./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB --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 357c28cbcf8a6aaf949faeabbb5ae0b19b92db6bb2faeba12cd91e7c958ae977 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:42:10,326 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:42:10,413 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:42:10,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:42:10,420 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:42:10,449 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:42:10,449 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:42:10,450 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:42:10,450 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:42:10,450 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:42:10,450 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:42:10,450 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:42:10,451 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:42:10,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:42:10,451 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:42:10,451 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:42:10,451 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:42:10,451 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:42:10,452 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:42:10,452 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:42:10,452 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:42:10,452 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:42:10,452 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:42:10,452 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:42:10,452 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:42:10,452 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:42:10,453 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:42:10,453 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:42:10,453 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:42:10,453 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:42:10,453 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:42:10,453 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:42:10,453 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:42:10,453 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:42:10,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:42:10,454 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:42:10,454 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:42:10,454 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:42:10,454 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:42:10,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:42:10,454 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:42:10,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:42:10,455 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:42:10,455 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:42:10,455 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:42:10,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:42:10,455 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:42:10,455 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:42:10,455 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:42:10,456 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:42:10,456 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_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 357c28cbcf8a6aaf949faeabbb5ae0b19b92db6bb2faeba12cd91e7c958ae977 [2024-11-28 04:42:10,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:42:10,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:42:10,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:42:10,810 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:42:10,810 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:42:10,812 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound10.c [2024-11-28 04:42:13,918 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/data/e03057572/7115ef885a774792a60532b733d472eb/FLAG5a2be3882 [2024-11-28 04:42:14,254 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:42:14,254 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound10.c [2024-11-28 04:42:14,266 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/data/e03057572/7115ef885a774792a60532b733d472eb/FLAG5a2be3882 [2024-11-28 04:42:14,284 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/data/e03057572/7115ef885a774792a60532b733d472eb [2024-11-28 04:42:14,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:42:14,288 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:42:14,290 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:42:14,290 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:42:14,296 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:42:14,297 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:14" (1/1) ... [2024-11-28 04:42:14,298 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1971390e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:14, skipping insertion in model container [2024-11-28 04:42:14,298 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:14" (1/1) ... [2024-11-28 04:42:14,315 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:42:14,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:42:14,551 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:42:14,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:42:14,585 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:42:14,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:14 WrapperNode [2024-11-28 04:42:14,586 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:42:14,587 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:42:14,587 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:42:14,587 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:42:14,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:14" (1/1) ... [2024-11-28 04:42:14,600 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:14" (1/1) ... [2024-11-28 04:42:14,619 INFO L138 Inliner]: procedures = 14, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2024-11-28 04:42:14,619 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:42:14,619 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:42:14,620 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:42:14,620 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:42:14,631 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:14" (1/1) ... [2024-11-28 04:42:14,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:14" (1/1) ... [2024-11-28 04:42:14,632 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:14" (1/1) ... [2024-11-28 04:42:14,651 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2024-11-28 04:42:14,651 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:14" (1/1) ... [2024-11-28 04:42:14,651 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:14" (1/1) ... [2024-11-28 04:42:14,658 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:14" (1/1) ... [2024-11-28 04:42:14,659 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:14" (1/1) ... [2024-11-28 04:42:14,666 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:14" (1/1) ... [2024-11-28 04:42:14,666 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:14" (1/1) ... [2024-11-28 04:42:14,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:14" (1/1) ... [2024-11-28 04:42:14,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:42:14,671 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:42:14,671 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:42:14,671 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:42:14,672 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:14" (1/1) ... [2024-11-28 04:42:14,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:42:14,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:14,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:14,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:42:14,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:42:14,741 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:42:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:42:14,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:42:14,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:42:14,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:42:14,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:42:14,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:42:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:42:14,804 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:42:14,806 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:42:15,080 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-28 04:42:15,081 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:42:15,093 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:42:15,094 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-28 04:42:15,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:15 BoogieIcfgContainer [2024-11-28 04:42:15,094 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:42:15,097 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:42:15,097 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:42:15,103 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:42:15,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:42:14" (1/3) ... [2024-11-28 04:42:15,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f5c725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:42:15, skipping insertion in model container [2024-11-28 04:42:15,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:14" (2/3) ... [2024-11-28 04:42:15,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f5c725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:42:15, skipping insertion in model container [2024-11-28 04:42:15,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:15" (3/3) ... [2024-11-28 04:42:15,107 INFO L128 eAbstractionObserver]: Analyzing ICFG lcm1_unwindbound10.c [2024-11-28 04:42:15,124 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:42:15,126 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG lcm1_unwindbound10.c that has 3 procedures, 47 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2024-11-28 04:42:15,197 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:42:15,218 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;@3654e95e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:42:15,218 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-28 04:42:15,223 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 35 states have internal predecessors, (46), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:42:15,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 04:42:15,230 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:15,231 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:15,231 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:42:15,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:15,238 INFO L85 PathProgramCache]: Analyzing trace with hash 2022069437, now seen corresponding path program 1 times [2024-11-28 04:42:15,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:15,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598307703] [2024-11-28 04:42:15,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:15,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:15,390 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:42:15,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:15,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598307703] [2024-11-28 04:42:15,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598307703] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:15,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320881517] [2024-11-28 04:42:15,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:15,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:15,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:15,394 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:15,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:42:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:15,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:42:15,510 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:15,523 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:42:15,523 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:42:15,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320881517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:42:15,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:42:15,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:42:15,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143633560] [2024-11-28 04:42:15,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:42:15,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:42:15,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:15,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:42:15,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:42:15,563 INFO L87 Difference]: Start difference. First operand has 47 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 35 states have internal predecessors, (46), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:42:15,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:15,584 INFO L93 Difference]: Finished difference Result 90 states and 132 transitions. [2024-11-28 04:42:15,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:42:15,586 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2024-11-28 04:42:15,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:15,593 INFO L225 Difference]: With dead ends: 90 [2024-11-28 04:42:15,593 INFO L226 Difference]: Without dead ends: 39 [2024-11-28 04:42:15,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:42:15,600 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:15,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:42:15,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-28 04:42:15,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-28 04:42:15,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 29 states have internal predecessors, (34), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 04:42:15,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2024-11-28 04:42:15,660 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 25 [2024-11-28 04:42:15,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:15,662 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2024-11-28 04:42:15,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:42:15,663 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2024-11-28 04:42:15,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 04:42:15,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:15,664 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:15,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:15,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:42:15,869 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:42:15,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:15,870 INFO L85 PathProgramCache]: Analyzing trace with hash -2112941507, now seen corresponding path program 1 times [2024-11-28 04:42:15,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:15,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945309038] [2024-11-28 04:42:15,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:15,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:16,158 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:42:16,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:16,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945309038] [2024-11-28 04:42:16,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945309038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:42:16,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:42:16,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:42:16,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788077154] [2024-11-28 04:42:16,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:42:16,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:42:16,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:16,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:42:16,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:42:16,164 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 04:42:16,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:16,260 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2024-11-28 04:42:16,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:42:16,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 25 [2024-11-28 04:42:16,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:16,263 INFO L225 Difference]: With dead ends: 45 [2024-11-28 04:42:16,263 INFO L226 Difference]: Without dead ends: 43 [2024-11-28 04:42:16,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:42:16,264 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 11 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:16,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 112 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:42:16,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-28 04:42:16,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2024-11-28 04:42:16,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 32 states have internal predecessors, (37), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 04:42:16,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2024-11-28 04:42:16,285 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 25 [2024-11-28 04:42:16,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:16,286 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2024-11-28 04:42:16,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 04:42:16,287 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2024-11-28 04:42:16,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-28 04:42:16,288 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:16,288 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:16,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:42:16,289 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:42:16,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:16,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1187336732, now seen corresponding path program 1 times [2024-11-28 04:42:16,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:16,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104279016] [2024-11-28 04:42:16,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:16,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:16,642 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:42:16,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:16,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104279016] [2024-11-28 04:42:16,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104279016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:42:16,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:42:16,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:42:16,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989772344] [2024-11-28 04:42:16,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:42:16,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:42:16,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:16,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:42:16,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:42:16,646 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 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) [2024-11-28 04:42:16,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:16,919 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2024-11-28 04:42:16,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:42:16,920 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 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 35 [2024-11-28 04:42:16,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:16,921 INFO L225 Difference]: With dead ends: 62 [2024-11-28 04:42:16,921 INFO L226 Difference]: Without dead ends: 61 [2024-11-28 04:42:16,922 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 [2024-11-28 04:42:16,922 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 28 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:16,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 177 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:42:16,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-28 04:42:16,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 55. [2024-11-28 04:42:16,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 42 states have internal predecessors, (50), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:42:16,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 68 transitions. [2024-11-28 04:42:16,932 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 68 transitions. Word has length 35 [2024-11-28 04:42:16,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:16,932 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 68 transitions. [2024-11-28 04:42:16,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 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) [2024-11-28 04:42:16,932 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 68 transitions. [2024-11-28 04:42:16,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-28 04:42:16,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:16,933 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:16,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:42:16,933 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:42:16,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:16,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1847266907, now seen corresponding path program 1 times [2024-11-28 04:42:16,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:16,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893844054] [2024-11-28 04:42:16,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:16,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:17,094 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:42:17,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:17,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893844054] [2024-11-28 04:42:17,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893844054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:42:17,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:42:17,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:42:17,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458369548] [2024-11-28 04:42:17,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:42:17,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:42:17,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:17,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:42:17,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:42:17,098 INFO L87 Difference]: Start difference. First operand 55 states and 68 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 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) [2024-11-28 04:42:17,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:17,278 INFO L93 Difference]: Finished difference Result 91 states and 111 transitions. [2024-11-28 04:42:17,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:42:17,278 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 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 36 [2024-11-28 04:42:17,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:17,280 INFO L225 Difference]: With dead ends: 91 [2024-11-28 04:42:17,280 INFO L226 Difference]: Without dead ends: 63 [2024-11-28 04:42:17,281 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 [2024-11-28 04:42:17,282 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 22 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:17,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 144 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:42:17,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-28 04:42:17,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-28 04:42:17,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 49 states have internal predecessors, (57), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:42:17,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2024-11-28 04:42:17,300 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 36 [2024-11-28 04:42:17,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:17,300 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2024-11-28 04:42:17,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 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) [2024-11-28 04:42:17,300 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2024-11-28 04:42:17,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 04:42:17,301 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:17,302 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-28 04:42:17,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:42:17,302 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:42:17,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:17,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1777757559, now seen corresponding path program 1 times [2024-11-28 04:42:17,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:17,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609907760] [2024-11-28 04:42:17,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:17,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:17,570 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:42:17,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:17,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609907760] [2024-11-28 04:42:17,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609907760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:42:17,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:42:17,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:42:17,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087382195] [2024-11-28 04:42:17,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:42:17,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:42:17,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:17,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:42:17,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:42:17,574 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:42:18,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:18,065 INFO L93 Difference]: Finished difference Result 81 states and 94 transitions. [2024-11-28 04:42:18,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:42:18,068 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 45 [2024-11-28 04:42:18,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:18,069 INFO L225 Difference]: With dead ends: 81 [2024-11-28 04:42:18,069 INFO L226 Difference]: Without dead ends: 80 [2024-11-28 04:42:18,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:42:18,071 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 40 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:18,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 232 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:42:18,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-28 04:42:18,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 73. [2024-11-28 04:42:18,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 52 states have (on average 1.3076923076923077) internal successors, (68), 57 states have internal predecessors, (68), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:42:18,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2024-11-28 04:42:18,089 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 45 [2024-11-28 04:42:18,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:18,089 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2024-11-28 04:42:18,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:42:18,089 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2024-11-28 04:42:18,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 04:42:18,091 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:18,091 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-28 04:42:18,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:42:18,091 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:42:18,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:18,092 INFO L85 PathProgramCache]: Analyzing trace with hash 724090606, now seen corresponding path program 1 times [2024-11-28 04:42:18,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:18,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125682689] [2024-11-28 04:42:18,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:18,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:18,388 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:42:18,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:18,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125682689] [2024-11-28 04:42:18,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125682689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:42:18,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:42:18,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:42:18,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545196111] [2024-11-28 04:42:18,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:42:18,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:42:18,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:18,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:42:18,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:42:18,397 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:42:18,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:18,688 INFO L93 Difference]: Finished difference Result 115 states and 139 transitions. [2024-11-28 04:42:18,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:42:18,689 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 46 [2024-11-28 04:42:18,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:18,690 INFO L225 Difference]: With dead ends: 115 [2024-11-28 04:42:18,690 INFO L226 Difference]: Without dead ends: 87 [2024-11-28 04:42:18,691 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:42:18,691 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 33 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:18,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 186 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:42:18,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-28 04:42:18,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83. [2024-11-28 04:42:18,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 65 states have internal predecessors, (77), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 04:42:18,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 99 transitions. [2024-11-28 04:42:18,715 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 99 transitions. Word has length 46 [2024-11-28 04:42:18,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:18,716 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 99 transitions. [2024-11-28 04:42:18,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:42:18,716 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 99 transitions. [2024-11-28 04:42:18,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 04:42:18,717 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:18,718 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-28 04:42:18,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:42:18,718 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:42:18,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:18,719 INFO L85 PathProgramCache]: Analyzing trace with hash 724128342, now seen corresponding path program 1 times [2024-11-28 04:42:18,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:18,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412394845] [2024-11-28 04:42:18,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:18,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:18,929 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:42:18,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:18,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412394845] [2024-11-28 04:42:18,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412394845] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:18,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974282487] [2024-11-28 04:42:18,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:18,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:18,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:18,933 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:18,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:42:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:19,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:42:19,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:19,213 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:42:19,214 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:19,452 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:42:19,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974282487] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:42:19,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:42:19,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-11-28 04:42:19,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721576941] [2024-11-28 04:42:19,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:19,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:42:19,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:19,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:42:19,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:42:19,456 INFO L87 Difference]: Start difference. First operand 83 states and 99 transitions. Second operand has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-28 04:42:20,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:20,409 INFO L93 Difference]: Finished difference Result 233 states and 283 transitions. [2024-11-28 04:42:20,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 04:42:20,410 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 46 [2024-11-28 04:42:20,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:20,414 INFO L225 Difference]: With dead ends: 233 [2024-11-28 04:42:20,414 INFO L226 Difference]: Without dead ends: 195 [2024-11-28 04:42:20,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2024-11-28 04:42:20,416 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 114 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:20,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 289 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:42:20,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-28 04:42:20,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 163. [2024-11-28 04:42:20,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 125 states have (on average 1.272) internal successors, (159), 130 states have internal predecessors, (159), 18 states have call successors, (18), 14 states have call predecessors, (18), 14 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:42:20,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 195 transitions. [2024-11-28 04:42:20,441 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 195 transitions. Word has length 46 [2024-11-28 04:42:20,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:20,442 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 195 transitions. [2024-11-28 04:42:20,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-28 04:42:20,442 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 195 transitions. [2024-11-28 04:42:20,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-28 04:42:20,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:20,443 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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] [2024-11-28 04:42:20,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:42:20,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-28 04:42:20,648 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:42:20,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:20,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1101872824, now seen corresponding path program 1 times [2024-11-28 04:42:20,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:20,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548110305] [2024-11-28 04:42:20,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:20,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:20,792 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:42:20,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:20,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548110305] [2024-11-28 04:42:20,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548110305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:42:20,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:42:20,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:42:20,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523517383] [2024-11-28 04:42:20,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:42:20,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:42:20,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:20,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:42:20,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:42:20,794 INFO L87 Difference]: Start difference. First operand 163 states and 195 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 04:42:21,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:21,001 INFO L93 Difference]: Finished difference Result 270 states and 329 transitions. [2024-11-28 04:42:21,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:42:21,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 55 [2024-11-28 04:42:21,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:21,003 INFO L225 Difference]: With dead ends: 270 [2024-11-28 04:42:21,005 INFO L226 Difference]: Without dead ends: 205 [2024-11-28 04:42:21,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:42:21,009 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 32 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:21,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 172 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:42:21,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-28 04:42:21,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 183. [2024-11-28 04:42:21,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 141 states have (on average 1.2907801418439717) internal successors, (182), 146 states have internal predecessors, (182), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 04:42:21,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 226 transitions. [2024-11-28 04:42:21,041 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 226 transitions. Word has length 55 [2024-11-28 04:42:21,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:21,042 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 226 transitions. [2024-11-28 04:42:21,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 04:42:21,042 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 226 transitions. [2024-11-28 04:42:21,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 04:42:21,043 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:21,043 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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] [2024-11-28 04:42:21,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:42:21,043 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:42:21,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:21,044 INFO L85 PathProgramCache]: Analyzing trace with hash 201782157, now seen corresponding path program 1 times [2024-11-28 04:42:21,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:21,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60210192] [2024-11-28 04:42:21,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:21,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:21,302 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:42:21,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:21,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60210192] [2024-11-28 04:42:21,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60210192] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:21,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734104094] [2024-11-28 04:42:21,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:21,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:21,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:21,306 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:21,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:42:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:21,373 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:42:21,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:21,566 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:42:21,566 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:21,842 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:42:21,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734104094] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:42:21,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:42:21,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 24 [2024-11-28 04:42:21,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156424473] [2024-11-28 04:42:21,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:21,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-28 04:42:21,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:21,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-28 04:42:21,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=469, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:42:21,845 INFO L87 Difference]: Start difference. First operand 183 states and 226 transitions. Second operand has 25 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 25 states have internal predecessors, (73), 11 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) [2024-11-28 04:42:23,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:23,300 INFO L93 Difference]: Finished difference Result 379 states and 473 transitions. [2024-11-28 04:42:23,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-28 04:42:23,301 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 25 states have internal predecessors, (73), 11 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) Word has length 56 [2024-11-28 04:42:23,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:23,303 INFO L225 Difference]: With dead ends: 379 [2024-11-28 04:42:23,303 INFO L226 Difference]: Without dead ends: 296 [2024-11-28 04:42:23,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=507, Invalid=1943, Unknown=0, NotChecked=0, Total=2450 [2024-11-28 04:42:23,305 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 175 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:23,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 327 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:42:23,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-11-28 04:42:23,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 263. [2024-11-28 04:42:23,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 206 states have (on average 1.2766990291262137) internal successors, (263), 211 states have internal predecessors, (263), 29 states have call successors, (29), 22 states have call predecessors, (29), 22 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-28 04:42:23,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 321 transitions. [2024-11-28 04:42:23,328 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 321 transitions. Word has length 56 [2024-11-28 04:42:23,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:23,329 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 321 transitions. [2024-11-28 04:42:23,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 25 states have internal predecessors, (73), 11 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) [2024-11-28 04:42:23,329 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 321 transitions. [2024-11-28 04:42:23,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-28 04:42:23,330 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:23,330 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1] [2024-11-28 04:42:23,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:42:23,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:23,531 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:42:23,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:23,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1708398527, now seen corresponding path program 1 times [2024-11-28 04:42:23,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:23,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915121661] [2024-11-28 04:42:23,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:23,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:23,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:23,739 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:42:23,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:23,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915121661] [2024-11-28 04:42:23,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915121661] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:23,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888616518] [2024-11-28 04:42:23,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:23,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:23,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:23,741 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:23,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:42:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:23,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:42:23,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:23,941 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:42:23,941 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:24,155 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:42:24,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888616518] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:42:24,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:42:24,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 21 [2024-11-28 04:42:24,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664810090] [2024-11-28 04:42:24,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:24,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 04:42:24,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:24,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 04:42:24,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:42:24,158 INFO L87 Difference]: Start difference. First operand 263 states and 321 transitions. Second operand has 21 states, 21 states have (on average 3.380952380952381) internal successors, (71), 21 states have internal predecessors, (71), 9 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2024-11-28 04:42:25,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:25,045 INFO L93 Difference]: Finished difference Result 471 states and 581 transitions. [2024-11-28 04:42:25,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 04:42:25,047 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.380952380952381) internal successors, (71), 21 states have internal predecessors, (71), 9 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) Word has length 59 [2024-11-28 04:42:25,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:25,049 INFO L225 Difference]: With dead ends: 471 [2024-11-28 04:42:25,050 INFO L226 Difference]: Without dead ends: 332 [2024-11-28 04:42:25,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=299, Invalid=1183, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 04:42:25,054 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 118 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:25,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 313 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:42:25,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-28 04:42:25,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 323. [2024-11-28 04:42:25,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 258 states have (on average 1.244186046511628) internal successors, (321), 263 states have internal predecessors, (321), 33 states have call successors, (33), 26 states have call predecessors, (33), 26 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 04:42:25,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 387 transitions. [2024-11-28 04:42:25,089 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 387 transitions. Word has length 59 [2024-11-28 04:42:25,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:25,090 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 387 transitions. [2024-11-28 04:42:25,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.380952380952381) internal successors, (71), 21 states have internal predecessors, (71), 9 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2024-11-28 04:42:25,091 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 387 transitions. [2024-11-28 04:42:25,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 04:42:25,093 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:25,093 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2024-11-28 04:42:25,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:25,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 04:42:25,294 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:42:25,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:25,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1681109111, now seen corresponding path program 1 times [2024-11-28 04:42:25,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:25,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115667909] [2024-11-28 04:42:25,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:25,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:25,626 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:42:25,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:25,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115667909] [2024-11-28 04:42:25,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115667909] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:25,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638634825] [2024-11-28 04:42:25,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:25,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:25,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:25,632 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:25,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:42:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:25,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:42:25,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:25,958 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:42:25,959 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:42:25,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638634825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:42:25,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:42:25,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 21 [2024-11-28 04:42:25,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263941076] [2024-11-28 04:42:25,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:42:25,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:42:25,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:25,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:42:25,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:42:25,963 INFO L87 Difference]: Start difference. First operand 323 states and 387 transitions. Second operand has 11 states, 10 states have (on average 4.0) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-28 04:42:26,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:26,418 INFO L93 Difference]: Finished difference Result 391 states and 469 transitions. [2024-11-28 04:42:26,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:42:26,418 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.0) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 65 [2024-11-28 04:42:26,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:26,421 INFO L225 Difference]: With dead ends: 391 [2024-11-28 04:42:26,421 INFO L226 Difference]: Without dead ends: 388 [2024-11-28 04:42:26,423 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=168, Invalid=824, Unknown=0, NotChecked=0, Total=992 [2024-11-28 04:42:26,425 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 59 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:26,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 141 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:42:26,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-28 04:42:26,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 293. [2024-11-28 04:42:26,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 234 states have (on average 1.1623931623931625) internal successors, (272), 237 states have internal predecessors, (272), 31 states have call successors, (31), 25 states have call predecessors, (31), 25 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-28 04:42:26,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 334 transitions. [2024-11-28 04:42:26,461 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 334 transitions. Word has length 65 [2024-11-28 04:42:26,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:26,461 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 334 transitions. [2024-11-28 04:42:26,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.0) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-28 04:42:26,462 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 334 transitions. [2024-11-28 04:42:26,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 04:42:26,463 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:26,464 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2024-11-28 04:42:26,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:42:26,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 04:42:26,668 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:42:26,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:26,668 INFO L85 PathProgramCache]: Analyzing trace with hash -574774844, now seen corresponding path program 1 times [2024-11-28 04:42:26,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:26,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291902316] [2024-11-28 04:42:26,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:26,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:26,926 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:42:26,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:26,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291902316] [2024-11-28 04:42:26,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291902316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:26,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890981105] [2024-11-28 04:42:26,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:26,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:26,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:26,930 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:26,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:42:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:27,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:42:27,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:27,231 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:42:27,231 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:27,556 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:42:27,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890981105] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:42:27,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:42:27,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 30 [2024-11-28 04:42:27,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365505387] [2024-11-28 04:42:27,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:27,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-28 04:42:27,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:27,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-28 04:42:27,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=740, Unknown=0, NotChecked=0, Total=930 [2024-11-28 04:42:27,561 INFO L87 Difference]: Start difference. First operand 293 states and 334 transitions. Second operand has 31 states, 30 states have (on average 3.033333333333333) internal successors, (91), 31 states have internal predecessors, (91), 14 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-28 04:42:29,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:29,230 INFO L93 Difference]: Finished difference Result 332 states and 381 transitions. [2024-11-28 04:42:29,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-28 04:42:29,231 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.033333333333333) internal successors, (91), 31 states have internal predecessors, (91), 14 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) Word has length 66 [2024-11-28 04:42:29,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:29,235 INFO L225 Difference]: With dead ends: 332 [2024-11-28 04:42:29,235 INFO L226 Difference]: Without dead ends: 331 [2024-11-28 04:42:29,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=715, Invalid=2945, Unknown=0, NotChecked=0, Total=3660 [2024-11-28 04:42:29,238 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 184 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:29,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 351 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:42:29,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-11-28 04:42:29,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 306. [2024-11-28 04:42:29,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 245 states have (on average 1.1591836734693877) internal successors, (284), 248 states have internal predecessors, (284), 32 states have call successors, (32), 26 states have call predecessors, (32), 26 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-28 04:42:29,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 348 transitions. [2024-11-28 04:42:29,298 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 348 transitions. Word has length 66 [2024-11-28 04:42:29,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:29,298 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 348 transitions. [2024-11-28 04:42:29,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.033333333333333) internal successors, (91), 31 states have internal predecessors, (91), 14 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-28 04:42:29,299 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 348 transitions. [2024-11-28 04:42:29,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 04:42:29,300 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:29,300 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:29,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 04:42:29,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 04:42:29,505 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:42:29,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:29,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1385122664, now seen corresponding path program 1 times [2024-11-28 04:42:29,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:29,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175379140] [2024-11-28 04:42:29,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:29,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:29,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:29,841 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:42:29,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:29,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175379140] [2024-11-28 04:42:29,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175379140] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:29,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404367918] [2024-11-28 04:42:29,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:29,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:29,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:29,844 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:29,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:42:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:29,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:42:29,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:30,083 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:42:30,083 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:30,386 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:42:30,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404367918] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:42:30,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:42:30,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 14] total 26 [2024-11-28 04:42:30,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149884031] [2024-11-28 04:42:30,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:30,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 04:42:30,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:30,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 04:42:30,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=495, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:42:30,390 INFO L87 Difference]: Start difference. First operand 306 states and 348 transitions. Second operand has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 11 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2024-11-28 04:42:31,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:31,322 INFO L93 Difference]: Finished difference Result 528 states and 611 transitions. [2024-11-28 04:42:31,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-28 04:42:31,323 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 11 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) Word has length 80 [2024-11-28 04:42:31,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:31,325 INFO L225 Difference]: With dead ends: 528 [2024-11-28 04:42:31,326 INFO L226 Difference]: Without dead ends: 369 [2024-11-28 04:42:31,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 146 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=512, Invalid=1380, Unknown=0, NotChecked=0, Total=1892 [2024-11-28 04:42:31,328 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 131 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:31,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 310 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:42:31,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-11-28 04:42:31,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 350. [2024-11-28 04:42:31,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 281 states have (on average 1.1530249110320285) internal successors, (324), 284 states have internal predecessors, (324), 36 states have call successors, (36), 30 states have call predecessors, (36), 30 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:42:31,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 396 transitions. [2024-11-28 04:42:31,382 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 396 transitions. Word has length 80 [2024-11-28 04:42:31,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:31,383 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 396 transitions. [2024-11-28 04:42:31,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 11 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2024-11-28 04:42:31,383 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 396 transitions. [2024-11-28 04:42:31,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 04:42:31,386 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:31,386 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:31,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 04:42:31,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 04:42:31,591 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:42:31,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:31,591 INFO L85 PathProgramCache]: Analyzing trace with hash -131064306, now seen corresponding path program 1 times [2024-11-28 04:42:31,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:31,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634589341] [2024-11-28 04:42:31,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:31,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:31,994 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:42:31,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:31,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634589341] [2024-11-28 04:42:31,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634589341] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:31,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578799704] [2024-11-28 04:42:31,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:31,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:31,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:31,997 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:32,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:42:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:32,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:42:32,072 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:42:32,452 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:32,982 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:42:32,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578799704] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:42:32,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:42:32,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 42 [2024-11-28 04:42:32,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780032274] [2024-11-28 04:42:32,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:32,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-28 04:42:32,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:32,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-28 04:42:32,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=1444, Unknown=0, NotChecked=0, Total=1806 [2024-11-28 04:42:32,986 INFO L87 Difference]: Start difference. First operand 350 states and 396 transitions. Second operand has 43 states, 42 states have (on average 3.0238095238095237) internal successors, (127), 43 states have internal predecessors, (127), 20 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) [2024-11-28 04:42:36,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:36,116 INFO L93 Difference]: Finished difference Result 766 states and 895 transitions. [2024-11-28 04:42:36,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-11-28 04:42:36,118 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 3.0238095238095237) internal successors, (127), 43 states have internal predecessors, (127), 20 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) Word has length 86 [2024-11-28 04:42:36,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:36,123 INFO L225 Difference]: With dead ends: 766 [2024-11-28 04:42:36,124 INFO L226 Difference]: Without dead ends: 607 [2024-11-28 04:42:36,126 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2133 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1770, Invalid=7350, Unknown=0, NotChecked=0, Total=9120 [2024-11-28 04:42:36,127 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 399 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:36,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 424 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 04:42:36,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-11-28 04:42:36,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 546. [2024-11-28 04:42:36,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 437 states have (on average 1.1762013729977117) internal successors, (514), 440 states have internal predecessors, (514), 56 states have call successors, (56), 50 states have call predecessors, (56), 50 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-28 04:42:36,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 626 transitions. [2024-11-28 04:42:36,181 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 626 transitions. Word has length 86 [2024-11-28 04:42:36,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:36,181 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 626 transitions. [2024-11-28 04:42:36,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 3.0238095238095237) internal successors, (127), 43 states have internal predecessors, (127), 20 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) [2024-11-28 04:42:36,182 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 626 transitions. [2024-11-28 04:42:36,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 04:42:36,183 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:36,183 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2024-11-28 04:42:36,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 04:42:36,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 04:42:36,388 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:42:36,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:36,388 INFO L85 PathProgramCache]: Analyzing trace with hash -2020837704, now seen corresponding path program 1 times [2024-11-28 04:42:36,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:36,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785687398] [2024-11-28 04:42:36,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:36,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:36,761 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:42:36,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:36,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785687398] [2024-11-28 04:42:36,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785687398] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:36,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380795524] [2024-11-28 04:42:36,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:36,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:36,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:36,765 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:36,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:42:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:36,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:42:36,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:37,139 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 3 proven. 96 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:42:37,139 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:37,715 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:42:37,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380795524] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:42:37,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:42:37,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 42 [2024-11-28 04:42:37,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904779689] [2024-11-28 04:42:37,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:37,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-28 04:42:37,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:37,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-28 04:42:37,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=1438, Unknown=0, NotChecked=0, Total=1806 [2024-11-28 04:42:37,718 INFO L87 Difference]: Start difference. First operand 546 states and 626 transitions. Second operand has 43 states, 42 states have (on average 3.0238095238095237) internal successors, (127), 43 states have internal predecessors, (127), 20 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) [2024-11-28 04:42:39,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:39,910 INFO L93 Difference]: Finished difference Result 716 states and 824 transitions. [2024-11-28 04:42:39,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-28 04:42:39,911 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 3.0238095238095237) internal successors, (127), 43 states have internal predecessors, (127), 20 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) Word has length 86 [2024-11-28 04:42:39,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:39,915 INFO L225 Difference]: With dead ends: 716 [2024-11-28 04:42:39,915 INFO L226 Difference]: Without dead ends: 713 [2024-11-28 04:42:39,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1845 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1656, Invalid=6716, Unknown=0, NotChecked=0, Total=8372 [2024-11-28 04:42:39,918 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 275 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:39,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 516 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:42:39,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-11-28 04:42:39,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 608. [2024-11-28 04:42:39,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 485 states have (on average 1.1835051546391753) internal successors, (574), 488 states have internal predecessors, (574), 63 states have call successors, (63), 57 states have call predecessors, (63), 57 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-28 04:42:39,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 700 transitions. [2024-11-28 04:42:39,979 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 700 transitions. Word has length 86 [2024-11-28 04:42:39,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:39,979 INFO L471 AbstractCegarLoop]: Abstraction has 608 states and 700 transitions. [2024-11-28 04:42:39,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 3.0238095238095237) internal successors, (127), 43 states have internal predecessors, (127), 20 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) [2024-11-28 04:42:39,980 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 700 transitions. [2024-11-28 04:42:39,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-28 04:42:39,982 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:39,982 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-28 04:42:39,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:40,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:40,188 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:42:40,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:40,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1183142070, now seen corresponding path program 1 times [2024-11-28 04:42:40,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:40,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808511097] [2024-11-28 04:42:40,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:40,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:40,625 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 3 proven. 58 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-28 04:42:40,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:40,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808511097] [2024-11-28 04:42:40,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808511097] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:40,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959163313] [2024-11-28 04:42:40,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:40,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:40,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:40,628 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:40,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:42:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:40,703 INFO L256 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:42:40,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:40,872 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 3 proven. 142 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:42:40,872 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:41,228 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 3 proven. 58 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-28 04:42:41,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959163313] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:42:41,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:42:41,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 18] total 28 [2024-11-28 04:42:41,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771068268] [2024-11-28 04:42:41,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:41,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 04:42:41,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:41,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 04:42:41,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:42:41,230 INFO L87 Difference]: Start difference. First operand 608 states and 700 transitions. Second operand has 28 states, 28 states have (on average 4.0) internal successors, (112), 28 states have internal predecessors, (112), 11 states have call successors, (31), 9 states have call predecessors, (31), 9 states have return successors, (31), 11 states have call predecessors, (31), 11 states have call successors, (31) [2024-11-28 04:42:42,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:42,248 INFO L93 Difference]: Finished difference Result 988 states and 1148 transitions. [2024-11-28 04:42:42,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-28 04:42:42,249 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.0) internal successors, (112), 28 states have internal predecessors, (112), 11 states have call successors, (31), 9 states have call predecessors, (31), 9 states have return successors, (31), 11 states have call predecessors, (31), 11 states have call successors, (31) Word has length 100 [2024-11-28 04:42:42,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:42,253 INFO L225 Difference]: With dead ends: 988 [2024-11-28 04:42:42,253 INFO L226 Difference]: Without dead ends: 699 [2024-11-28 04:42:42,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 182 SyntacticMatches, 9 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=525, Invalid=2025, Unknown=0, NotChecked=0, Total=2550 [2024-11-28 04:42:42,256 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 142 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:42,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 331 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:42:42,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-11-28 04:42:42,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 670. [2024-11-28 04:42:42,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 537 states have (on average 1.1638733705772812) internal successors, (625), 540 states have internal predecessors, (625), 68 states have call successors, (68), 62 states have call predecessors, (68), 62 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-28 04:42:42,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 761 transitions. [2024-11-28 04:42:42,309 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 761 transitions. Word has length 100 [2024-11-28 04:42:42,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:42,310 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 761 transitions. [2024-11-28 04:42:42,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.0) internal successors, (112), 28 states have internal predecessors, (112), 11 states have call successors, (31), 9 states have call predecessors, (31), 9 states have return successors, (31), 11 states have call predecessors, (31), 11 states have call successors, (31) [2024-11-28 04:42:42,310 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 761 transitions. [2024-11-28 04:42:42,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-28 04:42:42,312 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:42,313 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2024-11-28 04:42:42,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 04:42:42,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:42,514 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:42:42,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:42,514 INFO L85 PathProgramCache]: Analyzing trace with hash 603400210, now seen corresponding path program 1 times [2024-11-28 04:42:42,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:42,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924879819] [2024-11-28 04:42:42,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:42,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:42,983 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 04:42:42,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:42,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924879819] [2024-11-28 04:42:42,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924879819] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:42,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798097187] [2024-11-28 04:42:42,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:42,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:42,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:42,985 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:42,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:42:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:43,058 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:42:43,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:43,512 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 3 proven. 178 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:42:43,512 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:44,146 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 3 proven. 66 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 04:42:44,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798097187] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:42:44,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:42:44,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18, 18] total 54 [2024-11-28 04:42:44,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794123804] [2024-11-28 04:42:44,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:44,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-11-28 04:42:44,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:44,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-11-28 04:42:44,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=582, Invalid=2388, Unknown=0, NotChecked=0, Total=2970 [2024-11-28 04:42:44,150 INFO L87 Difference]: Start difference. First operand 670 states and 761 transitions. Second operand has 55 states, 54 states have (on average 3.0185185185185186) internal successors, (163), 55 states have internal predecessors, (163), 26 states have call successors, (32), 9 states have call predecessors, (32), 9 states have return successors, (32), 26 states have call predecessors, (32), 26 states have call successors, (32) [2024-11-28 04:42:47,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:47,442 INFO L93 Difference]: Finished difference Result 952 states and 1096 transitions. [2024-11-28 04:42:47,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-11-28 04:42:47,443 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 3.0185185185185186) internal successors, (163), 55 states have internal predecessors, (163), 26 states have call successors, (32), 9 states have call predecessors, (32), 9 states have return successors, (32), 26 states have call predecessors, (32), 26 states have call successors, (32) Word has length 106 [2024-11-28 04:42:47,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:47,448 INFO L225 Difference]: With dead ends: 952 [2024-11-28 04:42:47,449 INFO L226 Difference]: Without dead ends: 950 [2024-11-28 04:42:47,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3619 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=2860, Invalid=11902, Unknown=0, NotChecked=0, Total=14762 [2024-11-28 04:42:47,453 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 412 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:47,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 521 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:42:47,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2024-11-28 04:42:47,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 699. [2024-11-28 04:42:47,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 560 states have (on average 1.175) internal successors, (658), 564 states have internal predecessors, (658), 71 states have call successors, (71), 65 states have call predecessors, (71), 65 states have return successors, (71), 69 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-28 04:42:47,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 800 transitions. [2024-11-28 04:42:47,524 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 800 transitions. Word has length 106 [2024-11-28 04:42:47,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:47,525 INFO L471 AbstractCegarLoop]: Abstraction has 699 states and 800 transitions. [2024-11-28 04:42:47,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 3.0185185185185186) internal successors, (163), 55 states have internal predecessors, (163), 26 states have call successors, (32), 9 states have call predecessors, (32), 9 states have return successors, (32), 26 states have call predecessors, (32), 26 states have call successors, (32) [2024-11-28 04:42:47,525 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 800 transitions. [2024-11-28 04:42:47,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 04:42:47,528 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:47,528 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 7, 7, 7, 7, 7, 7, 6, 4, 4, 4, 3, 3, 3, 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] [2024-11-28 04:42:47,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:47,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:47,729 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:42:47,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:47,729 INFO L85 PathProgramCache]: Analyzing trace with hash -2087286591, now seen corresponding path program 2 times [2024-11-28 04:42:47,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:47,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913285240] [2024-11-28 04:42:47,730 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:42:47,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:47,768 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:42:47,768 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:42:48,550 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-28 04:42:48,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:48,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913285240] [2024-11-28 04:42:48,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913285240] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:48,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442386553] [2024-11-28 04:42:48,551 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:42:48,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:48,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:48,557 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:48,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:42:48,656 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:42:48,656 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:42:48,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:42:48,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:49,506 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 3 proven. 320 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:42:49,506 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:50,536 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 3 proven. 140 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-28 04:42:50,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442386553] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:42:50,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:42:50,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 24, 24] total 70 [2024-11-28 04:42:50,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136707060] [2024-11-28 04:42:50,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:50,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2024-11-28 04:42:50,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:50,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2024-11-28 04:42:50,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=947, Invalid=4023, Unknown=0, NotChecked=0, Total=4970 [2024-11-28 04:42:50,541 INFO L87 Difference]: Start difference. First operand 699 states and 800 transitions. Second operand has 71 states, 70 states have (on average 3.0142857142857142) internal successors, (211), 71 states have internal predecessors, (211), 31 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 31 states have call predecessors, (38), 31 states have call successors, (38) [2024-11-28 04:42:55,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:55,047 INFO L93 Difference]: Finished difference Result 1586 states and 1870 transitions. [2024-11-28 04:42:55,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2024-11-28 04:42:55,047 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 70 states have (on average 3.0142857142857142) internal successors, (211), 71 states have internal predecessors, (211), 31 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 31 states have call predecessors, (38), 31 states have call successors, (38) Word has length 130 [2024-11-28 04:42:55,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:55,054 INFO L225 Difference]: With dead ends: 1586 [2024-11-28 04:42:55,054 INFO L226 Difference]: Without dead ends: 1228 [2024-11-28 04:42:55,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6790 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=5094, Invalid=21638, Unknown=0, NotChecked=0, Total=26732 [2024-11-28 04:42:55,061 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 837 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:55,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 401 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 04:42:55,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2024-11-28 04:42:55,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 680. [2024-11-28 04:42:55,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 545 states have (on average 1.1706422018348623) internal successors, (638), 549 states have internal predecessors, (638), 69 states have call successors, (69), 63 states have call predecessors, (69), 63 states have return successors, (69), 67 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-28 04:42:55,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 776 transitions. [2024-11-28 04:42:55,159 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 776 transitions. Word has length 130 [2024-11-28 04:42:55,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:55,159 INFO L471 AbstractCegarLoop]: Abstraction has 680 states and 776 transitions. [2024-11-28 04:42:55,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 70 states have (on average 3.0142857142857142) internal successors, (211), 71 states have internal predecessors, (211), 31 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 31 states have call predecessors, (38), 31 states have call successors, (38) [2024-11-28 04:42:55,160 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 776 transitions. [2024-11-28 04:42:55,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-28 04:42:55,166 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:55,166 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 8, 8, 8, 8, 7, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:55,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:55,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:55,367 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:42:55,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:55,367 INFO L85 PathProgramCache]: Analyzing trace with hash 2056235556, now seen corresponding path program 1 times [2024-11-28 04:42:55,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:55,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413167582] [2024-11-28 04:42:55,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:55,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:55,886 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 78 proven. 42 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2024-11-28 04:42:55,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:55,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413167582] [2024-11-28 04:42:55,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413167582] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:55,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206701721] [2024-11-28 04:42:55,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:55,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:55,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:55,889 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:55,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:42:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:56,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:42:56,006 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:56,243 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 246 proven. 126 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-28 04:42:56,244 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:56,668 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 78 proven. 42 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2024-11-28 04:42:56,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206701721] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:42:56,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:42:56,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 18] total 30 [2024-11-28 04:42:56,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025669341] [2024-11-28 04:42:56,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:56,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-28 04:42:56,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:56,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-28 04:42:56,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=707, Unknown=0, NotChecked=0, Total=870 [2024-11-28 04:42:56,670 INFO L87 Difference]: Start difference. First operand 680 states and 776 transitions. Second operand has 30 states, 30 states have (on average 4.266666666666667) internal successors, (128), 30 states have internal predecessors, (128), 12 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 12 states have call predecessors, (35), 12 states have call successors, (35) [2024-11-28 04:42:57,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:57,923 INFO L93 Difference]: Finished difference Result 1173 states and 1352 transitions. [2024-11-28 04:42:57,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-28 04:42:57,923 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.266666666666667) internal successors, (128), 30 states have internal predecessors, (128), 12 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 12 states have call predecessors, (35), 12 states have call successors, (35) Word has length 160 [2024-11-28 04:42:57,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:57,927 INFO L225 Difference]: With dead ends: 1173 [2024-11-28 04:42:57,927 INFO L226 Difference]: Without dead ends: 828 [2024-11-28 04:42:57,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 302 SyntacticMatches, 7 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 946 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=595, Invalid=2711, Unknown=0, NotChecked=0, Total=3306 [2024-11-28 04:42:57,929 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 155 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:57,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 420 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:42:57,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2024-11-28 04:42:57,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 798. [2024-11-28 04:42:57,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 641 states have (on average 1.1591263650546022) internal successors, (743), 645 states have internal predecessors, (743), 80 states have call successors, (80), 74 states have call predecessors, (80), 74 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-28 04:42:57,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 903 transitions. [2024-11-28 04:42:57,998 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 903 transitions. Word has length 160 [2024-11-28 04:42:57,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:57,999 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 903 transitions. [2024-11-28 04:42:57,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.266666666666667) internal successors, (128), 30 states have internal predecessors, (128), 12 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 12 states have call predecessors, (35), 12 states have call successors, (35) [2024-11-28 04:42:57,999 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 903 transitions. [2024-11-28 04:42:58,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-28 04:42:58,002 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:58,002 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 8, 8, 8, 8, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:58,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 04:42:58,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:58,207 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:42:58,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:58,207 INFO L85 PathProgramCache]: Analyzing trace with hash -819137986, now seen corresponding path program 1 times [2024-11-28 04:42:58,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:58,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409216207] [2024-11-28 04:42:58,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:58,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:58,419 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 78 proven. 6 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2024-11-28 04:42:58,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:58,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409216207] [2024-11-28 04:42:58,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409216207] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:58,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825342892] [2024-11-28 04:42:58,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:58,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:58,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:58,423 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:58,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:42:58,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:58,527 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:42:58,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:59,098 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 537 proven. 4 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-28 04:42:59,098 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:59,545 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 197 proven. 4 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2024-11-28 04:42:59,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825342892] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:42:59,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:42:59,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 23, 24] total 29 [2024-11-28 04:42:59,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323118741] [2024-11-28 04:42:59,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:59,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-28 04:42:59,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:59,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-28 04:42:59,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=683, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:42:59,548 INFO L87 Difference]: Start difference. First operand 798 states and 903 transitions. Second operand has 29 states, 29 states have (on average 4.689655172413793) internal successors, (136), 29 states have internal predecessors, (136), 15 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (39), 15 states have call predecessors, (39), 15 states have call successors, (39) [2024-11-28 04:43:01,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:43:01,745 INFO L93 Difference]: Finished difference Result 1708 states and 1977 transitions. [2024-11-28 04:43:01,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-28 04:43:01,746 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.689655172413793) internal successors, (136), 29 states have internal predecessors, (136), 15 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (39), 15 states have call predecessors, (39), 15 states have call successors, (39) Word has length 166 [2024-11-28 04:43:01,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:43:01,750 INFO L225 Difference]: With dead ends: 1708 [2024-11-28 04:43:01,750 INFO L226 Difference]: Without dead ends: 1363 [2024-11-28 04:43:01,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 294 SyntacticMatches, 21 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2100 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1158, Invalid=5484, Unknown=0, NotChecked=0, Total=6642 [2024-11-28 04:43:01,752 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 152 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:43:01,752 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 777 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:43:01,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2024-11-28 04:43:01,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1049. [2024-11-28 04:43:01,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1049 states, 845 states have (on average 1.17396449704142) internal successors, (992), 851 states have internal predecessors, (992), 105 states have call successors, (105), 96 states have call predecessors, (105), 96 states have return successors, (105), 101 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-28 04:43:01,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 1202 transitions. [2024-11-28 04:43:01,853 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 1202 transitions. Word has length 166 [2024-11-28 04:43:01,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:43:01,854 INFO L471 AbstractCegarLoop]: Abstraction has 1049 states and 1202 transitions. [2024-11-28 04:43:01,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.689655172413793) internal successors, (136), 29 states have internal predecessors, (136), 15 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (39), 15 states have call predecessors, (39), 15 states have call successors, (39) [2024-11-28 04:43:01,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 1202 transitions. [2024-11-28 04:43:01,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-28 04:43:01,863 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:43:01,863 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 8, 8, 8, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:43:01,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 04:43:02,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:43:02,064 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:43:02,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:43:02,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1676947199, now seen corresponding path program 1 times [2024-11-28 04:43:02,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:43:02,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551239566] [2024-11-28 04:43:02,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:43:02,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:43:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:43:02,166 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2024-11-28 04:43:02,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:43:02,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551239566] [2024-11-28 04:43:02,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551239566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:43:02,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:43:02,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:43:02,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377873797] [2024-11-28 04:43:02,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:43:02,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:43:02,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:43:02,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:43:02,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:43:02,168 INFO L87 Difference]: Start difference. First operand 1049 states and 1202 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:43:02,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:43:02,459 INFO L93 Difference]: Finished difference Result 1744 states and 2049 transitions. [2024-11-28 04:43:02,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:43:02,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 170 [2024-11-28 04:43:02,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:43:02,467 INFO L225 Difference]: With dead ends: 1744 [2024-11-28 04:43:02,467 INFO L226 Difference]: Without dead ends: 1098 [2024-11-28 04:43:02,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:43:02,469 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 14 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:43:02,469 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 116 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:43:02,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2024-11-28 04:43:02,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1028. [2024-11-28 04:43:02,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 829 states have (on average 1.180940892641737) internal successors, (979), 833 states have internal predecessors, (979), 105 states have call successors, (105), 91 states have call predecessors, (105), 91 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-28 04:43:02,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1189 transitions. [2024-11-28 04:43:02,576 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1189 transitions. Word has length 170 [2024-11-28 04:43:02,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:43:02,576 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1189 transitions. [2024-11-28 04:43:02,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:43:02,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1189 transitions. [2024-11-28 04:43:02,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-28 04:43:02,580 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:43:02,580 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 11, 11, 11, 10, 10, 10, 10, 4, 4, 4, 3, 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] [2024-11-28 04:43:02,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 04:43:02,580 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:43:02,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:43:02,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1918080117, now seen corresponding path program 3 times [2024-11-28 04:43:02,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:43:02,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533437154] [2024-11-28 04:43:02,581 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:43:02,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:43:02,606 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:43:02,607 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:43:02,810 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2024-11-28 04:43:02,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:43:02,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533437154] [2024-11-28 04:43:02,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533437154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:43:02,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:43:02,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:43:02,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596230172] [2024-11-28 04:43:02,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:43:02,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:43:02,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:43:02,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:43:02,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:43:02,812 INFO L87 Difference]: Start difference. First operand 1028 states and 1189 transitions. Second operand has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 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) [2024-11-28 04:43:03,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:43:03,036 INFO L93 Difference]: Finished difference Result 1049 states and 1212 transitions. [2024-11-28 04:43:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:43:03,037 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 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 170 [2024-11-28 04:43:03,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:43:03,042 INFO L225 Difference]: With dead ends: 1049 [2024-11-28 04:43:03,042 INFO L226 Difference]: Without dead ends: 1045 [2024-11-28 04:43:03,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:43:03,044 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 39 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:43:03,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 161 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:43:03,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2024-11-28 04:43:03,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 782. [2024-11-28 04:43:03,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 631 states have (on average 1.1759112519809827) internal successors, (742), 635 states have internal predecessors, (742), 79 states have call successors, (79), 69 states have call predecessors, (79), 69 states have return successors, (79), 77 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:43:03,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 900 transitions. [2024-11-28 04:43:03,125 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 900 transitions. Word has length 170 [2024-11-28 04:43:03,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:43:03,126 INFO L471 AbstractCegarLoop]: Abstraction has 782 states and 900 transitions. [2024-11-28 04:43:03,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 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) [2024-11-28 04:43:03,126 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 900 transitions. [2024-11-28 04:43:03,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-28 04:43:03,130 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:43:03,130 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 16, 16, 15, 15, 15, 15, 14, 4, 4, 4, 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] [2024-11-28 04:43:03,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 04:43:03,130 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:43:03,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:43:03,131 INFO L85 PathProgramCache]: Analyzing trace with hash -664609081, now seen corresponding path program 1 times [2024-11-28 04:43:03,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:43:03,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061460478] [2024-11-28 04:43:03,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:43:03,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:43:03,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:43:03,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 162 proven. 6 refuted. 0 times theorem prover too weak. 1227 trivial. 0 not checked. [2024-11-28 04:43:03,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:43:03,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061460478] [2024-11-28 04:43:03,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061460478] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:43:03,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114131258] [2024-11-28 04:43:03,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:43:03,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:43:03,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:43:03,418 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:43:03,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:43:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:43:03,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:43:03,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:43:04,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 1013 proven. 6 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-11-28 04:43:04,115 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:43:04,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 473 proven. 6 refuted. 0 times theorem prover too weak. 916 trivial. 0 not checked. [2024-11-28 04:43:04,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114131258] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:43:04,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:43:04,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 23, 24] total 29 [2024-11-28 04:43:04,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071595336] [2024-11-28 04:43:04,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:43:04,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-28 04:43:04,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:43:04,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-28 04:43:04,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=677, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:43:04,661 INFO L87 Difference]: Start difference. First operand 782 states and 900 transitions. Second operand has 29 states, 29 states have (on average 4.689655172413793) internal successors, (136), 29 states have internal predecessors, (136), 15 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (39), 15 states have call predecessors, (39), 15 states have call successors, (39) [2024-11-28 04:43:06,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:43:06,824 INFO L93 Difference]: Finished difference Result 966 states and 1107 transitions. [2024-11-28 04:43:06,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-28 04:43:06,825 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.689655172413793) internal successors, (136), 29 states have internal predecessors, (136), 15 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (39), 15 states have call predecessors, (39), 15 states have call successors, (39) Word has length 216 [2024-11-28 04:43:06,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:43:06,828 INFO L225 Difference]: With dead ends: 966 [2024-11-28 04:43:06,828 INFO L226 Difference]: Without dead ends: 295 [2024-11-28 04:43:06,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 389 SyntacticMatches, 21 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1951 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1130, Invalid=4876, Unknown=0, NotChecked=0, Total=6006 [2024-11-28 04:43:06,831 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 168 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:43:06,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 848 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 04:43:06,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-11-28 04:43:06,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 291. [2024-11-28 04:43:06,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 232 states have (on average 1.0905172413793103) internal successors, (253), 233 states have internal predecessors, (253), 30 states have call successors, (30), 27 states have call predecessors, (30), 27 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 04:43:06,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 313 transitions. [2024-11-28 04:43:06,855 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 313 transitions. Word has length 216 [2024-11-28 04:43:06,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:43:06,856 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 313 transitions. [2024-11-28 04:43:06,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.689655172413793) internal successors, (136), 29 states have internal predecessors, (136), 15 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (39), 15 states have call predecessors, (39), 15 states have call successors, (39) [2024-11-28 04:43:06,856 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 313 transitions. [2024-11-28 04:43:06,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2024-11-28 04:43:06,859 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:43:06,859 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:43:06,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 04:43:07,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-28 04:43:07,063 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:43:07,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:43:07,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1154930905, now seen corresponding path program 2 times [2024-11-28 04:43:07,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:43:07,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969232781] [2024-11-28 04:43:07,064 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:43:07,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:43:07,159 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:43:07,159 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:43:07,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2292 backedges. 254 proven. 7 refuted. 0 times theorem prover too weak. 2031 trivial. 0 not checked. [2024-11-28 04:43:07,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:43:07,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969232781] [2024-11-28 04:43:07,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969232781] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:43:07,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751529237] [2024-11-28 04:43:07,523 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:43:07,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:43:07,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:43:07,525 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:43:07,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:43:07,696 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:43:07,696 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:43:07,703 INFO L256 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:43:07,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:43:08,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2292 backedges. 1599 proven. 9 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 04:43:08,339 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:43:08,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2292 backedges. 939 proven. 9 refuted. 0 times theorem prover too weak. 1344 trivial. 0 not checked. [2024-11-28 04:43:08,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751529237] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:43:08,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:43:08,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 23, 24] total 32 [2024-11-28 04:43:08,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656486097] [2024-11-28 04:43:08,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:43:08,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-28 04:43:08,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:43:08,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-28 04:43:08,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=822, Unknown=0, NotChecked=0, Total=992 [2024-11-28 04:43:08,923 INFO L87 Difference]: Start difference. First operand 291 states and 313 transitions. Second operand has 32 states, 32 states have (on average 4.25) internal successors, (136), 32 states have internal predecessors, (136), 15 states have call successors, (38), 13 states have call predecessors, (38), 13 states have return successors, (38), 15 states have call predecessors, (38), 15 states have call successors, (38) [2024-11-28 04:43:10,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:43:10,482 INFO L93 Difference]: Finished difference Result 490 states and 534 transitions. [2024-11-28 04:43:10,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-28 04:43:10,482 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.25) internal successors, (136), 32 states have internal predecessors, (136), 15 states have call successors, (38), 13 states have call predecessors, (38), 13 states have return successors, (38), 15 states have call predecessors, (38), 15 states have call successors, (38) Word has length 250 [2024-11-28 04:43:10,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:43:10,485 INFO L225 Difference]: With dead ends: 490 [2024-11-28 04:43:10,485 INFO L226 Difference]: Without dead ends: 304 [2024-11-28 04:43:10,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 456 SyntacticMatches, 21 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=963, Invalid=3593, Unknown=0, NotChecked=0, Total=4556 [2024-11-28 04:43:10,487 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 94 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:43:10,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1039 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:43:10,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-28 04:43:10,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 300. [2024-11-28 04:43:10,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 240 states have (on average 1.0791666666666666) internal successors, (259), 240 states have internal predecessors, (259), 31 states have call successors, (31), 28 states have call predecessors, (31), 28 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-28 04:43:10,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 321 transitions. [2024-11-28 04:43:10,526 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 321 transitions. Word has length 250 [2024-11-28 04:43:10,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:43:10,527 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 321 transitions. [2024-11-28 04:43:10,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.25) internal successors, (136), 32 states have internal predecessors, (136), 15 states have call successors, (38), 13 states have call predecessors, (38), 13 states have return successors, (38), 15 states have call predecessors, (38), 15 states have call successors, (38) [2024-11-28 04:43:10,528 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 321 transitions. [2024-11-28 04:43:10,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-11-28 04:43:10,531 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:43:10,531 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 23, 23, 23, 23, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:43:10,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-28 04:43:10,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:43:10,732 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:43:10,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:43:10,732 INFO L85 PathProgramCache]: Analyzing trace with hash 938265885, now seen corresponding path program 1 times [2024-11-28 04:43:10,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:43:10,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059164086] [2024-11-28 04:43:10,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:43:10,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:43:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:43:11,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2946 backedges. 172 proven. 1 refuted. 0 times theorem prover too weak. 2773 trivial. 0 not checked. [2024-11-28 04:43:11,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:43:11,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059164086] [2024-11-28 04:43:11,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059164086] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:43:11,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372655775] [2024-11-28 04:43:11,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:43:11,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:43:11,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:43:11,153 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:43:11,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:43:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:43:11,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:43:11,347 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:43:11,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2946 backedges. 1477 proven. 0 refuted. 0 times theorem prover too weak. 1469 trivial. 0 not checked. [2024-11-28 04:43:11,431 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:43:11,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372655775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:43:11,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:43:11,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 14 [2024-11-28 04:43:11,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484985602] [2024-11-28 04:43:11,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:43:11,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:43:11,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:43:11,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:43:11,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:43:11,433 INFO L87 Difference]: Start difference. First operand 300 states and 321 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:43:11,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:43:11,513 INFO L93 Difference]: Finished difference Result 308 states and 330 transitions. [2024-11-28 04:43:11,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:43:11,513 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 292 [2024-11-28 04:43:11,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:43:11,515 INFO L225 Difference]: With dead ends: 308 [2024-11-28 04:43:11,515 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:43:11,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:43:11,516 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 5 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:43:11,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 157 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:43:11,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:43:11,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:43:11,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-28 04:43:11,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:43:11,519 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 292 [2024-11-28 04:43:11,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:43:11,520 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:43:11,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:43:11,520 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:43:11,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:43:11,524 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-28 04:43:11,524 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-28 04:43:11,524 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-28 04:43:11,525 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-28 04:43:11,525 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-28 04:43:11,525 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-28 04:43:11,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 04:43:11,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:43:11,728 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:43:11,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 04:43:17,612 WARN L286 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 455 DAG size of output: 100 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-28 04:45:51,349 WARN L286 SmtUtils]: Spent 2.56m on a formula simplification. DAG size of input: 238 DAG size of output: 65 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-28 04:45:53,893 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:45:53,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:45:53 BoogieIcfgContainer [2024-11-28 04:45:53,916 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:45:53,917 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:45:53,917 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:45:53,917 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:45:53,922 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:15" (3/4) ... [2024-11-28 04:45:53,924 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:45:53,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 04:45:53,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-28 04:45:53,939 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-28 04:45:53,939 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-28 04:45:53,939 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 04:45:53,939 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:45:53,940 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:45:54,039 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:45:54,039 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:45:54,039 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:45:54,043 INFO L158 Benchmark]: Toolchain (without parser) took 219752.13ms. Allocated memory was 142.6MB in the beginning and 704.6MB in the end (delta: 562.0MB). Free memory was 106.6MB in the beginning and 469.0MB in the end (delta: -362.3MB). Peak memory consumption was 198.3MB. Max. memory is 16.1GB. [2024-11-28 04:45:54,043 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:45:54,044 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.42ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 95.4MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:45:54,044 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.09ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 94.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:45:54,044 INFO L158 Benchmark]: Boogie Preprocessor took 50.91ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 92.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:45:54,045 INFO L158 Benchmark]: RCFGBuilder took 423.31ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 79.6MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:45:54,045 INFO L158 Benchmark]: TraceAbstraction took 218818.98ms. Allocated memory was 142.6MB in the beginning and 704.6MB in the end (delta: 562.0MB). Free memory was 79.0MB in the beginning and 477.0MB in the end (delta: -398.1MB). Peak memory consumption was 387.2MB. Max. memory is 16.1GB. [2024-11-28 04:45:54,045 INFO L158 Benchmark]: Witness Printer took 122.73ms. Allocated memory is still 704.6MB. Free memory was 477.0MB in the beginning and 469.0MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:45:54,047 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.42ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 95.4MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.09ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 94.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.91ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 92.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 423.31ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 79.6MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 218818.98ms. Allocated memory was 142.6MB in the beginning and 704.6MB in the end (delta: 562.0MB). Free memory was 79.0MB in the beginning and 477.0MB in the end (delta: -398.1MB). Peak memory consumption was 387.2MB. Max. memory is 16.1GB. * Witness Printer took 122.73ms. Allocated memory is still 704.6MB. Free memory was 477.0MB in the beginning and 469.0MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 47 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 56.6s, OverallIterations: 25, TraceHistogramMax: 25, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 30.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3645 SdHoareTripleChecker+Valid, 17.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3639 mSDsluCounter, 8523 SdHoareTripleChecker+Invalid, 16.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7415 mSDsCounter, 455 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7732 IncrementalHoareTripleChecker+Invalid, 8187 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 455 mSolverCounterUnsat, 1108 mSDtfsCounter, 7732 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4418 GetRequests, 3231 SyntacticMatches, 82 SemanticMatches, 1105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23790 ImplicationChecksByTransitivity, 20.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1049occurred in iteration=20, InterpolantAutomatonStates: 870, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 25 MinimizatonAttempts, 1932 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 19.0s InterpolantComputationTime, 4560 NumberOfCodeBlocks, 4435 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 6111 ConstructedInterpolants, 0 QuantifiedInterpolants, 11307 SizeOfPredicates, 195 NumberOfNonLiveVariables, 4540 ConjunctsInSsa, 236 ConjunctsInUnsatCore, 56 InterpolantComputations, 11 PerfectInterpolantSequences, 23829/25905 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((4 <= counter) && (counter <= 11)) || (counter == 0)) || ((counter <= 2147483644) && (12 <= counter))) || (((counter <= 2147483644) && (x <= y)) && (3 <= counter))) - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: ((((((counter == 3) || (counter == 5)) || (counter == 4)) || ((y != x) && (counter == 1))) || ((counter <= 10) && (6 <= counter))) || (counter == 2)) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: ((((11 <= counter) && (counter <= 2147483643)) || ((counter <= 10) && (3 <= counter))) || (((2 <= counter) && (counter <= 4)) && (x <= y))) RESULT: Ultimate proved your program to be correct! [2024-11-28 04:45:54,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe062dc-cce2-4ea9-8398-89c388b35ccd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE