:53,914 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:37:53,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-23 22:37:53,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:37:55,487 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 120 proven. 50 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2024-11-23 22:37:55,488 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:37:55,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:55,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799117206] [2024-11-23 22:37:55,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:37:55,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291638029] [2024-11-23 22:37:55,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291638029] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:37:55,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:37:55,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-23 22:37:55,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877416807] [2024-11-23 22:37:55,927 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 22:37:55,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 22:37:55,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:55,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 22:37:55,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:37:55,928 INFO L87 Difference]: Start difference. First operand 1936 states and 2411 transitions. Second operand has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-23 22:37:57,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:57,844 INFO L93 Difference]: Finished difference Result 1998 states and 2477 transitions. [2024-11-23 22:37:57,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-23 22:37:57,845 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 158 [2024-11-23 22:37:57,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:57,849 INFO L225 Difference]: With dead ends: 1998 [2024-11-23 22:37:57,849 INFO L226 Difference]: Without dead ends: 1996 [2024-11-23 22:37:57,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2024-11-23 22:37:57,850 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 228 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:57,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 370 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 22:37:57,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1996 states. [2024-11-23 22:37:58,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1996 to 1936. [2024-11-23 22:37:58,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1936 states, 1713 states have (on average 1.186223000583771) internal successors, (2032), 1723 states have internal predecessors, (2032), 189 states have call successors, (189), 23 states have call predecessors, (189), 23 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2024-11-23 22:37:58,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1936 states to 1936 states and 2410 transitions. [2024-11-23 22:37:58,133 INFO L78 Accepts]: Start accepts. Automaton has 1936 states and 2410 transitions. Word has length 158 [2024-11-23 22:37:58,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:58,134 INFO L471 AbstractCegarLoop]: Abstraction has 1936 states and 2410 transitions. [2024-11-23 22:37:58,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-23 22:37:58,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 2410 transitions. [2024-11-23 22:37:58,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-23 22:37:58,136 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:58,136 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-23 22:37:58,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-23 22:37:58,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:37:58,337 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:37:58,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:58,338 INFO L85 PathProgramCache]: Analyzing trace with hash 218002803, now seen corresponding path program 1 times [2024-11-23 22:37:58,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:58,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263958427] [2024-11-23 22:37:58,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:58,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:58,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:59,361 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-23 22:37:59,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:59,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263958427] [2024-11-23 22:37:59,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263958427] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:37:59,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128934861] [2024-11-23 22:37:59,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:59,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:37:59,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:37:59,364 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:37:59,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-23 22:37:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:59,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-23 22:37:59,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:38:01,579 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-23 22:38:01,579 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:38:10,366 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-23 22:38:10,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128934861] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:38:10,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:38:10,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 8] total 31 [2024-11-23 22:38:10,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697508401] [2024-11-23 22:38:10,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:38:10,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-23 22:38:10,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:38:10,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-23 22:38:10,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=820, Unknown=0, NotChecked=0, Total=992 [2024-11-23 22:38:10,369 INFO L87 Difference]: Start difference. First operand 1936 states and 2410 transitions. Second operand has 32 states, 31 states have (on average 8.64516129032258) internal successors, (268), 32 states have internal predecessors, (268), 16 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 16 states have call predecessors, (45), 16 states have call successors, (45) [2024-11-23 22:38:16,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:38:16,502 INFO L93 Difference]: Finished difference Result 2219 states and 2774 transitions. [2024-11-23 22:38:16,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-23 22:38:16,503 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 8.64516129032258) internal successors, (268), 32 states have internal predecessors, (268), 16 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 16 states have call predecessors, (45), 16 states have call successors, (45) Word has length 164 [2024-11-23 22:38:16,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:38:16,509 INFO L225 Difference]: With dead ends: 2219 [2024-11-23 22:38:16,509 INFO L226 Difference]: Without dead ends: 2217 [2024-11-23 22:38:16,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 308 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=559, Invalid=1697, Unknown=0, NotChecked=0, Total=2256 [2024-11-23 22:38:16,511 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 880 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:38:16,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 1171 Invalid, 1577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-23 22:38:16,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2217 states. [2024-11-23 22:38:16,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2217 to 1951. [2024-11-23 22:38:16,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1951 states, 1741 states have (on average 1.1522113727742678) internal successors, (2006), 1750 states have internal predecessors, (2006), 177 states have call successors, (177), 23 states have call predecessors, (177), 23 states have return successors, (177), 177 states have call predecessors, (177), 177 states have call successors, (177) [2024-11-23 22:38:16,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1951 states to 1951 states and 2360 transitions. [2024-11-23 22:38:16,873 INFO L78 Accepts]: Start accepts. Automaton has 1951 states and 2360 transitions. Word has length 164 [2024-11-23 22:38:16,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:38:16,873 INFO L471 AbstractCegarLoop]: Abstraction has 1951 states and 2360 transitions. [2024-11-23 22:38:16,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 8.64516129032258) internal successors, (268), 32 states have internal predecessors, (268), 16 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 16 states have call predecessors, (45), 16 states have call successors, (45) [2024-11-23 22:38:16,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1951 states and 2360 transitions. [2024-11-23 22:38:16,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-23 22:38:16,875 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:38:16,876 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-23 22:38:16,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-11-23 22:38:17,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-23 22:38:17,076 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:38:17,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:38:17,077 INFO L85 PathProgramCache]: Analyzing trace with hash 472203493, now seen corresponding path program 5 times [2024-11-23 22:38:17,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:38:17,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8740837] [2024-11-23 22:38:17,077 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 22:38:17,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:38:17,137 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-23 22:38:17,137 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 22:38:17,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [512248853] [2024-11-23 22:38:17,139 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 22:38:17,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:38:17,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:38:17,141 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:38:17,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-23 22:38:17,254 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-23 22:38:17,255 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:38:17,256 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-23 22:38:17,259 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:38:20,478 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 22:38:20,478 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:38:26,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:38:26,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8740837] [2024-11-23 22:38:26,143 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:38:26,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512248853] [2024-11-23 22:38:26,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512248853] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:38:26,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:38:26,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-23 22:38:26,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963492461] [2024-11-23 22:38:26,143 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 22:38:26,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-23 22:38:26,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:38:26,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-23 22:38:26,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=455, Unknown=1, NotChecked=0, Total=552 [2024-11-23 22:38:26,145 INFO L87 Difference]: Start difference. First operand 1951 states and 2360 transitions. Second operand has 19 states, 18 states have (on average 5.166666666666667) internal successors, (93), 19 states have internal predecessors, (93), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-23 22:38:30,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:38:30,032 INFO L93 Difference]: Finished difference Result 2035 states and 2465 transitions. [2024-11-23 22:38:30,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 22:38:30,033 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.166666666666667) internal successors, (93), 19 states have internal predecessors, (93), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 170 [2024-11-23 22:38:30,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:38:30,038 INFO L225 Difference]: With dead ends: 2035 [2024-11-23 22:38:30,038 INFO L226 Difference]: Without dead ends: 2033 [2024-11-23 22:38:30,039 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=96, Invalid=455, Unknown=1, NotChecked=0, Total=552 [2024-11-23 22:38:30,040 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 60 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 1793 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:38:30,040 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 921 Invalid, 1797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1793 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-23 22:38:30,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2033 states. [2024-11-23 22:38:30,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2033 to 1957. [2024-11-23 22:38:30,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1957 states, 1745 states have (on average 1.151862464183381) internal successors, (2010), 1754 states have internal predecessors, (2010), 179 states have call successors, (179), 23 states have call predecessors, (179), 23 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2024-11-23 22:38:30,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1957 states to 1957 states and 2368 transitions. [2024-11-23 22:38:30,375 INFO L78 Accepts]: Start accepts. Automaton has 1957 states and 2368 transitions. Word has length 170 [2024-11-23 22:38:30,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:38:30,376 INFO L471 AbstractCegarLoop]: Abstraction has 1957 states and 2368 transitions. [2024-11-23 22:38:30,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.166666666666667) internal successors, (93), 19 states have internal predecessors, (93), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-23 22:38:30,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1957 states and 2368 transitions. [2024-11-23 22:38:30,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-23 22:38:30,378 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:38:30,378 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-23 22:38:30,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-11-23 22:38:30,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:38:30,579 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:38:30,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:38:30,580 INFO L85 PathProgramCache]: Analyzing trace with hash -505194620, now seen corresponding path program 1 times [2024-11-23 22:38:30,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:38:30,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611468538] [2024-11-23 22:38:30,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:30,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:38:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:38:31,395 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 6 proven. 110 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-23 22:38:31,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:38:31,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611468538] [2024-11-23 22:38:31,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611468538] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:38:31,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129519567] [2024-11-23 22:38:31,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:31,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:38:31,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:38:31,401 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:38:31,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-23 22:38:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:38:31,494 INFO L256 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 22:38:31,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:38:34,233 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 18 proven. 98 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-23 22:38:34,233 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:38:35,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129519567] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:38:35,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:38:35,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2024-11-23 22:38:35,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89597496] [2024-11-23 22:38:35,228 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:38:35,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-23 22:38:35,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:38:35,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-23 22:38:35,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2024-11-23 22:38:35,230 INFO L87 Difference]: Start difference. First operand 1957 states and 2368 transitions. Second operand has 25 states, 24 states have (on average 8.0) internal successors, (192), 25 states have internal predecessors, (192), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2024-11-23 22:38:40,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:38:40,101 INFO L93 Difference]: Finished difference Result 2566 states and 3150 transitions. [2024-11-23 22:38:40,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-23 22:38:40,102 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 8.0) internal successors, (192), 25 states have internal predecessors, (192), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) Word has length 170 [2024-11-23 22:38:40,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:38:40,109 INFO L225 Difference]: With dead ends: 2566 [2024-11-23 22:38:40,109 INFO L226 Difference]: Without dead ends: 2565 [2024-11-23 22:38:40,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=431, Invalid=2221, Unknown=0, NotChecked=0, Total=2652 [2024-11-23 22:38:40,111 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 765 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:38:40,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 974 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-23 22:38:40,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2024-11-23 22:38:40,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 2062. [2024-11-23 22:38:40,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2062 states, 1840 states have (on average 1.1483695652173913) internal successors, (2113), 1849 states have internal predecessors, (2113), 189 states have call successors, (189), 23 states have call predecessors, (189), 23 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2024-11-23 22:38:40,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 2491 transitions. [2024-11-23 22:38:40,468 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 2491 transitions. Word has length 170 [2024-11-23 22:38:40,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:38:40,469 INFO L471 AbstractCegarLoop]: Abstraction has 2062 states and 2491 transitions. [2024-11-23 22:38:40,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 8.0) internal successors, (192), 25 states have internal predecessors, (192), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2024-11-23 22:38:40,469 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 2491 transitions. [2024-11-23 22:38:40,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-23 22:38:40,471 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:38:40,472 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:38:40,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-11-23 22:38:40,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-23 22:38:40,680 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:38:40,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:38:40,681 INFO L85 PathProgramCache]: Analyzing trace with hash 666958840, now seen corresponding path program 1 times [2024-11-23 22:38:40,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:38:40,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154400132] [2024-11-23 22:38:40,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:40,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:38:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:38:41,054 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 34 proven. 82 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:38:41,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:38:41,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154400132] [2024-11-23 22:38:41,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154400132] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:38:41,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120934566] [2024-11-23 22:38:41,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:41,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:38:41,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:38:41,058 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:38:41,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-23 22:38:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:38:41,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 22:38:41,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:38:41,734 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 72 proven. 44 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:38:41,734 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:38:42,457 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 72 proven. 44 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:38:42,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120934566] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:38:42,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:38:42,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2024-11-23 22:38:42,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455324102] [2024-11-23 22:38:42,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:38:42,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:38:42,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:38:42,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:38:42,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:38:42,459 INFO L87 Difference]: Start difference. First operand 2062 states and 2491 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-23 22:38:42,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:38:42,988 INFO L93 Difference]: Finished difference Result 2090 states and 2512 transitions. [2024-11-23 22:38:42,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:38:42,988 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 181 [2024-11-23 22:38:42,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:38:42,995 INFO L225 Difference]: With dead ends: 2090 [2024-11-23 22:38:42,995 INFO L226 Difference]: Without dead ends: 2084 [2024-11-23 22:38:42,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 357 SyntacticMatches, 8 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:38:42,996 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 64 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:38:42,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 413 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:38:42,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2084 states. [2024-11-23 22:38:43,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2084 to 2062. [2024-11-23 22:38:43,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2062 states, 1840 states have (on average 1.1445652173913043) internal successors, (2106), 1849 states have internal predecessors, (2106), 189 states have call successors, (189), 23 states have call predecessors, (189), 23 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2024-11-23 22:38:43,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 2484 transitions. [2024-11-23 22:38:43,343 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 2484 transitions. Word has length 181 [2024-11-23 22:38:43,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:38:43,344 INFO L471 AbstractCegarLoop]: Abstraction has 2062 states and 2484 transitions. [2024-11-23 22:38:43,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-23 22:38:43,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 2484 transitions. [2024-11-23 22:38:43,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-23 22:38:43,346 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:38:43,346 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:38:43,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-23 22:38:43,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:38:43,551 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:38:43,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:38:43,552 INFO L85 PathProgramCache]: Analyzing trace with hash 181328889, now seen corresponding path program 2 times [2024-11-23 22:38:43,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:38:43,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626183008] [2024-11-23 22:38:43,552 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:38:43,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:38:43,572 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:38:43,572 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:38:44,070 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 49 proven. 78 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-23 22:38:44,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:38:44,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626183008] [2024-11-23 22:38:44,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626183008] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:38:44,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71678426] [2024-11-23 22:38:44,070 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:38:44,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:38:44,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:38:44,074 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:38:44,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-23 22:38:44,170 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:38:44,171 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:38:44,173 INFO L256 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 22:38:44,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:38:45,426 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 162 proven. 85 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-23 22:38:45,426 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:38:49,976 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 57 proven. 70 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-23 22:38:49,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71678426] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:38:49,976 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:38:49,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 10] total 23 [2024-11-23 22:38:49,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314151589] [2024-11-23 22:38:49,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:38:49,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-23 22:38:49,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:38:49,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-23 22:38:49,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2024-11-23 22:38:49,978 INFO L87 Difference]: Start difference. First operand 2062 states and 2484 transitions. Second operand has 23 states, 23 states have (on average 11.565217391304348) internal successors, (266), 23 states have internal predecessors, (266), 14 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 14 states have call predecessors, (49), 14 states have call successors, (49) [2024-11-23 22:38:52,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:38:52,674 INFO L93 Difference]: Finished difference Result 2319 states and 2794 transitions. [2024-11-23 22:38:52,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 22:38:52,674 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 11.565217391304348) internal successors, (266), 23 states have internal predecessors, (266), 14 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 14 states have call predecessors, (49), 14 states have call successors, (49) Word has length 181 [2024-11-23 22:38:52,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:38:52,677 INFO L225 Difference]: With dead ends: 2319 [2024-11-23 22:38:52,677 INFO L226 Difference]: Without dead ends: 743 [2024-11-23 22:38:52,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=263, Invalid=1143, Unknown=0, NotChecked=0, Total=1406 [2024-11-23 22:38:52,680 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 92 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-23 22:38:52,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 735 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-23 22:38:52,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2024-11-23 22:38:52,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 743. [2024-11-23 22:38:52,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 643 states have (on average 1.1415241057542769) internal successors, (734), 652 states have internal predecessors, (734), 71 states have call successors, (71), 19 states have call predecessors, (71), 19 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-23 22:38:52,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 876 transitions. [2024-11-23 22:38:52,779 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 876 transitions. Word has length 181 [2024-11-23 22:38:52,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:38:52,780 INFO L471 AbstractCegarLoop]: Abstraction has 743 states and 876 transitions. [2024-11-23 22:38:52,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.565217391304348) internal successors, (266), 23 states have internal predecessors, (266), 14 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 14 states have call predecessors, (49), 14 states have call successors, (49) [2024-11-23 22:38:52,780 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 876 transitions. [2024-11-23 22:38:52,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-23 22:38:52,782 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:38:52,782 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-23 22:38:52,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-11-23 22:38:52,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2024-11-23 22:38:52,986 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:38:52,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:38:52,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1723224343, now seen corresponding path program 1 times [2024-11-23 22:38:52,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:38:52,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620712769] [2024-11-23 22:38:52,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:52,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:38:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:38:53,440 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 38 proven. 84 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:38:53,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:38:53,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620712769] [2024-11-23 22:38:53,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620712769] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:38:53,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738465362] [2024-11-23 22:38:53,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:53,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:38:53,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:38:53,446 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:38:53,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-23 22:38:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:38:53,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:38:53,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:38:54,009 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 698 trivial. 0 not checked. [2024-11-23 22:38:54,009 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:38:54,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738465362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:38:54,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:38:54,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-23 22:38:54,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179891073] [2024-11-23 22:38:54,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:38:54,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:38:54,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:38:54,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:38:54,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:38:54,014 INFO L87 Difference]: Start difference. First operand 743 states and 876 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-23 22:38:54,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:38:54,347 INFO L93 Difference]: Finished difference Result 743 states and 876 transitions. [2024-11-23 22:38:54,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:38:54,348 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 184 [2024-11-23 22:38:54,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:38:54,350 INFO L225 Difference]: With dead ends: 743 [2024-11-23 22:38:54,350 INFO L226 Difference]: Without dead ends: 742 [2024-11-23 22:38:54,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 184 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:38:54,351 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 41 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:38:54,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 103 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:38:54,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2024-11-23 22:38:54,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 728. [2024-11-23 22:38:54,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 631 states have (on average 1.1299524564183836) internal successors, (713), 639 states have internal predecessors, (713), 69 states have call successors, (69), 19 states have call predecessors, (69), 19 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-23 22:38:54,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 851 transitions. [2024-11-23 22:38:54,495 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 851 transitions. Word has length 184 [2024-11-23 22:38:54,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:38:54,495 INFO L471 AbstractCegarLoop]: Abstraction has 728 states and 851 transitions. [2024-11-23 22:38:54,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-23 22:38:54,496 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 851 transitions. [2024-11-23 22:38:54,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-23 22:38:54,497 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:38:54,497 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-23 22:38:54,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-11-23 22:38:54,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:38:54,697 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:38:54,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:38:54,698 INFO L85 PathProgramCache]: Analyzing trace with hash 786670392, now seen corresponding path program 1 times [2024-11-23 22:38:54,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:38:54,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889165216] [2024-11-23 22:38:54,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:54,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:38:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:38:55,593 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:38:55,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:38:55,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889165216] [2024-11-23 22:38:55,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889165216] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:38:55,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464467231] [2024-11-23 22:38:55,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:55,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:38:55,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:38:55,595 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:38:55,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-23 22:38:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:38:55,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-23 22:38:55,690 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:38:57,464 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:38:57,464 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:39:07,806 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:39:07,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464467231] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:39:07,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:39:07,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 8] total 29 [2024-11-23 22:39:07,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752440366] [2024-11-23 22:39:07,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:39:07,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-23 22:39:07,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:39:07,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-23 22:39:07,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=593, Unknown=0, NotChecked=0, Total=870 [2024-11-23 22:39:07,809 INFO L87 Difference]: Start difference. First operand 728 states and 851 transitions. Second operand has 30 states, 29 states have (on average 10.172413793103448) internal successors, (295), 30 states have internal predecessors, (295), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) [2024-11-23 22:39:17,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:39:17,973 INFO L93 Difference]: Finished difference Result 1503 states and 1819 transitions. [2024-11-23 22:39:17,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-23 22:39:17,974 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 10.172413793103448) internal successors, (295), 30 states have internal predecessors, (295), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) Word has length 188 [2024-11-23 22:39:17,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:39:17,976 INFO L225 Difference]: With dead ends: 1503 [2024-11-23 22:39:17,976 INFO L226 Difference]: Without dead ends: 1502 [2024-11-23 22:39:17,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 960 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=1072, Invalid=1898, Unknown=0, NotChecked=0, Total=2970 [2024-11-23 22:39:17,977 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 835 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 1564 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:39:17,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 1192 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1564 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-23 22:39:17,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2024-11-23 22:39:18,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1225. [2024-11-23 22:39:18,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 1080 states have (on average 1.1472222222222221) internal successors, (1239), 1088 states have internal predecessors, (1239), 117 states have call successors, (117), 19 states have call predecessors, (117), 19 states have return successors, (117), 117 states have call predecessors, (117), 117 states have call successors, (117) [2024-11-23 22:39:18,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1473 transitions. [2024-11-23 22:39:18,238 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1473 transitions. Word has length 188 [2024-11-23 22:39:18,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:39:18,238 INFO L471 AbstractCegarLoop]: Abstraction has 1225 states and 1473 transitions. [2024-11-23 22:39:18,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 10.172413793103448) internal successors, (295), 30 states have internal predecessors, (295), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) [2024-11-23 22:39:18,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1473 transitions. [2024-11-23 22:39:18,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-23 22:39:18,240 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:39:18,240 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:39:18,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-11-23 22:39:18,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:39:18,441 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:39:18,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:39:18,441 INFO L85 PathProgramCache]: Analyzing trace with hash 858461978, now seen corresponding path program 1 times [2024-11-23 22:39:18,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:39:18,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220839331] [2024-11-23 22:39:18,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:39:18,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:39:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:39:19,375 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-23 22:39:19,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:39:19,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220839331] [2024-11-23 22:39:19,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220839331] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:39:19,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601960040] [2024-11-23 22:39:19,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:39:19,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:39:19,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:39:19,379 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:39:19,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-23 22:39:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:39:19,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-23 22:39:19,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:39:20,512 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 0 proven. 766 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-23 22:39:20,513 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:39:22,448 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-23 22:39:22,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601960040] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:39:22,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:39:22,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 18] total 37 [2024-11-23 22:39:22,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029880019] [2024-11-23 22:39:22,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:39:22,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-23 22:39:22,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:39:22,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-23 22:39:22,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=1029, Unknown=0, NotChecked=0, Total=1332 [2024-11-23 22:39:22,452 INFO L87 Difference]: Start difference. First operand 1225 states and 1473 transitions. Second operand has 37 states, 37 states have (on average 5.864864864864865) internal successors, (217), 37 states have internal predecessors, (217), 14 states have call successors, (57), 8 states have call predecessors, (57), 8 states have return successors, (57), 14 states have call predecessors, (57), 14 states have call successors, (57) [2024-11-23 22:39:26,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:39:26,249 INFO L93 Difference]: Finished difference Result 1700 states and 2011 transitions. [2024-11-23 22:39:26,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-23 22:39:26,250 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 5.864864864864865) internal successors, (217), 37 states have internal predecessors, (217), 14 states have call successors, (57), 8 states have call predecessors, (57), 8 states have return successors, (57), 14 states have call predecessors, (57), 14 states have call successors, (57) Word has length 189 [2024-11-23 22:39:26,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:39:26,255 INFO L225 Difference]: With dead ends: 1700 [2024-11-23 22:39:26,256 INFO L226 Difference]: Without dead ends: 1495 [2024-11-23 22:39:26,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1386 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1151, Invalid=4105, Unknown=0, NotChecked=0, Total=5256 [2024-11-23 22:39:26,259 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 283 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:39:26,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 710 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 22:39:26,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2024-11-23 22:39:26,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1464. [2024-11-23 22:39:26,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1294 states have (on average 1.1267387944358578) internal successors, (1458), 1302 states have internal predecessors, (1458), 133 states have call successors, (133), 28 states have call predecessors, (133), 28 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2024-11-23 22:39:26,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 1724 transitions. [2024-11-23 22:39:26,580 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 1724 transitions. Word has length 189 [2024-11-23 22:39:26,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:39:26,581 INFO L471 AbstractCegarLoop]: Abstraction has 1464 states and 1724 transitions. [2024-11-23 22:39:26,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 5.864864864864865) internal successors, (217), 37 states have internal predecessors, (217), 14 states have call successors, (57), 8 states have call predecessors, (57), 8 states have return successors, (57), 14 states have call predecessors, (57), 14 states have call successors, (57) [2024-11-23 22:39:26,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 1724 transitions. [2024-11-23 22:39:26,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-23 22:39:26,582 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:39:26,582 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-23 22:39:26,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-11-23 22:39:26,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:39:26,783 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:39:26,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:39:26,783 INFO L85 PathProgramCache]: Analyzing trace with hash -539123422, now seen corresponding path program 6 times [2024-11-23 22:39:26,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:39:26,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953132131] [2024-11-23 22:39:26,784 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 22:39:26,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:39:26,828 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-23 22:39:26,828 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 22:39:26,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1303403603] [2024-11-23 22:39:26,830 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 22:39:26,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:39:26,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:39:26,837 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:39:26,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-23 22:39:26,934 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-11-23 22:39:26,934 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:39:26,936 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-23 22:39:26,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:39:30,892 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 106 proven. 38 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2024-11-23 22:39:30,892 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:39:33,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:39:33,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953132131] [2024-11-23 22:39:33,808 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:39:33,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303403603] [2024-11-23 22:39:33,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303403603] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:39:33,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:39:33,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-23 22:39:33,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950583192] [2024-11-23 22:39:33,808 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 22:39:33,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 22:39:33,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:39:33,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 22:39:33,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2024-11-23 22:39:33,810 INFO L87 Difference]: Start difference. First operand 1464 states and 1724 transitions. Second operand has 17 states, 16 states have (on average 4.9375) internal successors, (79), 17 states have internal predecessors, (79), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-23 22:39:38,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:39:38,378 INFO L93 Difference]: Finished difference Result 1746 states and 2073 transitions. [2024-11-23 22:39:38,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 22:39:38,378 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.9375) internal successors, (79), 17 states have internal predecessors, (79), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 196 [2024-11-23 22:39:38,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:39:38,384 INFO L225 Difference]: With dead ends: 1746 [2024-11-23 22:39:38,384 INFO L226 Difference]: Without dead ends: 1744 [2024-11-23 22:39:38,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=139, Invalid=563, Unknown=0, NotChecked=0, Total=702 [2024-11-23 22:39:38,386 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 75 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:39:38,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 716 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-23 22:39:38,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2024-11-23 22:39:38,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1500. [2024-11-23 22:39:38,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1326 states have (on average 1.1244343891402715) internal successors, (1491), 1334 states have internal predecessors, (1491), 137 states have call successors, (137), 28 states have call predecessors, (137), 28 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-23 22:39:38,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1765 transitions. [2024-11-23 22:39:38,932 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1765 transitions. Word has length 196 [2024-11-23 22:39:38,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:39:38,932 INFO L471 AbstractCegarLoop]: Abstraction has 1500 states and 1765 transitions. [2024-11-23 22:39:38,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.9375) internal successors, (79), 17 states have internal predecessors, (79), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-23 22:39:38,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1765 transitions. [2024-11-23 22:39:38,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-23 22:39:38,935 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:39:38,935 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-23 22:39:38,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-11-23 22:39:39,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:39:39,136 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:39:39,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:39:39,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1516521535, now seen corresponding path program 2 times [2024-11-23 22:39:39,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:39:39,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491118637] [2024-11-23 22:39:39,136 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:39:39,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:39:39,161 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:39:39,162 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:39:40,128 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 6 proven. 148 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:39:40,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:39:40,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491118637] [2024-11-23 22:39:40,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491118637] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:39:40,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438548174] [2024-11-23 22:39:40,128 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:39:40,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:39:40,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:39:40,133 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:39:40,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-23 22:39:40,239 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:39:40,239 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:39:40,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-23 22:39:40,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:39:43,416 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:39:43,416 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:39:44,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438548174] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:39:44,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:39:44,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2024-11-23 22:39:44,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698111707] [2024-11-23 22:39:44,356 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:39:44,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-23 22:39:44,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:39:44,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-23 22:39:44,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=792, Unknown=0, NotChecked=0, Total=930 [2024-11-23 22:39:44,358 INFO L87 Difference]: Start difference. First operand 1500 states and 1765 transitions. Second operand has 28 states, 27 states have (on average 7.925925925925926) internal successors, (214), 28 states have internal predecessors, (214), 14 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) [2024-11-23 22:39:50,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:39:50,376 INFO L93 Difference]: Finished difference Result 1855 states and 2209 transitions. [2024-11-23 22:39:50,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-23 22:39:50,376 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 7.925925925925926) internal successors, (214), 28 states have internal predecessors, (214), 14 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) Word has length 196 [2024-11-23 22:39:50,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:39:50,379 INFO L225 Difference]: With dead ends: 1855 [2024-11-23 22:39:50,380 INFO L226 Difference]: Without dead ends: 1844 [2024-11-23 22:39:50,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 198 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1059 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=734, Invalid=3172, Unknown=0, NotChecked=0, Total=3906 [2024-11-23 22:39:50,381 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 959 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:39:50,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 1213 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-23 22:39:50,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2024-11-23 22:39:50,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1590. [2024-11-23 22:39:50,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1410 states have (on average 1.1205673758865249) internal successors, (1580), 1418 states have internal predecessors, (1580), 143 states have call successors, (143), 28 states have call predecessors, (143), 28 states have return successors, (143), 143 states have call predecessors, (143), 143 states have call successors, (143) [2024-11-23 22:39:50,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 1866 transitions. [2024-11-23 22:39:50,788 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 1866 transitions. Word has length 196 [2024-11-23 22:39:50,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:39:50,789 INFO L471 AbstractCegarLoop]: Abstraction has 1590 states and 1866 transitions. [2024-11-23 22:39:50,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 7.925925925925926) internal successors, (214), 28 states have internal predecessors, (214), 14 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) [2024-11-23 22:39:50,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 1866 transitions. [2024-11-23 22:39:50,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-23 22:39:50,792 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:39:50,792 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2024-11-23 22:39:50,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2024-11-23 22:39:50,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:39:50,993 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:39:50,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:39:50,994 INFO L85 PathProgramCache]: Analyzing trace with hash 519888559, now seen corresponding path program 2 times [2024-11-23 22:39:50,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:39:50,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627315703] [2024-11-23 22:39:50,994 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:39:50,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:39:51,013 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:39:51,013 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:39:51,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 40 proven. 66 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-23 22:39:51,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:39:51,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627315703] [2024-11-23 22:39:51,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627315703] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:39:51,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136834065] [2024-11-23 22:39:51,862 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:39:51,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:39:51,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:39:51,865 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:39:51,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-23 22:39:51,974 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:39:51,975 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:39:51,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-23 22:39:51,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:39:55,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-23 22:39:55,251 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:40:16,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-23 22:40:16,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136834065] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:40:16,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:40:16,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 20, 16] total 45 [2024-11-23 22:40:16,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410927732] [2024-11-23 22:40:16,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:40:16,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-23 22:40:16,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:40:16,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-23 22:40:16,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=562, Invalid=1508, Unknown=0, NotChecked=0, Total=2070 [2024-11-23 22:40:16,701 INFO L87 Difference]: Start difference. First operand 1590 states and 1866 transitions. Second operand has 46 states, 45 states have (on average 6.844444444444444) internal successors, (308), 46 states have internal predecessors, (308), 20 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 20 states have call predecessors, (54), 20 states have call successors, (54) [2024-11-23 22:41:49,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:41:49,613 INFO L93 Difference]: Finished difference Result 3201 states and 3910 transitions. [2024-11-23 22:41:49,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2024-11-23 22:41:49,614 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 6.844444444444444) internal successors, (308), 46 states have internal predecessors, (308), 20 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 20 states have call predecessors, (54), 20 states have call successors, (54) Word has length 218 [2024-11-23 22:41:49,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:41:49,621 INFO L225 Difference]: With dead ends: 3201 [2024-11-23 22:41:49,621 INFO L226 Difference]: Without dead ends: 3200 [2024-11-23 22:41:49,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 397 SyntacticMatches, 4 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13586 ImplicationChecksByTransitivity, 82.9s TimeCoverageRelationStatistics Valid=7615, Invalid=21455, Unknown=0, NotChecked=0, Total=29070 [2024-11-23 22:41:49,626 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 2936 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 3351 mSolverCounterSat, 645 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2940 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 3996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 645 IncrementalHoareTripleChecker+Valid, 3351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:41:49,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2940 Valid, 1608 Invalid, 3996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [645 Valid, 3351 Invalid, 0 Unknown, 0 Unchecked, 14.1s Time] [2024-11-23 22:41:49,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3200 states. [2024-11-23 22:41:50,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3200 to 1928. [2024-11-23 22:41:50,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1928 states, 1718 states have (on average 1.1257275902211874) internal successors, (1934), 1726 states have internal predecessors, (1934), 173 states have call successors, (173), 28 states have call predecessors, (173), 28 states have return successors, (173), 173 states have call predecessors, (173), 173 states have call successors, (173) [2024-11-23 22:41:50,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1928 states to 1928 states and 2280 transitions. [2024-11-23 22:41:50,342 INFO L78 Accepts]: Start accepts. Automaton has 1928 states and 2280 transitions. Word has length 218 [2024-11-23 22:41:50,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:41:50,343 INFO L471 AbstractCegarLoop]: Abstraction has 1928 states and 2280 transitions. [2024-11-23 22:41:50,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 6.844444444444444) internal successors, (308), 46 states have internal predecessors, (308), 20 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 20 states have call predecessors, (54), 20 states have call successors, (54) [2024-11-23 22:41:50,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1928 states and 2280 transitions. [2024-11-23 22:41:50,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-23 22:41:50,345 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:41:50,345 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-23 22:41:50,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-11-23 22:41:50,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-11-23 22:41:50,546 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:41:50,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:41:50,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1041427010, now seen corresponding path program 3 times [2024-11-23 22:41:50,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:41:50,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062873096] [2024-11-23 22:41:50,547 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:41:50,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:41:50,602 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-23 22:41:50,602 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 22:41:50,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1083323699] [2024-11-23 22:41:50,604 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:41:50,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:41:50,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:41:50,607 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:41:50,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-23 22:41:50,692 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-23 22:41:50,692 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:41:50,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-23 22:41:50,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:41:53,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 116 proven. 8 refuted. 0 times theorem prover too weak. 922 trivial. 0 not checked. [2024-11-23 22:41:53,025 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:41:56,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:41:56,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062873096] [2024-11-23 22:41:56,894 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:41:56,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083323699] [2024-11-23 22:41:56,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083323699] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:41:56,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:41:56,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-23 22:41:56,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598294419] [2024-11-23 22:41:56,894 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 22:41:56,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 22:41:56,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:41:56,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 22:41:56,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2024-11-23 22:41:56,896 INFO L87 Difference]: Start difference. First operand 1928 states and 2280 transitions. Second operand has 14 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-23 22:41:59,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:41:59,627 INFO L93 Difference]: Finished difference Result 2492 states and 3003 transitions. [2024-11-23 22:41:59,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-23 22:41:59,627 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 222 [2024-11-23 22:41:59,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:41:59,630 INFO L225 Difference]: With dead ends: 2492 [2024-11-23 22:41:59,630 INFO L226 Difference]: Without dead ends: 2490 [2024-11-23 22:41:59,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=257, Invalid=735, Unknown=0, NotChecked=0, Total=992 [2024-11-23 22:41:59,631 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 144 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:41:59,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 324 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 22:41:59,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2024-11-23 22:41:59,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 1616. [2024-11-23 22:41:59,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1437 states have (on average 1.1210855949895615) internal successors, (1611), 1445 states have internal predecessors, (1611), 143 states have call successors, (143), 27 states have call predecessors, (143), 27 states have return successors, (143), 143 states have call predecessors, (143), 143 states have call successors, (143) [2024-11-23 22:41:59,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 1897 transitions. [2024-11-23 22:41:59,998 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 1897 transitions. Word has length 222 [2024-11-23 22:41:59,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:41:59,998 INFO L471 AbstractCegarLoop]: Abstraction has 1616 states and 1897 transitions. [2024-11-23 22:41:59,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-23 22:41:59,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 1897 transitions. [2024-11-23 22:41:59,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-23 22:41:59,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:41:59,999 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2024-11-23 22:42:00,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-23 22:42:00,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-23 22:42:00,200 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:42:00,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:00,200 INFO L85 PathProgramCache]: Analyzing trace with hash 504990776, now seen corresponding path program 7 times [2024-11-23 22:42:00,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:42:00,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099833746] [2024-11-23 22:42:00,201 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 22:42:00,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:42:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 22:42:00,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [187788431] [2024-11-23 22:42:00,236 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 22:42:00,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:42:00,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:42:00,239 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:42:00,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-23 22:42:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:00,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-23 22:42:00,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:42:04,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-23 22:42:04,913 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:42:10,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:42:10,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099833746] [2024-11-23 22:42:10,829 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:42:10,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187788431] [2024-11-23 22:42:10,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187788431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:42:10,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:42:10,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2024-11-23 22:42:10,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174859358] [2024-11-23 22:42:10,830 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 22:42:10,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-23 22:42:10,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:42:10,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-23 22:42:10,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=687, Unknown=1, NotChecked=0, Total=812 [2024-11-23 22:42:10,831 INFO L87 Difference]: Start difference. First operand 1616 states and 1897 transitions. Second operand has 24 states, 23 states have (on average 5.391304347826087) internal successors, (124), 24 states have internal predecessors, (124), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2024-11-23 22:42:17,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:42:17,771 INFO L93 Difference]: Finished difference Result 1698 states and 1996 transitions. [2024-11-23 22:42:17,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-23 22:42:17,772 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.391304347826087) internal successors, (124), 24 states have internal predecessors, (124), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) Word has length 226 [2024-11-23 22:42:17,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:42:17,774 INFO L225 Difference]: With dead ends: 1698 [2024-11-23 22:42:17,774 INFO L226 Difference]: Without dead ends: 1697 [2024-11-23 22:42:17,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=146, Invalid=783, Unknown=1, NotChecked=0, Total=930 [2024-11-23 22:42:17,775 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 71 mSDsluCounter, 1478 mSDsCounter, 0 mSdLazyCounter, 3104 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1604 SdHoareTripleChecker+Invalid, 3111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 3104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:42:17,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1604 Invalid, 3111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 3104 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-23 22:42:17,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2024-11-23 22:42:18,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1586. [2024-11-23 22:42:18,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1409 states have (on average 1.1220723917672109) internal successors, (1581), 1417 states have internal predecessors, (1581), 141 states have call successors, (141), 27 states have call predecessors, (141), 27 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-23 22:42:18,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 1863 transitions. [2024-11-23 22:42:18,170 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 1863 transitions. Word has length 226 [2024-11-23 22:42:18,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:42:18,170 INFO L471 AbstractCegarLoop]: Abstraction has 1586 states and 1863 transitions. [2024-11-23 22:42:18,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.391304347826087) internal successors, (124), 24 states have internal predecessors, (124), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2024-11-23 22:42:18,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 1863 transitions. [2024-11-23 22:42:18,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-23 22:42:18,172 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:42:18,172 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1] [2024-11-23 22:42:18,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-11-23 22:42:18,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-11-23 22:42:18,372 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:42:18,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:18,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1364431385, now seen corresponding path program 2 times [2024-11-23 22:42:18,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:42:18,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448694436] [2024-11-23 22:42:18,373 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:42:18,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:42:18,389 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:42:18,389 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:42:18,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 0 proven. 504 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:42:18,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:42:18,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448694436] [2024-11-23 22:42:18,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448694436] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:42:18,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095440045] [2024-11-23 22:42:18,808 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:42:18,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:42:18,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:42:18,810 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:42:18,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-11-23 22:42:18,919 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:42:18,920 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:42:18,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 22:42:18,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:42:19,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 0 proven. 504 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:42:19,510 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:42:20,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 0 proven. 504 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:42:20,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095440045] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:42:20,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:42:20,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-23 22:42:20,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268974208] [2024-11-23 22:42:20,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:42:20,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-23 22:42:20,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:42:20,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-23 22:42:20,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-23 22:42:20,732 INFO L87 Difference]: Start difference. First operand 1586 states and 1863 transitions. Second operand has 21 states, 20 states have (on average 10.8) internal successors, (216), 21 states have internal predecessors, (216), 19 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 19 states have call predecessors, (57), 19 states have call successors, (57) [2024-11-23 22:42:23,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:42:23,504 INFO L93 Difference]: Finished difference Result 4787 states and 5739 transitions. [2024-11-23 22:42:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-23 22:42:23,505 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 10.8) internal successors, (216), 21 states have internal predecessors, (216), 19 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 19 states have call predecessors, (57), 19 states have call successors, (57) Word has length 236 [2024-11-23 22:42:23,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:42:23,512 INFO L225 Difference]: With dead ends: 4787 [2024-11-23 22:42:23,512 INFO L226 Difference]: Without dead ends: 4786 [2024-11-23 22:42:23,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-23 22:42:23,513 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 1110 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:42:23,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1146 Valid, 796 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-23 22:42:23,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4786 states. [2024-11-23 22:42:24,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4786 to 1700. [2024-11-23 22:42:24,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 1499 states have (on average 1.1300867244829886) internal successors, (1694), 1507 states have internal predecessors, (1694), 165 states have call successors, (165), 27 states have call predecessors, (165), 27 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-23 22:42:24,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2024 transitions. [2024-11-23 22:42:24,061 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2024 transitions. Word has length 236 [2024-11-23 22:42:24,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:42:24,061 INFO L471 AbstractCegarLoop]: Abstraction has 1700 states and 2024 transitions. [2024-11-23 22:42:24,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 10.8) internal successors, (216), 21 states have internal predecessors, (216), 19 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 19 states have call predecessors, (57), 19 states have call successors, (57) [2024-11-23 22:42:24,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2024 transitions. [2024-11-23 22:42:24,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-23 22:42:24,063 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:42:24,063 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:42:24,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2024-11-23 22:42:24,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-23 22:42:24,263 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:42:24,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:24,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1843276417, now seen corresponding path program 3 times [2024-11-23 22:42:24,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:42:24,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710459932] [2024-11-23 22:42:24,264 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:42:24,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:42:24,297 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-23 22:42:24,298 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:42:24,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 72 proven. 145 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-23 22:42:24,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:42:24,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710459932] [2024-11-23 22:42:24,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710459932] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:42:24,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672491471] [2024-11-23 22:42:24,907 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:42:24,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:42:24,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:42:24,910 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:42:24,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-23 22:42:24,994 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-23 22:42:24,994 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:42:24,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-23 22:42:24,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:42:26,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 117 proven. 50 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2024-11-23 22:42:26,171 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:42:26,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 1142 trivial. 0 not checked. [2024-11-23 22:42:26,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672491471] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 22:42:26,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:42:26,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 8] total 20 [2024-11-23 22:42:26,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608841477] [2024-11-23 22:42:26,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:42:26,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:42:26,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:42:26,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:42:26,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2024-11-23 22:42:26,925 INFO L87 Difference]: Start difference. First operand 1700 states and 2024 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-23 22:42:28,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:42:28,288 INFO L93 Difference]: Finished difference Result 1713 states and 2038 transitions. [2024-11-23 22:42:28,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:42:28,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 233 [2024-11-23 22:42:28,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:42:28,291 INFO L225 Difference]: With dead ends: 1713 [2024-11-23 22:42:28,291 INFO L226 Difference]: Without dead ends: 1712 [2024-11-23 22:42:28,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 459 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2024-11-23 22:42:28,292 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 105 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 22:42:28,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 129 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 22:42:28,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2024-11-23 22:42:29,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1701. [2024-11-23 22:42:29,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1500 states have (on average 1.13) internal successors, (1695), 1508 states have internal predecessors, (1695), 165 states have call successors, (165), 27 states have call predecessors, (165), 27 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-23 22:42:29,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2025 transitions. [2024-11-23 22:42:29,051 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2025 transitions. Word has length 233 [2024-11-23 22:42:29,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:42:29,051 INFO L471 AbstractCegarLoop]: Abstraction has 1701 states and 2025 transitions. [2024-11-23 22:42:29,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-23 22:42:29,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2025 transitions. [2024-11-23 22:42:29,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-23 22:42:29,053 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:42:29,053 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:42:29,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2024-11-23 22:42:29,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:42:29,254 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:42:29,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:29,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1862106559, now seen corresponding path program 1 times [2024-11-23 22:42:29,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:42:29,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178989511] [2024-11-23 22:42:29,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:42:29,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:42:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:29,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 72 proven. 145 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-23 22:42:29,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:42:29,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178989511] [2024-11-23 22:42:29,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178989511] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:42:29,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355961434] [2024-11-23 22:42:29,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:42:29,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:42:29,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:42:29,756 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:42:29,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-11-23 22:42:29,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:29,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-23 22:42:29,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:42:32,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-23 22:42:32,287 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:42:32,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355961434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:42:32,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:42:32,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 19] total 24 [2024-11-23 22:42:32,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355767159] [2024-11-23 22:42:32,553 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:42:32,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-23 22:42:32,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:42:32,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-23 22:42:32,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2024-11-23 22:42:32,555 INFO L87 Difference]: Start difference. First operand 1701 states and 2025 transitions. Second operand has 24 states, 24 states have (on average 9.916666666666666) internal successors, (238), 24 states have internal predecessors, (238), 13 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) [2024-11-23 22:42:36,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:42:36,838 INFO L93 Difference]: Finished difference Result 1769 states and 2090 transitions. [2024-11-23 22:42:36,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-23 22:42:36,838 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.916666666666666) internal successors, (238), 24 states have internal predecessors, (238), 13 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) Word has length 235 [2024-11-23 22:42:36,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:42:36,841 INFO L225 Difference]: With dead ends: 1769 [2024-11-23 22:42:36,841 INFO L226 Difference]: Without dead ends: 1764 [2024-11-23 22:42:36,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 225 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2024-11-23 22:42:36,842 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 109 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:42:36,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1150 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1680 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-23 22:42:36,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2024-11-23 22:42:37,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1701. [2024-11-23 22:42:37,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1500 states have (on average 1.1246666666666667) internal successors, (1687), 1508 states have internal predecessors, (1687), 165 states have call successors, (165), 27 states have call predecessors, (165), 27 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-23 22:42:37,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2017 transitions. [2024-11-23 22:42:37,317 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2017 transitions. Word has length 235 [2024-11-23 22:42:37,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:42:37,317 INFO L471 AbstractCegarLoop]: Abstraction has 1701 states and 2017 transitions. [2024-11-23 22:42:37,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.916666666666666) internal successors, (238), 24 states have internal predecessors, (238), 13 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) [2024-11-23 22:42:37,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2017 transitions. [2024-11-23 22:42:37,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-23 22:42:37,320 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:42:37,320 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:42:37,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2024-11-23 22:42:37,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:42:37,521 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:42:37,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:37,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1613740350, now seen corresponding path program 2 times [2024-11-23 22:42:37,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:42:37,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725097200] [2024-11-23 22:42:37,521 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:42:37,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:42:37,546 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:42:37,546 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:42:38,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 0 proven. 219 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2024-11-23 22:42:38,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:42:38,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725097200] [2024-11-23 22:42:38,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725097200] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:42:38,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822569085] [2024-11-23 22:42:38,431 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:42:38,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:42:38,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:42:38,433 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:42:38,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-11-23 22:42:38,554 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:42:38,554 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:42:38,557 INFO L256 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 22:42:38,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:42:40,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 3 proven. 216 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2024-11-23 22:42:40,461 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:42:42,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 111 proven. 108 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2024-11-23 22:42:42,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822569085] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:42:42,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:42:42,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 12] total 26 [2024-11-23 22:42:42,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506955180] [2024-11-23 22:42:42,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:42:42,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-23 22:42:42,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:42:42,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-23 22:42:42,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=559, Unknown=0, NotChecked=0, Total=702 [2024-11-23 22:42:42,830 INFO L87 Difference]: Start difference. First operand 1701 states and 2017 transitions. Second operand has 27 states, 26 states have (on average 10.26923076923077) internal successors, (267), 27 states have internal predecessors, (267), 15 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 15 states have call predecessors, (44), 15 states have call successors, (44) [2024-11-23 22:42:47,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:42:47,027 INFO L93 Difference]: Finished difference Result 1924 states and 2285 transitions. [2024-11-23 22:42:47,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-23 22:42:47,027 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 10.26923076923077) internal successors, (267), 27 states have internal predecessors, (267), 15 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 15 states have call predecessors, (44), 15 states have call successors, (44) Word has length 235 [2024-11-23 22:42:47,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:42:47,030 INFO L225 Difference]: With dead ends: 1924 [2024-11-23 22:42:47,030 INFO L226 Difference]: Without dead ends: 1915 [2024-11-23 22:42:47,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 454 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=444, Invalid=1718, Unknown=0, NotChecked=0, Total=2162 [2024-11-23 22:42:47,031 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 372 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:42:47,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 1418 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-23 22:42:47,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2024-11-23 22:42:47,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1876. [2024-11-23 22:42:47,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1876 states, 1659 states have (on average 1.1247739602169982) internal successors, (1866), 1667 states have internal predecessors, (1866), 181 states have call successors, (181), 27 states have call predecessors, (181), 27 states have return successors, (181), 181 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-23 22:42:47,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 2228 transitions. [2024-11-23 22:42:47,626 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 2228 transitions. Word has length 235 [2024-11-23 22:42:47,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:42:47,626 INFO L471 AbstractCegarLoop]: Abstraction has 1876 states and 2228 transitions. [2024-11-23 22:42:47,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 10.26923076923077) internal successors, (267), 27 states have internal predecessors, (267), 15 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 15 states have call predecessors, (44), 15 states have call successors, (44) [2024-11-23 22:42:47,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 2228 transitions. [2024-11-23 22:42:47,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-23 22:42:47,629 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:42:47,629 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:42:47,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2024-11-23 22:42:47,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:42:47,830 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:42:47,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:47,830 INFO L85 PathProgramCache]: Analyzing trace with hash 653498248, now seen corresponding path program 3 times [2024-11-23 22:42:47,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:42:47,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429272309] [2024-11-23 22:42:47,831 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:42:47,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:42:47,878 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-23 22:42:47,878 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:42:49,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 26 proven. 210 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-23 22:42:49,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:42:49,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429272309] [2024-11-23 22:42:49,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429272309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:42:49,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842101888] [2024-11-23 22:42:49,022 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:42:49,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:42:49,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:42:49,024 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:42:49,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-11-23 22:42:49,100 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-23 22:42:49,100 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:42:49,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-23 22:42:49,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:42:50,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 103 proven. 52 refuted. 0 times theorem prover too weak. 1005 trivial. 0 not checked. [2024-11-23 22:42:50,805 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:42:51,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 1077 trivial. 0 not checked. [2024-11-23 22:42:51,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842101888] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 22:42:51,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:42:51,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16, 8] total 26 [2024-11-23 22:42:51,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232088325] [2024-11-23 22:42:51,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:42:51,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:42:51,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:42:51,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:42:51,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=604, Unknown=0, NotChecked=0, Total=702 [2024-11-23 22:42:51,586 INFO L87 Difference]: Start difference. First operand 1876 states and 2228 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-23 22:42:53,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:42:53,041 INFO L93 Difference]: Finished difference Result 1879 states and 2230 transitions. [2024-11-23 22:42:53,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:42:53,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 239 [2024-11-23 22:42:53,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:42:53,044 INFO L225 Difference]: With dead ends: 1879 [2024-11-23 22:42:53,044 INFO L226 Difference]: Without dead ends: 1874 [2024-11-23 22:42:53,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 468 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2024-11-23 22:42:53,046 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 67 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:42:53,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 126 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 22:42:53,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2024-11-23 22:42:53,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1874. [2024-11-23 22:42:53,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1874 states, 1657 states have (on average 1.1110440555220278) internal successors, (1841), 1665 states have internal predecessors, (1841), 181 states have call successors, (181), 27 states have call predecessors, (181), 27 states have return successors, (181), 181 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-23 22:42:53,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 2203 transitions. [2024-11-23 22:42:53,634 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 2203 transitions. Word has length 239 [2024-11-23 22:42:53,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:42:53,634 INFO L471 AbstractCegarLoop]: Abstraction has 1874 states and 2203 transitions. [2024-11-23 22:42:53,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-23 22:42:53,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 2203 transitions. [2024-11-23 22:42:53,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2024-11-23 22:42:53,637 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:42:53,637 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:42:53,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2024-11-23 22:42:53,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2024-11-23 22:42:53,838 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:42:53,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:53,839 INFO L85 PathProgramCache]: Analyzing trace with hash -44451615, now seen corresponding path program 2 times [2024-11-23 22:42:53,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:42:53,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237797115] [2024-11-23 22:42:53,839 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:42:53,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:42:53,867 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:42:53,868 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:42:55,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1360 backedges. 0 proven. 256 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-23 22:42:55,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:42:55,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237797115] [2024-11-23 22:42:55,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237797115] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:42:55,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533820857] [2024-11-23 22:42:55,799 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:42:55,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:42:55,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:42:55,801 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:42:55,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-11-23 22:42:55,898 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:42:55,898 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:42:55,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-23 22:42:55,903 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:42:56,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1360 backedges. 0 proven. 1276 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-23 22:42:56,980 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:42:59,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1360 backedges. 0 proven. 256 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-23 22:42:59,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533820857] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:42:59,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:42:59,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 21, 22] total 47 [2024-11-23 22:42:59,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695195790] [2024-11-23 22:42:59,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:42:59,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-11-23 22:42:59,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:42:59,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-11-23 22:42:59,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=479, Invalid=1683, Unknown=0, NotChecked=0, Total=2162 [2024-11-23 22:42:59,817 INFO L87 Difference]: Start difference. First operand 1874 states and 2203 transitions. Second operand has 47 states, 47 states have (on average 5.9787234042553195) internal successors, (281), 47 states have internal predecessors, (281), 18 states have call successors, (72), 10 states have call predecessors, (72), 10 states have return successors, (72), 18 states have call predecessors, (72), 18 states have call successors, (72) [2024-11-23 22:43:05,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:43:05,232 INFO L93 Difference]: Finished difference Result 3247 states and 3838 transitions. [2024-11-23 22:43:05,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-11-23 22:43:05,233 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 5.9787234042553195) internal successors, (281), 47 states have internal predecessors, (281), 18 states have call successors, (72), 10 states have call predecessors, (72), 10 states have return successors, (72), 18 states have call predecessors, (72), 18 states have call successors, (72) Word has length 241 [2024-11-23 22:43:05,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:43:05,236 INFO L225 Difference]: With dead ends: 3247 [2024-11-23 22:43:05,237 INFO L226 Difference]: Without dead ends: 2942 [2024-11-23 22:43:05,238 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2402 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1801, Invalid=6571, Unknown=0, NotChecked=0, Total=8372 [2024-11-23 22:43:05,238 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 387 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:43:05,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 941 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 22:43:05,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2024-11-23 22:43:06,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 2900. [2024-11-23 22:43:06,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2900 states, 2587 states have (on average 1.0923850019327406) internal successors, (2826), 2596 states have internal predecessors, (2826), 265 states have call successors, (265), 39 states have call predecessors, (265), 39 states have return successors, (265), 264 states have call predecessors, (265), 265 states have call successors, (265) [2024-11-23 22:43:06,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2900 states to 2900 states and 3356 transitions. [2024-11-23 22:43:06,014 INFO L78 Accepts]: Start accepts. Automaton has 2900 states and 3356 transitions. Word has length 241 [2024-11-23 22:43:06,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:43:06,014 INFO L471 AbstractCegarLoop]: Abstraction has 2900 states and 3356 transitions. [2024-11-23 22:43:06,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 5.9787234042553195) internal successors, (281), 47 states have internal predecessors, (281), 18 states have call successors, (72), 10 states have call predecessors, (72), 10 states have return successors, (72), 18 states have call predecessors, (72), 18 states have call successors, (72) [2024-11-23 22:43:06,014 INFO L276 IsEmpty]: Start isEmpty. Operand 2900 states and 3356 transitions. [2024-11-23 22:43:06,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-23 22:43:06,017 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:43:06,017 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2024-11-23 22:43:06,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2024-11-23 22:43:06,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2024-11-23 22:43:06,218 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:43:06,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:43:06,218 INFO L85 PathProgramCache]: Analyzing trace with hash -780660363, now seen corresponding path program 8 times [2024-11-23 22:43:06,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:43:06,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194905936] [2024-11-23 22:43:06,219 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:43:06,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:43:06,244 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:43:06,245 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 22:43:06,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1636698300] [2024-11-23 22:43:06,246 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:43:06,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:43:06,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:43:06,250 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:43:06,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-11-23 22:43:06,379 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:43:06,380 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:43:06,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-23 22:43:06,389 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:43:11,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-23 22:43:11,757 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:43:13,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:43:13,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194905936] [2024-11-23 22:43:13,300 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:43:13,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636698300] [2024-11-23 22:43:13,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636698300] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:43:13,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:43:13,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2024-11-23 22:43:13,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897264425] [2024-11-23 22:43:13,301 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 22:43:13,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-23 22:43:13,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:43:13,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-23 22:43:13,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=802, Unknown=0, NotChecked=0, Total=930 [2024-11-23 22:43:13,302 INFO L87 Difference]: Start difference. First operand 2900 states and 3356 transitions. Second operand has 26 states, 25 states have (on average 5.4) internal successors, (135), 26 states have internal predecessors, (135), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-23 22:43:21,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:43:21,021 INFO L93 Difference]: Finished difference Result 3130 states and 3622 transitions. [2024-11-23 22:43:21,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-23 22:43:21,022 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 5.4) internal successors, (135), 26 states have internal predecessors, (135), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) Word has length 252 [2024-11-23 22:43:21,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:43:21,026 INFO L225 Difference]: With dead ends: 3130 [2024-11-23 22:43:21,026 INFO L226 Difference]: Without dead ends: 3129 [2024-11-23 22:43:21,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=162, Invalid=960, Unknown=0, NotChecked=0, Total=1122 [2024-11-23 22:43:21,027 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 95 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 3367 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 3379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:43:21,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1749 Invalid, 3379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3367 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-23 22:43:21,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3129 states. [2024-11-23 22:43:21,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3129 to 2900. [2024-11-23 22:43:21,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2900 states, 2587 states have (on average 1.091998453807499) internal successors, (2825), 2596 states have internal predecessors, (2825), 265 states have call successors, (265), 39 states have call predecessors, (265), 39 states have return successors, (265), 264 states have call predecessors, (265), 265 states have call successors, (265) [2024-11-23 22:43:21,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2900 states to 2900 states and 3355 transitions. [2024-11-23 22:43:21,913 INFO L78 Accepts]: Start accepts. Automaton has 2900 states and 3355 transitions. Word has length 252 [2024-11-23 22:43:21,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:43:21,913 INFO L471 AbstractCegarLoop]: Abstraction has 2900 states and 3355 transitions. [2024-11-23 22:43:21,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 5.4) internal successors, (135), 26 states have internal predecessors, (135), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-23 22:43:21,913 INFO L276 IsEmpty]: Start isEmpty. Operand 2900 states and 3355 transitions. [2024-11-23 22:43:21,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-23 22:43:21,916 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:43:21,916 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-23 22:43:21,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2024-11-23 22:43:22,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2024-11-23 22:43:22,118 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:43:22,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:43:22,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1954547668, now seen corresponding path program 4 times [2024-11-23 22:43:22,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:43:22,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659405973] [2024-11-23 22:43:22,119 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 22:43:22,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:43:22,162 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 22:43:22,162 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:43:23,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-23 22:43:23,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:43:23,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659405973] [2024-11-23 22:43:23,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659405973] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:43:23,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836001797] [2024-11-23 22:43:23,735 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 22:43:23,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:43:23,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:43:23,738 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:43:23,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-11-23 22:43:23,901 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 22:43:23,901 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:43:23,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-23 22:43:23,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:43:31,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 168 proven. 288 refuted. 0 times theorem prover too weak. 832 trivial. 0 not checked. [2024-11-23 22:43:31,129 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:43:33,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836001797] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:43:33,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:43:33,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 25] total 38 [2024-11-23 22:43:33,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300008768] [2024-11-23 22:43:33,189 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:43:33,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-23 22:43:33,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:43:33,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-23 22:43:33,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1671, Unknown=0, NotChecked=0, Total=1806 [2024-11-23 22:43:33,191 INFO L87 Difference]: Start difference. First operand 2900 states and 3355 transitions. Second operand has 39 states, 38 states have (on average 7.342105263157895) internal successors, (279), 39 states have internal predecessors, (279), 17 states have call successors, (46), 1 states have call predecessors, (46), 2 states have return successors, (46), 18 states have call predecessors, (46), 17 states have call successors, (46) [2024-11-23 22:43:50,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:43:50,667 INFO L93 Difference]: Finished difference Result 3391 states and 3921 transitions. [2024-11-23 22:43:50,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-23 22:43:50,667 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 7.342105263157895) internal successors, (279), 39 states have internal predecessors, (279), 17 states have call successors, (46), 1 states have call predecessors, (46), 2 states have return successors, (46), 18 states have call predecessors, (46), 17 states have call successors, (46) Word has length 252 [2024-11-23 22:43:50,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:43:50,671 INFO L225 Difference]: With dead ends: 3391 [2024-11-23 22:43:50,671 INFO L226 Difference]: Without dead ends: 3390 [2024-11-23 22:43:50,671 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 245 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1906 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=546, Invalid=6764, Unknown=0, NotChecked=0, Total=7310 [2024-11-23 22:43:50,672 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 546 mSDsluCounter, 2817 mSDsCounter, 0 mSdLazyCounter, 5589 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 2960 SdHoareTripleChecker+Invalid, 5699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 5589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:43:50,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 2960 Invalid, 5699 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [110 Valid, 5589 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2024-11-23 22:43:50,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2024-11-23 22:43:51,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 2952. [2024-11-23 22:43:51,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2952 states, 2635 states have (on average 1.0910815939278937) internal successors, (2875), 2644 states have internal predecessors, (2875), 269 states have call successors, (269), 39 states have call predecessors, (269), 39 states have return successors, (269), 268 states have call predecessors, (269), 269 states have call successors, (269) [2024-11-23 22:43:51,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2952 states to 2952 states and 3413 transitions. [2024-11-23 22:43:51,539 INFO L78 Accepts]: Start accepts. Automaton has 2952 states and 3413 transitions. Word has length 252 [2024-11-23 22:43:51,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:43:51,539 INFO L471 AbstractCegarLoop]: Abstraction has 2952 states and 3413 transitions. [2024-11-23 22:43:51,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 7.342105263157895) internal successors, (279), 39 states have internal predecessors, (279), 17 states have call successors, (46), 1 states have call predecessors, (46), 2 states have return successors, (46), 18 states have call predecessors, (46), 17 states have call successors, (46) [2024-11-23 22:43:51,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2952 states and 3413 transitions. [2024-11-23 22:43:51,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-11-23 22:43:51,542 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:43:51,542 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2024-11-23 22:43:51,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2024-11-23 22:43:51,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2024-11-23 22:43:51,743 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:43:51,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:43:51,743 INFO L85 PathProgramCache]: Analyzing trace with hash 2129226958, now seen corresponding path program 9 times [2024-11-23 22:43:51,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:43:51,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251143822] [2024-11-23 22:43:51,743 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:43:51,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:43:51,821 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-23 22:43:51,822 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:43:53,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-23 22:43:53,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:43:53,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251143822] [2024-11-23 22:43:53,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251143822] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:43:53,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567320228] [2024-11-23 22:43:53,776 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:43:53,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:43:53,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:43:53,780 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:43:53,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-11-23 22:43:53,881 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-23 22:43:53,881 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:43:53,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 22:43:53,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:43:55,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2024-11-23 22:43:55,971 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:43:55,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567320228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:43:55,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:43:55,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [19] total 27 [2024-11-23 22:43:55,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811019927] [2024-11-23 22:43:55,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:43:55,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 22:43:55,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:43:55,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 22:43:55,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2024-11-23 22:43:55,973 INFO L87 Difference]: Start difference. First operand 2952 states and 3413 transitions. Second operand has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-23 22:43:58,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:43:58,071 INFO L93 Difference]: Finished difference Result 2971 states and 3433 transitions. [2024-11-23 22:43:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 22:43:58,072 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 256 [2024-11-23 22:43:58,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:43:58,076 INFO L225 Difference]: With dead ends: 2971 [2024-11-23 22:43:58,076 INFO L226 Difference]: Without dead ends: 2970 [2024-11-23 22:43:58,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 248 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=102, Invalid=828, Unknown=0, NotChecked=0, Total=930 [2024-11-23 22:43:58,077 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 130 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 22:43:58,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 113 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 22:43:58,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2024-11-23 22:43:58,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 2463. [2024-11-23 22:43:58,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2463 states, 2177 states have (on average 1.0854386770785485) internal successors, (2363), 2185 states have internal predecessors, (2363), 239 states have call successors, (239), 39 states have call predecessors, (239), 39 states have return successors, (239), 238 states have call predecessors, (239), 239 states have call successors, (239) [2024-11-23 22:43:58,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 2841 transitions. [2024-11-23 22:43:58,949 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 2841 transitions. Word has length 256 [2024-11-23 22:43:58,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:43:58,950 INFO L471 AbstractCegarLoop]: Abstraction has 2463 states and 2841 transitions. [2024-11-23 22:43:58,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-23 22:43:58,950 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 2841 transitions. [2024-11-23 22:43:58,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-23 22:43:58,953 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:43:58,953 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-23 22:43:58,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2024-11-23 22:43:59,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:43:59,158 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:43:59,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:43:59,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1984477624, now seen corresponding path program 2 times [2024-11-23 22:43:59,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:43:59,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141427934] [2024-11-23 22:43:59,159 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:43:59,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:43:59,196 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:43:59,196 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:44:00,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 50 proven. 120 refuted. 0 times theorem prover too weak. 1440 trivial. 0 not checked. [2024-11-23 22:44:00,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:44:00,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141427934] [2024-11-23 22:44:00,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141427934] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:44:00,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742239001] [2024-11-23 22:44:00,149 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:44:00,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:44:00,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:44:00,151 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:44:00,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-11-23 22:44:00,265 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:44:00,265 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:44:00,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-23 22:44:00,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:44:05,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-23 22:44:05,935 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:45:03,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742239001] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:45:03,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:45:03,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 28] total 40 [2024-11-23 22:45:03,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867836555] [2024-11-23 22:45:03,119 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:45:03,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-23 22:45:03,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:45:03,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-23 22:45:03,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=956, Invalid=2583, Unknown=1, NotChecked=0, Total=3540 [2024-11-23 22:45:03,120 INFO L87 Difference]: Start difference. First operand 2463 states and 2841 transitions. Second operand has 41 states, 40 states have (on average 5.975) internal successors, (239), 41 states have internal predecessors, (239), 15 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 15 states have call predecessors, (40), 15 states have call successors, (40) [2024-11-23 22:45:15,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:45:15,698 INFO L93 Difference]: Finished difference Result 3235 states and 3732 transitions. [2024-11-23 22:45:15,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-23 22:45:15,698 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 5.975) internal successors, (239), 41 states have internal predecessors, (239), 15 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 15 states have call predecessors, (40), 15 states have call successors, (40) Word has length 270 [2024-11-23 22:45:15,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:45:15,702 INFO L225 Difference]: With dead ends: 3235 [2024-11-23 22:45:15,702 INFO L226 Difference]: Without dead ends: 3234 [2024-11-23 22:45:15,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2168 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=1857, Invalid=4784, Unknown=1, NotChecked=0, Total=6642 [2024-11-23 22:45:15,703 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 424 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 4815 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 2149 SdHoareTripleChecker+Invalid, 4877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 4815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:45:15,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 2149 Invalid, 4877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 4815 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2024-11-23 22:45:15,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3234 states. [2024-11-23 22:45:16,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3234 to 2551. [2024-11-23 22:45:16,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2551 states, 2255 states have (on average 1.0824833702882484) internal successors, (2441), 2264 states have internal predecessors, (2441), 249 states have call successors, (249), 39 states have call predecessors, (249), 39 states have return successors, (249), 247 states have call predecessors, (249), 249 states have call successors, (249) [2024-11-23 22:45:16,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2551 states to 2551 states and 2939 transitions. [2024-11-23 22:45:16,455 INFO L78 Accepts]: Start accepts. Automaton has 2551 states and 2939 transitions. Word has length 270 [2024-11-23 22:45:16,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:45:16,455 INFO L471 AbstractCegarLoop]: Abstraction has 2551 states and 2939 transitions. [2024-11-23 22:45:16,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 5.975) internal successors, (239), 41 states have internal predecessors, (239), 15 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 15 states have call predecessors, (40), 15 states have call successors, (40) [2024-11-23 22:45:16,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2551 states and 2939 transitions. [2024-11-23 22:45:16,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-23 22:45:16,457 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:45:16,457 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 1, 1, 1] [2024-11-23 22:45:16,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2024-11-23 22:45:16,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:45:16,658 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:45:16,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:45:16,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1583450463, now seen corresponding path program 3 times [2024-11-23 22:45:16,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:45:16,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797491723] [2024-11-23 22:45:16,658 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:45:16,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:45:16,686 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-23 22:45:16,686 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:45:17,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 22:45:17,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:45:17,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797491723] [2024-11-23 22:45:17,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797491723] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:45:17,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331848106] [2024-11-23 22:45:17,283 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:45:17,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:45:17,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:45:17,285 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:45:17,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-11-23 22:45:17,424 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-23 22:45:17,424 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:45:17,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 22:45:17,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:45:18,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 22:45:18,020 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:45:19,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 22:45:19,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331848106] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:45:19,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:45:19,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2024-11-23 22:45:19,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080598741] [2024-11-23 22:45:19,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:45:19,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-23 22:45:19,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:45:19,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-23 22:45:19,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-11-23 22:45:19,459 INFO L87 Difference]: Start difference. First operand 2551 states and 2939 transitions. Second operand has 25 states, 24 states have (on average 10.583333333333334) internal successors, (254), 25 states have internal predecessors, (254), 23 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 23 states have call predecessors, (69), 23 states have call successors, (69) [2024-11-23 22:45:22,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:45:22,607 INFO L93 Difference]: Finished difference Result 5025 states and 5943 transitions. [2024-11-23 22:45:22,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-23 22:45:22,608 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 10.583333333333334) internal successors, (254), 25 states have internal predecessors, (254), 23 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 23 states have call predecessors, (69), 23 states have call successors, (69) Word has length 286 [2024-11-23 22:45:22,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:45:22,613 INFO L225 Difference]: With dead ends: 5025 [2024-11-23 22:45:22,613 INFO L226 Difference]: Without dead ends: 5023 [2024-11-23 22:45:22,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-11-23 22:45:22,614 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 1237 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:45:22,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1281 Valid, 810 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 22:45:22,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5023 states. [2024-11-23 22:45:23,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5023 to 2597. [2024-11-23 22:45:23,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2597 states, 2291 states have (on average 1.0829332169358359) internal successors, (2481), 2300 states have internal predecessors, (2481), 261 states have call successors, (261), 37 states have call predecessors, (261), 37 states have return successors, (261), 259 states have call predecessors, (261), 261 states have call successors, (261) [2024-11-23 22:45:23,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2597 states to 2597 states and 3003 transitions. [2024-11-23 22:45:23,475 INFO L78 Accepts]: Start accepts. Automaton has 2597 states and 3003 transitions. Word has length 286 [2024-11-23 22:45:23,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:45:23,476 INFO L471 AbstractCegarLoop]: Abstraction has 2597 states and 3003 transitions. [2024-11-23 22:45:23,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 10.583333333333334) internal successors, (254), 25 states have internal predecessors, (254), 23 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 23 states have call predecessors, (69), 23 states have call successors, (69) [2024-11-23 22:45:23,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2597 states and 3003 transitions. [2024-11-23 22:45:23,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-23 22:45:23,479 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:45:23,479 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-23 22:45:23,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2024-11-23 22:45:23,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:45:23,680 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:45:23,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:45:23,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1333679814, now seen corresponding path program 3 times [2024-11-23 22:45:23,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:45:23,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246870676] [2024-11-23 22:45:23,680 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:45:23,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:45:23,755 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2024-11-23 22:45:23,755 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:45:25,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1486 backedges. 132 proven. 246 refuted. 0 times theorem prover too weak. 1108 trivial. 0 not checked. [2024-11-23 22:45:25,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:45:25,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246870676] [2024-11-23 22:45:25,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246870676] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:45:25,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259234573] [2024-11-23 22:45:25,382 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:45:25,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:45:25,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:45:25,385 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:45:25,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-11-23 22:45:25,464 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-23 22:45:25,464 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:45:25,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 22:45:25,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:45:27,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1486 backedges. 99 proven. 46 refuted. 0 times theorem prover too weak. 1341 trivial. 0 not checked. [2024-11-23 22:45:27,278 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:45:32,717 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_z_373 Int)) (let ((.cse1 (* v_z_373 |c_ULTIMATE.start_main_~B~0#1|))) (or (< 1 v_z_373) (= v_z_373 0) (forall ((v_y_371 Int) (v_y_373 Int)) (let ((.cse0 (* 2 v_y_373))) (let ((.cse2 (+ .cse0 v_z_373))) (or (< 0 (+ (* 2 v_y_371) .cse0 v_z_373 1)) (< |c_ULTIMATE.start_main_~r~0#1| (+ (div .cse1 2) (* v_y_373 |c_ULTIMATE.start_main_~B~0#1|) (* v_y_371 |c_ULTIMATE.start_main_~B~0#1|))) (< 1 .cse2) (< .cse2 0) (< (+ v_y_371 |c_ULTIMATE.start_main_~q~0#1|) 2147483647))))) (< v_z_373 0) (not (= (mod .cse1 2) 0))))) (forall ((v_y_369 Int)) (or (< (+ v_y_369 |c_ULTIMATE.start_main_~q~0#1|) 2147483648) (forall ((v_z_369 Int)) (let ((.cse3 (* v_z_369 |c_ULTIMATE.start_main_~B~0#1|))) (or (< v_z_369 0) (< 1 v_z_369) (not (= (mod .cse3 2) 0)) (< |c_ULTIMATE.start_main_~r~0#1| (+ (div .cse3 2) (* v_y_369 |c_ULTIMATE.start_main_~B~0#1|)))))))) (forall ((v_y_369 Int)) (or (forall ((v_z_369 Int)) (or (< v_z_369 0) (< 1 v_z_369) (< |c_ULTIMATE.start_main_~r~0#1| (+ (div (* v_z_369 |c_ULTIMATE.start_main_~B~0#1|) 2) (* v_y_369 |c_ULTIMATE.start_main_~B~0#1|) 1)))) (< (+ v_y_369 |c_ULTIMATE.start_main_~q~0#1|) 2147483648))) (forall ((v_y_369 Int)) (or (< (+ v_y_369 |c_ULTIMATE.start_main_~q~0#1|) 2147483648) (forall ((v_z_369 Int)) (let ((.cse4 (* v_z_369 |c_ULTIMATE.start_main_~B~0#1|)) (.cse5 (* v_y_369 |c_ULTIMATE.start_main_~B~0#1|))) (or (< (+ .cse4 (* 2 .cse5)) 0) (< v_z_369 0) (< 1 v_z_369) (< |c_ULTIMATE.start_main_~r~0#1| (+ (div .cse4 2) .cse5))))))) (forall ((v_z_373 Int)) (or (forall ((v_y_373 Int)) (let ((.cse7 (* 2 v_y_373))) (let ((.cse6 (+ .cse7 v_z_373))) (or (< 1 .cse6) (forall ((v_y_371 Int)) (or (< 0 (+ (* 2 v_y_371) .cse7 v_z_373 1)) (< |c_ULTIMATE.start_main_~r~0#1| (+ (div (* v_z_373 |c_ULTIMATE.start_main_~B~0#1|) 2) (* v_y_373 |c_ULTIMATE.start_main_~B~0#1|) 1 (* v_y_371 |c_ULTIMATE.start_main_~B~0#1|))) (< (+ v_y_371 |c_ULTIMATE.start_main_~q~0#1|) 2147483647))) (< .cse6 0))))) (< 1 v_z_373) (= v_z_373 0) (< v_z_373 0))) (forall ((v_z_373 Int)) (or (forall ((v_y_373 Int)) (let ((.cse9 (* 2 v_y_373))) (let ((.cse8 (+ .cse9 v_z_373))) (or (< 1 .cse8) (forall ((v_y_371 Int)) (let ((.cse10 (* v_z_373 |c_ULTIMATE.start_main_~B~0#1|)) (.cse12 (* v_y_371 |c_ULTIMATE.start_main_~B~0#1|)) (.cse11 (* v_y_373 |c_ULTIMATE.start_main_~B~0#1|))) (or (< 0 (+ (* 2 v_y_371) .cse9 v_z_373 1)) (< |c_ULTIMATE.start_main_~r~0#1| (+ (div .cse10 2) .cse11 .cse12)) (< (+ .cse10 (* 2 .cse12) (* 2 .cse11)) 0) (< (+ v_y_371 |c_ULTIMATE.start_main_~q~0#1|) 2147483647)))) (< .cse8 0))))) (< 1 v_z_373) (= v_z_373 0) (< v_z_373 0)))) is different from false [2024-11-23 22:45:32,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259234573] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:45:32,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:45:32,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 10] total 28 [2024-11-23 22:45:32,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721431708] [2024-11-23 22:45:32,730 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:45:32,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-23 22:45:32,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:45:32,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-23 22:45:32,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=895, Unknown=1, NotChecked=60, Total=1056 [2024-11-23 22:45:32,731 INFO L87 Difference]: Start difference. First operand 2597 states and 3003 transitions. Second operand has 28 states, 28 states have (on average 7.5) internal successors, (210), 28 states have internal predecessors, (210), 12 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 13 states have call predecessors, (31), 12 states have call successors, (31) [2024-11-23 22:45:47,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:45:47,034 INFO L93 Difference]: Finished difference Result 3083 states and 3556 transitions. [2024-11-23 22:45:47,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2024-11-23 22:45:47,034 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 7.5) internal successors, (210), 28 states have internal predecessors, (210), 12 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 13 states have call predecessors, (31), 12 states have call successors, (31) Word has length 278 [2024-11-23 22:45:47,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:45:47,038 INFO L225 Difference]: With dead ends: 3083 [2024-11-23 22:45:47,038 INFO L226 Difference]: Without dead ends: 2638 [2024-11-23 22:45:47,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3872 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=2020, Invalid=11323, Unknown=1, NotChecked=228, Total=13572 [2024-11-23 22:45:47,041 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 798 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 1999 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 2176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:45:47,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 823 Invalid, 2176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1999 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-23 22:45:47,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2638 states. [2024-11-23 22:45:47,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2638 to 1414. [2024-11-23 22:45:47,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 1215 states have (on average 1.0740740740740742) internal successors, (1305), 1222 states have internal predecessors, (1305), 155 states have call successors, (155), 37 states have call predecessors, (155), 37 states have return successors, (155), 154 states have call predecessors, (155), 155 states have call successors, (155) [2024-11-23 22:45:47,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 1615 transitions. [2024-11-23 22:45:47,576 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 1615 transitions. Word has length 278 [2024-11-23 22:45:47,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:45:47,577 INFO L471 AbstractCegarLoop]: Abstraction has 1414 states and 1615 transitions. [2024-11-23 22:45:47,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.5) internal successors, (210), 28 states have internal predecessors, (210), 12 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 13 states have call predecessors, (31), 12 states have call successors, (31) [2024-11-23 22:45:47,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 1615 transitions. [2024-11-23 22:45:47,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-23 22:45:47,580 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:45:47,580 INFO L218 NwaCegarLoop]: trace histogram [29, 29, 29, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:45:47,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2024-11-23 22:45:47,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:45:47,780 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:45:47,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:45:47,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1808630888, now seen corresponding path program 3 times [2024-11-23 22:45:47,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:45:47,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792547004] [2024-11-23 22:45:47,781 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:45:47,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:45:47,858 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-23 22:45:47,858 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:45:50,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2018 backedges. 0 proven. 394 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-11-23 22:45:50,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:45:50,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792547004] [2024-11-23 22:45:50,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792547004] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:45:50,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670658613] [2024-11-23 22:45:50,157 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:45:50,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:45:50,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:45:50,159 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:45:50,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2024-11-23 22:45:50,538 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-23 22:45:50,539 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:45:50,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-23 22:45:50,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:46:02,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2018 backedges. 399 proven. 219 refuted. 0 times theorem prover too weak. 1400 trivial. 0 not checked. [2024-11-23 22:46:02,235 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:46:03,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670658613] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:46:03,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:46:03,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 29] total 60 [2024-11-23 22:46:03,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071378927] [2024-11-23 22:46:03,178 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:46:03,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-23 22:46:03,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:46:03,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-23 22:46:03,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=364, Invalid=3542, Unknown=0, NotChecked=0, Total=3906 [2024-11-23 22:46:03,180 INFO L87 Difference]: Start difference. First operand 1414 states and 1615 transitions. Second operand has 60 states, 60 states have (on average 4.933333333333334) internal successors, (296), 58 states have internal predecessors, (296), 21 states have call successors, (55), 1 states have call predecessors, (55), 2 states have return successors, (55), 22 states have call predecessors, (55), 21 states have call successors, (55) [2024-11-23 22:46:37,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:46:37,385 INFO L93 Difference]: Finished difference Result 1892 states and 2170 transitions. [2024-11-23 22:46:37,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2024-11-23 22:46:37,386 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 4.933333333333334) internal successors, (296), 58 states have internal predecessors, (296), 21 states have call successors, (55), 1 states have call predecessors, (55), 2 states have return successors, (55), 22 states have call predecessors, (55), 21 states have call successors, (55) Word has length 293 [2024-11-23 22:46:37,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:46:37,389 INFO L225 Difference]: With dead ends: 1892 [2024-11-23 22:46:37,389 INFO L226 Difference]: Without dead ends: 1885 [2024-11-23 22:46:37,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10393 ImplicationChecksByTransitivity, 22.8s TimeCoverageRelationStatistics Valid=2734, Invalid=29486, Unknown=0, NotChecked=0, Total=32220 [2024-11-23 22:46:37,395 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 447 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 7390 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 1537 SdHoareTripleChecker+Invalid, 7508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 7390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:46:37,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 1537 Invalid, 7508 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [118 Valid, 7390 Invalid, 0 Unknown, 0 Unchecked, 17.2s Time] [2024-11-23 22:46:37,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1885 states. [2024-11-23 22:46:38,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1885 to 1829. [2024-11-23 22:46:38,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1586 states have (on average 1.0775535939470366) internal successors, (1709), 1593 states have internal predecessors, (1709), 195 states have call successors, (195), 41 states have call predecessors, (195), 41 states have return successors, (195), 194 states have call predecessors, (195), 195 states have call successors, (195) [2024-11-23 22:46:38,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2099 transitions. [2024-11-23 22:46:38,240 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2099 transitions. Word has length 293 [2024-11-23 22:46:38,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:46:38,241 INFO L471 AbstractCegarLoop]: Abstraction has 1829 states and 2099 transitions. [2024-11-23 22:46:38,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 4.933333333333334) internal successors, (296), 58 states have internal predecessors, (296), 21 states have call successors, (55), 1 states have call predecessors, (55), 2 states have return successors, (55), 22 states have call predecessors, (55), 21 states have call successors, (55) [2024-11-23 22:46:38,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2099 transitions. [2024-11-23 22:46:38,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2024-11-23 22:46:38,245 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:46:38,245 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:46:38,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2024-11-23 22:46:38,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:46:38,446 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:46:38,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:46:38,446 INFO L85 PathProgramCache]: Analyzing trace with hash -767672361, now seen corresponding path program 1 times [2024-11-23 22:46:38,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:46:38,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024605777] [2024-11-23 22:46:38,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:46:38,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:46:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:46:40,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2472 backedges. 0 proven. 488 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-11-23 22:46:40,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:46:40,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024605777] [2024-11-23 22:46:40,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024605777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:46:40,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534050234] [2024-11-23 22:46:40,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:46:40,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:46:40,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:46:40,377 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:46:40,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-11-23 22:46:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:46:40,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-23 22:46:40,510 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:46:42,048 INFO L134 CoverageAnalysis]: Checked inductivity of 2472 backedges. 0 proven. 2360 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-23 22:46:42,048 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:46:45,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2472 backedges. 0 proven. 488 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-11-23 22:46:45,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534050234] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:46:45,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:46:45,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 27, 28] total 57 [2024-11-23 22:46:45,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251606555] [2024-11-23 22:46:45,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:46:45,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-11-23 22:46:45,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:46:45,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-11-23 22:46:45,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=685, Invalid=2507, Unknown=0, NotChecked=0, Total=3192 [2024-11-23 22:46:45,376 INFO L87 Difference]: Start difference. First operand 1829 states and 2099 transitions. Second operand has 57 states, 57 states have (on average 6.368421052631579) internal successors, (363), 57 states have internal predecessors, (363), 24 states have call successors, (96), 13 states have call predecessors, (96), 13 states have return successors, (96), 24 states have call predecessors, (96), 24 states have call successors, (96) [2024-11-23 22:46:53,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:46:53,345 INFO L93 Difference]: Finished difference Result 2741 states and 3144 transitions. [2024-11-23 22:46:53,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2024-11-23 22:46:53,345 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 6.368421052631579) internal successors, (363), 57 states have internal predecessors, (363), 24 states have call successors, (96), 13 states have call predecessors, (96), 13 states have return successors, (96), 24 states have call predecessors, (96), 24 states have call successors, (96) Word has length 320 [2024-11-23 22:46:53,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:46:53,348 INFO L225 Difference]: With dead ends: 2741 [2024-11-23 22:46:53,349 INFO L226 Difference]: Without dead ends: 2495 [2024-11-23 22:46:53,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 729 GetRequests, 612 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3856 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=3031, Invalid=11011, Unknown=0, NotChecked=0, Total=14042 [2024-11-23 22:46:53,351 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 585 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:46:53,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 931 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 22:46:53,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2495 states. [2024-11-23 22:46:54,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2495 to 2201. [2024-11-23 22:46:54,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2201 states, 1912 states have (on average 1.0685146443514644) internal successors, (2043), 1921 states have internal predecessors, (2043), 231 states have call successors, (231), 51 states have call predecessors, (231), 51 states have return successors, (231), 228 states have call predecessors, (231), 231 states have call successors, (231) [2024-11-23 22:46:54,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 2505 transitions. [2024-11-23 22:46:54,396 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 2505 transitions. Word has length 320 [2024-11-23 22:46:54,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:46:54,397 INFO L471 AbstractCegarLoop]: Abstraction has 2201 states and 2505 transitions. [2024-11-23 22:46:54,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 6.368421052631579) internal successors, (363), 57 states have internal predecessors, (363), 24 states have call successors, (96), 13 states have call predecessors, (96), 13 states have return successors, (96), 24 states have call predecessors, (96), 24 states have call successors, (96) [2024-11-23 22:46:54,397 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 2505 transitions. [2024-11-23 22:46:54,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-11-23 22:46:54,400 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:46:54,400 INFO L218 NwaCegarLoop]: trace histogram [37, 37, 37, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:46:54,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2024-11-23 22:46:54,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:46:54,601 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:46:54,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:46:54,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1463938800, now seen corresponding path program 2 times [2024-11-23 22:46:54,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:46:54,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6453516] [2024-11-23 22:46:54,602 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:46:54,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:46:54,631 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:46:54,631 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:46:57,284 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2024-11-23 22:46:57,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:46:57,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6453516] [2024-11-23 22:46:57,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6453516] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:46:57,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462391929] [2024-11-23 22:46:57,285 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:46:57,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:46:57,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:46:57,287 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:46:57,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-11-23 22:46:57,434 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:46:57,434 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:46:57,436 INFO L256 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-23 22:46:57,438 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:46:58,843 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 3208 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-23 22:46:58,843 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:47:03,069 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2024-11-23 22:47:03,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462391929] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:47:03,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:47:03,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 31, 32] total 67 [2024-11-23 22:47:03,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419583659] [2024-11-23 22:47:03,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:47:03,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-11-23 22:47:03,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:47:03,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-11-23 22:47:03,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=938, Invalid=3484, Unknown=0, NotChecked=0, Total=4422 [2024-11-23 22:47:03,073 INFO L87 Difference]: Start difference. First operand 2201 states and 2505 transitions. Second operand has 67 states, 67 states have (on average 6.373134328358209) internal successors, (427), 67 states have internal predecessors, (427), 28 states have call successors, (111), 15 states have call predecessors, (111), 15 states have return successors, (111), 28 states have call predecessors, (111), 28 states have call successors, (111) [2024-11-23 22:47:11,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:47:11,776 INFO L93 Difference]: Finished difference Result 3241 states and 3701 transitions. [2024-11-23 22:47:11,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2024-11-23 22:47:11,777 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 6.373134328358209) internal successors, (427), 67 states have internal predecessors, (427), 28 states have call successors, (111), 15 states have call predecessors, (111), 15 states have return successors, (111), 28 states have call predecessors, (111), 28 states have call successors, (111) Word has length 372 [2024-11-23 22:47:11,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:47:11,783 INFO L225 Difference]: With dead ends: 3241 [2024-11-23 22:47:11,783 INFO L226 Difference]: Without dead ends: 2995 [2024-11-23 22:47:11,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 848 GetRequests, 712 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5550 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=4011, Invalid=14895, Unknown=0, NotChecked=0, Total=18906 [2024-11-23 22:47:11,787 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 684 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:47:11,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 940 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 22:47:11,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2024-11-23 22:47:13,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 2777. [2024-11-23 22:47:13,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2777 states, 2418 states have (on average 1.0612076095947063) internal successors, (2566), 2431 states have internal predecessors, (2566), 287 states have call successors, (287), 65 states have call predecessors, (287), 65 states have return successors, (287), 280 states have call predecessors, (287), 287 states have call successors, (287) [2024-11-23 22:47:13,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2777 states to 2777 states and 3140 transitions. [2024-11-23 22:47:13,190 INFO L78 Accepts]: Start accepts. Automaton has 2777 states and 3140 transitions. Word has length 372 [2024-11-23 22:47:13,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:47:13,190 INFO L471 AbstractCegarLoop]: Abstraction has 2777 states and 3140 transitions. [2024-11-23 22:47:13,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 6.373134328358209) internal successors, (427), 67 states have internal predecessors, (427), 28 states have call successors, (111), 15 states have call predecessors, (111), 15 states have return successors, (111), 28 states have call predecessors, (111), 28 states have call successors, (111) [2024-11-23 22:47:13,191 INFO L276 IsEmpty]: Start isEmpty. Operand 2777 states and 3140 transitions. [2024-11-23 22:47:13,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-11-23 22:47:13,195 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:47:13,196 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:47:13,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2024-11-23 22:47:13,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:47:13,396 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:47:13,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:47:13,397 INFO L85 PathProgramCache]: Analyzing trace with hash 108449674, now seen corresponding path program 2 times [2024-11-23 22:47:13,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:47:13,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488722121] [2024-11-23 22:47:13,397 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:47:13,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:47:13,416 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 22:47:13,416 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:47:13,670 INFO L134 CoverageAnalysis]: Checked inductivity of 4326 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 4233 trivial. 0 not checked. [2024-11-23 22:47:13,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:47:13,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488722121] [2024-11-23 22:47:13,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488722121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:47:13,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:47:13,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 22:47:13,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041493478] [2024-11-23 22:47:13,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:47:13,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:47:13,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:47:13,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:47:13,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:47:13,672 INFO L87 Difference]: Start difference. First operand 2777 states and 3140 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-23 22:47:15,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:47:15,112 INFO L93 Difference]: Finished difference Result 2777 states and 3140 transitions. [2024-11-23 22:47:15,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:47:15,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 421 [2024-11-23 22:47:15,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:47:15,116 INFO L225 Difference]: With dead ends: 2777 [2024-11-23 22:47:15,117 INFO L226 Difference]: Without dead ends: 2776 [2024-11-23 22:47:15,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:47:15,117 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 17 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:47:15,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 192 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:47:15,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2776 states. [2024-11-23 22:47:16,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2776 to 2732. [2024-11-23 22:47:16,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2732 states, 2374 states have (on average 1.056866048862679) internal successors, (2509), 2390 states have internal predecessors, (2509), 287 states have call successors, (287), 65 states have call predecessors, (287), 65 states have return successors, (287), 276 states have call predecessors, (287), 287 states have call successors, (287) [2024-11-23 22:47:16,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2732 states to 2732 states and 3083 transitions. [2024-11-23 22:47:16,701 INFO L78 Accepts]: Start accepts. Automaton has 2732 states and 3083 transitions. Word has length 421 [2024-11-23 22:47:16,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:47:16,701 INFO L471 AbstractCegarLoop]: Abstraction has 2732 states and 3083 transitions. [2024-11-23 22:47:16,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-23 22:47:16,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2732 states and 3083 transitions. [2024-11-23 22:47:16,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2024-11-23 22:47:16,706 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:47:16,706 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:47:16,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2024-11-23 22:47:16,706 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:47:16,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:47:16,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1008913481, now seen corresponding path program 3 times [2024-11-23 22:47:16,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:47:16,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117754433] [2024-11-23 22:47:16,707 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:47:16,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:47:16,843 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2024-11-23 22:47:16,844 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:47:20,785 INFO L134 CoverageAnalysis]: Checked inductivity of 4332 backedges. 0 proven. 888 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-23 22:47:20,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:47:20,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117754433] [2024-11-23 22:47:20,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117754433] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:47:20,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777865504] [2024-11-23 22:47:20,785 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:47:20,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:47:20,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:47:20,788 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:47:20,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-11-23 22:47:21,291 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2024-11-23 22:47:21,291 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:47:21,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-23 22:47:21,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:47:24,246 INFO L134 CoverageAnalysis]: Checked inductivity of 4332 backedges. 0 proven. 4188 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-23 22:47:24,246 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:47:29,936 INFO L134 CoverageAnalysis]: Checked inductivity of 4332 backedges. 0 proven. 888 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-23 22:47:29,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777865504] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:47:29,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:47:29,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 35, 36] total 91 [2024-11-23 22:47:29,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96184622] [2024-11-23 22:47:29,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:47:29,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2024-11-23 22:47:29,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:47:29,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2024-11-23 22:47:29,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1633, Invalid=6557, Unknown=0, NotChecked=0, Total=8190 [2024-11-23 22:47:29,940 INFO L87 Difference]: Start difference. First operand 2732 states and 3083 transitions. Second operand has 91 states, 91 states have (on average 6.032967032967033) internal successors, (549), 91 states have internal predecessors, (549), 35 states have call successors, (124), 17 states have call predecessors, (124), 17 states have return successors, (124), 35 states have call predecessors, (124), 35 states have call successors, (124) [2024-11-23 22:47:41,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:47:41,408 INFO L93 Difference]: Finished difference Result 3844 states and 4340 transitions. [2024-11-23 22:47:41,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2024-11-23 22:47:41,409 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 91 states have (on average 6.032967032967033) internal successors, (549), 91 states have internal predecessors, (549), 35 states have call successors, (124), 17 states have call predecessors, (124), 17 states have return successors, (124), 35 states have call predecessors, (124), 35 states have call successors, (124) Word has length 424 [2024-11-23 22:47:41,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:47:41,416 INFO L225 Difference]: With dead ends: 3844 [2024-11-23 22:47:41,416 INFO L226 Difference]: Without dead ends: 3621 [2024-11-23 22:47:41,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 970 GetRequests, 803 SyntacticMatches, 2 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8951 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=5555, Invalid=22167, Unknown=0, NotChecked=0, Total=27722 [2024-11-23 22:47:41,419 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 902 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:47:41,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [902 Valid, 1201 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 22:47:41,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3621 states. [2024-11-23 22:47:43,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3621 to 3376. [2024-11-23 22:47:43,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3376 states, 2943 states have (on average 1.053007135575943) internal successors, (3099), 2961 states have internal predecessors, (3099), 347 states have call successors, (347), 80 states have call predecessors, (347), 80 states have return successors, (347), 334 states have call predecessors, (347), 347 states have call successors, (347) [2024-11-23 22:47:43,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3376 states to 3376 states and 3793 transitions. [2024-11-23 22:47:43,449 INFO L78 Accepts]: Start accepts. Automaton has 3376 states and 3793 transitions. Word has length 424 [2024-11-23 22:47:43,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:47:43,449 INFO L471 AbstractCegarLoop]: Abstraction has 3376 states and 3793 transitions. [2024-11-23 22:47:43,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 91 states have (on average 6.032967032967033) internal successors, (549), 91 states have internal predecessors, (549), 35 states have call successors, (124), 17 states have call predecessors, (124), 17 states have return successors, (124), 35 states have call predecessors, (124), 35 states have call successors, (124) [2024-11-23 22:47:43,449 INFO L276 IsEmpty]: Start isEmpty. Operand 3376 states and 3793 transitions. [2024-11-23 22:47:43,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-11-23 22:47:43,454 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:47:43,454 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:47:43,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2024-11-23 22:47:43,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:47:43,654 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:47:43,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:47:43,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1715419166, now seen corresponding path program 4 times [2024-11-23 22:47:43,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:47:43,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124873449] [2024-11-23 22:47:43,655 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 22:47:43,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:47:43,694 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 22:47:43,694 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:47:49,690 INFO L134 CoverageAnalysis]: Checked inductivity of 5460 backedges. 0 proven. 1136 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2024-11-23 22:47:49,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:47:49,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124873449] [2024-11-23 22:47:49,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124873449] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:47:49,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514528086] [2024-11-23 22:47:49,691 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 22:47:49,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:47:49,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:47:49,694 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:47:49,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-11-23 22:47:49,905 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 22:47:49,905 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:47:49,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-23 22:47:49,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:47:52,266 INFO L134 CoverageAnalysis]: Checked inductivity of 5460 backedges. 0 proven. 5300 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-23 22:47:52,266 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:47:59,638 INFO L134 CoverageAnalysis]: Checked inductivity of 5460 backedges. 0 proven. 1136 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2024-11-23 22:47:59,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514528086] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:47:59,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:47:59,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 39, 40] total 98 [2024-11-23 22:47:59,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687276086] [2024-11-23 22:47:59,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:47:59,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2024-11-23 22:47:59,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:47:59,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2024-11-23 22:47:59,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2175, Invalid=7331, Unknown=0, NotChecked=0, Total=9506 [2024-11-23 22:47:59,643 INFO L87 Difference]: Start difference. First operand 3376 states and 3793 transitions. Second operand has 98 states, 98 states have (on average 5.887755102040816) internal successors, (577), 98 states have internal predecessors, (577), 36 states have call successors, (141), 19 states have call predecessors, (141), 19 states have return successors, (141), 36 states have call predecessors, (141), 36 states have call successors, (141) [2024-11-23 22:48:13,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:48:13,649 INFO L93 Difference]: Finished difference Result 4482 states and 5032 transitions. [2024-11-23 22:48:13,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2024-11-23 22:48:13,650 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 5.887755102040816) internal successors, (577), 98 states have internal predecessors, (577), 36 states have call successors, (141), 19 states have call predecessors, (141), 19 states have return successors, (141), 36 states have call predecessors, (141), 36 states have call successors, (141) Word has length 476 [2024-11-23 22:48:13,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:48:13,656 INFO L225 Difference]: With dead ends: 4482 [2024-11-23 22:48:13,656 INFO L226 Difference]: Without dead ends: 4259 [2024-11-23 22:48:13,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1083 GetRequests, 912 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9810 ImplicationChecksByTransitivity, 18.4s TimeCoverageRelationStatistics Valid=6239, Invalid=23517, Unknown=0, NotChecked=0, Total=29756 [2024-11-23 22:48:13,660 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 785 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:48:13,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 1007 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-23 22:48:13,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4259 states. [2024-11-23 22:48:16,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4259 to 4046. [2024-11-23 22:48:16,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4046 states, 3533 states have (on average 1.0484007925275969) internal successors, (3704), 3552 states have internal predecessors, (3704), 407 states have call successors, (407), 100 states have call predecessors, (407), 100 states have return successors, (407), 393 states have call predecessors, (407), 407 states have call successors, (407) [2024-11-23 22:48:16,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4046 states to 4046 states and 4518 transitions. [2024-11-23 22:48:16,368 INFO L78 Accepts]: Start accepts. Automaton has 4046 states and 4518 transitions. Word has length 476 [2024-11-23 22:48:16,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:48:16,369 INFO L471 AbstractCegarLoop]: Abstraction has 4046 states and 4518 transitions. [2024-11-23 22:48:16,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 5.887755102040816) internal successors, (577), 98 states have internal predecessors, (577), 36 states have call successors, (141), 19 states have call predecessors, (141), 19 states have return successors, (141), 36 states have call predecessors, (141), 36 states have call successors, (141) [2024-11-23 22:48:16,369 INFO L276 IsEmpty]: Start isEmpty. Operand 4046 states and 4518 transitions. [2024-11-23 22:48:16,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2024-11-23 22:48:16,379 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:48:16,379 INFO L218 NwaCegarLoop]: trace histogram [57, 57, 57, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 1, 1, 1] [2024-11-23 22:48:16,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2024-11-23 22:48:16,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:48:16,580 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:48:16,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:48:16,580 INFO L85 PathProgramCache]: Analyzing trace with hash -2120648055, now seen corresponding path program 3 times [2024-11-23 22:48:16,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:48:16,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805391910] [2024-11-23 22:48:16,580 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:48:16,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:48:16,635 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2024-11-23 22:48:16,635 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:48:17,961 INFO L134 CoverageAnalysis]: Checked inductivity of 8778 backedges. 0 proven. 2394 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2024-11-23 22:48:17,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:48:17,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805391910] [2024-11-23 22:48:17,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805391910] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:48:17,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312603434] [2024-11-23 22:48:17,961 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 22:48:17,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:48:17,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:48:17,963 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:48:17,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2024-11-23 22:48:18,041 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-23 22:48:18,041 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:48:18,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 22:48:18,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:48:19,544 INFO L134 CoverageAnalysis]: Checked inductivity of 8778 backedges. 168 proven. 90 refuted. 0 times theorem prover too weak. 8520 trivial. 0 not checked. [2024-11-23 22:48:19,544 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:48:19,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312603434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:48:19,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:48:19,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 6] total 25 [2024-11-23 22:48:19,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919814179] [2024-11-23 22:48:19,837 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:48:19,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-23 22:48:19,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:48:19,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-23 22:48:19,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=491, Unknown=0, NotChecked=0, Total=756 [2024-11-23 22:48:19,839 INFO L87 Difference]: Start difference. First operand 4046 states and 4518 transitions. Second operand has 26 states, 25 states have (on average 9.36) internal successors, (234), 26 states have internal predecessors, (234), 20 states have call successors, (60), 1 states have call predecessors, (60), 2 states have return successors, (61), 21 states have call predecessors, (61), 20 states have call successors, (61) [2024-11-23 22:48:29,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:48:29,579 INFO L93 Difference]: Finished difference Result 7130 states and 8031 transitions. [2024-11-23 22:48:29,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-23 22:48:29,580 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 9.36) internal successors, (234), 26 states have internal predecessors, (234), 20 states have call successors, (60), 1 states have call predecessors, (60), 2 states have return successors, (61), 21 states have call predecessors, (61), 20 states have call successors, (61) Word has length 496 [2024-11-23 22:48:29,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:48:29,590 INFO L225 Difference]: With dead ends: 7130 [2024-11-23 22:48:29,590 INFO L226 Difference]: Without dead ends: 7129 [2024-11-23 22:48:29,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1105 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1525, Invalid=3305, Unknown=0, NotChecked=0, Total=4830 [2024-11-23 22:48:29,592 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 2364 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2366 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:48:29,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2366 Valid, 568 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-23 22:48:29,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7129 states. [2024-11-23 22:48:32,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7129 to 4045. [2024-11-23 22:48:32,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4045 states, 3533 states have (on average 1.0472686102462496) internal successors, (3700), 3551 states have internal predecessors, (3700), 407 states have call successors, (407), 100 states have call predecessors, (407), 100 states have return successors, (407), 393 states have call predecessors, (407), 407 states have call successors, (407) [2024-11-23 22:48:32,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4045 states to 4045 states and 4514 transitions. [2024-11-23 22:48:32,184 INFO L78 Accepts]: Start accepts. Automaton has 4045 states and 4514 transitions. Word has length 496 [2024-11-23 22:48:32,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:48:32,184 INFO L471 AbstractCegarLoop]: Abstraction has 4045 states and 4514 transitions. [2024-11-23 22:48:32,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 9.36) internal successors, (234), 26 states have internal predecessors, (234), 20 states have call successors, (60), 1 states have call predecessors, (60), 2 states have return successors, (61), 21 states have call predecessors, (61), 20 states have call successors, (61) [2024-11-23 22:48:32,185 INFO L276 IsEmpty]: Start isEmpty. Operand 4045 states and 4514 transitions. [2024-11-23 22:48:32,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2024-11-23 22:48:32,191 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:48:32,191 INFO L218 NwaCegarLoop]: trace histogram [52, 52, 52, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:48:32,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2024-11-23 22:48:32,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2024-11-23 22:48:32,392 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:48:32,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:48:32,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1043344965, now seen corresponding path program 5 times [2024-11-23 22:48:32,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:48:32,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185615238] [2024-11-23 22:48:32,393 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 22:48:32,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:48:32,597 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) [2024-11-23 22:48:32,597 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:48:36,803 INFO L134 CoverageAnalysis]: Checked inductivity of 6720 backedges. 0 proven. 1416 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2024-11-23 22:48:36,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:48:36,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185615238] [2024-11-23 22:48:36,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185615238] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:48:36,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690989886] [2024-11-23 22:48:36,804 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 22:48:36,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:48:36,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:48:36,806 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:48:36,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2024-11-23 22:48:37,408 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) [2024-11-23 22:48:37,408 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:48:37,413 INFO L256 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-23 22:48:37,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:48:39,627 INFO L134 CoverageAnalysis]: Checked inductivity of 6720 backedges. 0 proven. 6544 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2024-11-23 22:48:39,628 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:48:46,562 INFO L134 CoverageAnalysis]: Checked inductivity of 6720 backedges. 0 proven. 1416 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2024-11-23 22:48:46,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690989886] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:48:46,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:48:46,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 43, 44] total 88 [2024-11-23 22:48:46,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800572862] [2024-11-23 22:48:46,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:48:46,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2024-11-23 22:48:46,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:48:46,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2024-11-23 22:48:46,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1576, Invalid=6080, Unknown=0, NotChecked=0, Total=7656 [2024-11-23 22:48:46,566 INFO L87 Difference]: Start difference. First operand 4045 states and 4514 transitions. Second operand has 88 states, 88 states have (on average 6.829545454545454) internal successors, (601), 88 states have internal predecessors, (601), 40 states have call successors, (156), 21 states have call predecessors, (156), 21 states have return successors, (156), 40 states have call predecessors, (156), 40 states have call successors, (156) [2024-11-23 22:49:03,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:49:03,313 INFO L93 Difference]: Finished difference Result 5735 states and 6449 transitions. [2024-11-23 22:49:03,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2024-11-23 22:49:03,314 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 88 states have (on average 6.829545454545454) internal successors, (601), 88 states have internal predecessors, (601), 40 states have call successors, (156), 21 states have call predecessors, (156), 21 states have return successors, (156), 40 states have call predecessors, (156), 40 states have call successors, (156) Word has length 528 [2024-11-23 22:49:03,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:49:03,323 INFO L225 Difference]: With dead ends: 5735 [2024-11-23 22:49:03,323 INFO L226 Difference]: Without dead ends: 5511 [2024-11-23 22:49:03,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1201 GetRequests, 1014 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9994 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=7651, Invalid=27881, Unknown=0, NotChecked=0, Total=35532 [2024-11-23 22:49:03,328 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 1082 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-23 22:49:03,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 1466 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-23 22:49:03,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5511 states. [2024-11-23 22:49:06,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5511 to 5205. [2024-11-23 22:49:06,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 4560 states have (on average 1.050219298245614) internal successors, (4789), 4579 states have internal predecessors, (4789), 517 states have call successors, (517), 123 states have call predecessors, (517), 123 states have return successors, (517), 502 states have call predecessors, (517), 517 states have call successors, (517) [2024-11-23 22:49:06,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 5823 transitions. [2024-11-23 22:49:06,679 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 5823 transitions. Word has length 528 [2024-11-23 22:49:06,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:49:06,679 INFO L471 AbstractCegarLoop]: Abstraction has 5205 states and 5823 transitions. [2024-11-23 22:49:06,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 6.829545454545454) internal successors, (601), 88 states have internal predecessors, (601), 40 states have call successors, (156), 21 states have call predecessors, (156), 21 states have return successors, (156), 40 states have call predecessors, (156), 40 states have call successors, (156) [2024-11-23 22:49:06,680 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 5823 transitions. [2024-11-23 22:49:06,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2024-11-23 22:49:06,687 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:49:06,687 INFO L218 NwaCegarLoop]: trace histogram [57, 57, 57, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:49:06,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2024-11-23 22:49:06,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2024-11-23 22:49:06,887 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-23 22:49:06,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:49:06,888 INFO L85 PathProgramCache]: Analyzing trace with hash -304621100, now seen corresponding path program 6 times [2024-11-23 22:49:06,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:49:06,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734307660] [2024-11-23 22:49:06,888 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 22:49:06,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:49:07,119 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 23 check-sat command(s) [2024-11-23 22:49:07,119 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:49:13,278 INFO L134 CoverageAnalysis]: Checked inductivity of 8112 backedges. 0 proven. 1728 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2024-11-23 22:49:13,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:49:13,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734307660] [2024-11-23 22:49:13,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734307660] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:49:13,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865927167] [2024-11-23 22:49:13,278 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 22:49:13,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:49:13,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:49:13,280 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:49:13,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8bf588-463a-441b-8d79-fbb926f3d9b9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2024-11-23 22:49:14,033 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 23 check-sat command(s) [2024-11-23 22:49:14,034 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:49:14,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-23 22:49:14,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:49:17,803 INFO L134 CoverageAnalysis]: Checked inductivity of 8112 backedges. 0 proven. 7920 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-23 22:49:17,803 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:49:27,168 INFO L134 CoverageAnalysis]: Checked inductivity of 8112 backedges. 0 proven. 1728 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2024-11-23 22:49:27,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865927167] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:49:27,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:49:27,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 47, 48] total 113 [2024-11-23 22:49:27,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515863769] [2024-11-23 22:49:27,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:49:27,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2024-11-23 22:49:27,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:49:27,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2024-11-23 22:49:27,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2431, Invalid=10225, Unknown=0, NotChecked=0, Total=12656 [2024-11-23 22:49:27,173 INFO L87 Difference]: Start difference. First operand 5205 states and 5823 transitions. Second operand has 113 states, 113 states have (on average 6.415929203539823) internal successors, (725), 113 states have internal predecessors, (725), 47 states have call successors, (169), 23 states have call predecessors, (169), 23 states have return successors, (169), 47 states have call predecessors, (169), 47 states have call successors, (169)