./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound10.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_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/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_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/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_be92ba3b-22a0-4cd1-9948-9ef444d2a237/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 6c4c876bf3d38b01f54a088b76131bc8275dc44ae3ac622f7c3187fe3c7bf156 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:19:18,101 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:19:18,203 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 03:19:18,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:19:18,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:19:18,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:19:18,252 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:19:18,252 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:19:18,253 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:19:18,253 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:19:18,254 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:19:18,254 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:19:18,255 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:19:18,255 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:19:18,255 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:19:18,255 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:19:18,257 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:19:18,257 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:19:18,257 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:19:18,257 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:19:18,257 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:19:18,257 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:19:18,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:19:18,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:19:18,258 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:19:18,258 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:19:18,258 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:19:18,258 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:19:18,258 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:19:18,259 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:19:18,259 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:19:18,259 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:19:18,259 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:19:18,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:19:18,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:19:18,261 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:19:18,261 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:19:18,261 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:19:18,261 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:19:18,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:19:18,261 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:19:18,262 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:19:18,262 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:19:18,262 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:19:18,262 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:19:18,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:19:18,262 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:19:18,262 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:19:18,262 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:19:18,263 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:19:18,263 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_be92ba3b-22a0-4cd1-9948-9ef444d2a237/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 -> 6c4c876bf3d38b01f54a088b76131bc8275dc44ae3ac622f7c3187fe3c7bf156 [2024-11-28 03:19:18,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:19:18,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:19:18,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:19:18,667 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:19:18,668 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:19:18,669 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound10.c [2024-11-28 03:19:21,845 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/data/30b53fa2c/132af3c78d6c42af8a1cbd392bfecd09/FLAGf66643e45 [2024-11-28 03:19:22,107 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:19:22,108 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound10.c [2024-11-28 03:19:22,116 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/data/30b53fa2c/132af3c78d6c42af8a1cbd392bfecd09/FLAGf66643e45 [2024-11-28 03:19:22,427 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/data/30b53fa2c/132af3c78d6c42af8a1cbd392bfecd09 [2024-11-28 03:19:22,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:19:22,431 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:19:22,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:19:22,434 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:19:22,441 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:19:22,442 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:22" (1/1) ... [2024-11-28 03:19:22,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ed01837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:22, skipping insertion in model container [2024-11-28 03:19:22,446 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:22" (1/1) ... [2024-11-28 03:19:22,464 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:19:22,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:19:22,679 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:19:22,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:19:22,713 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:19:22,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:22 WrapperNode [2024-11-28 03:19:22,714 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:19:22,716 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:19:22,716 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:19:22,716 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:19:22,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:22" (1/1) ... [2024-11-28 03:19:22,732 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:22" (1/1) ... [2024-11-28 03:19:22,779 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2024-11-28 03:19:22,784 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:19:22,784 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:19:22,785 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:19:22,785 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:19:22,797 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:22" (1/1) ... [2024-11-28 03:19:22,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:22" (1/1) ... [2024-11-28 03:19:22,800 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:22" (1/1) ... [2024-11-28 03:19:22,821 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:19:22,823 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:22" (1/1) ... [2024-11-28 03:19:22,823 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:22" (1/1) ... [2024-11-28 03:19:22,829 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:22" (1/1) ... [2024-11-28 03:19:22,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:22" (1/1) ... [2024-11-28 03:19:22,836 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:22" (1/1) ... [2024-11-28 03:19:22,841 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:22" (1/1) ... [2024-11-28 03:19:22,842 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:22" (1/1) ... [2024-11-28 03:19:22,848 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:19:22,849 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:19:22,849 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:19:22,849 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:19:22,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:22" (1/1) ... [2024-11-28 03:19:22,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:19:22,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:22,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:19:22,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:19:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:19:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:19:22,939 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:19:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:19:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:19:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:19:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 03:19:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 03:19:23,001 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:19:23,003 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:19:23,571 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2024-11-28 03:19:23,573 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:19:23,596 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:19:23,599 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:19:23,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:23 BoogieIcfgContainer [2024-11-28 03:19:23,600 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:19:23,603 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:19:23,604 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:19:23,610 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:19:23,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:19:22" (1/3) ... [2024-11-28 03:19:23,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d327ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:23, skipping insertion in model container [2024-11-28 03:19:23,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:22" (2/3) ... [2024-11-28 03:19:23,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d327ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:23, skipping insertion in model container [2024-11-28 03:19:23,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:23" (3/3) ... [2024-11-28 03:19:23,614 INFO L128 eAbstractionObserver]: Analyzing ICFG fermat2-ll_valuebound10.c [2024-11-28 03:19:23,633 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:19:23,635 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG fermat2-ll_valuebound10.c that has 3 procedures, 137 locations, 1 initial locations, 1 loop locations, and 56 error locations. [2024-11-28 03:19:23,693 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:19:23,708 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;@56855b0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:19:23,708 INFO L334 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-11-28 03:19:23,713 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 72 states have (on average 1.8611111111111112) internal successors, (134), 128 states have internal predecessors, (134), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 03:19:23,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 03:19:23,721 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:23,721 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:23,722 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:19:23,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:23,728 INFO L85 PathProgramCache]: Analyzing trace with hash -969785577, now seen corresponding path program 1 times [2024-11-28 03:19:23,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:23,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55592546] [2024-11-28 03:19:23,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:23,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:23,912 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:19:23,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:23,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55592546] [2024-11-28 03:19:23,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55592546] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:23,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254487192] [2024-11-28 03:19:23,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:23,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:23,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:23,917 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:23,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:19:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:23,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:19:23,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:23,989 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:19:23,989 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:19:23,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254487192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:23,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:19:23,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:19:23,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564210530] [2024-11-28 03:19:23,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:23,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:19:24,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:24,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:19:24,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:19:24,028 INFO L87 Difference]: Start difference. First operand has 137 states, 72 states have (on average 1.8611111111111112) internal successors, (134), 128 states have internal predecessors, (134), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:19:24,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:24,072 INFO L93 Difference]: Finished difference Result 264 states and 293 transitions. [2024-11-28 03:19:24,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:19:24,074 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-11-28 03:19:24,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:24,085 INFO L225 Difference]: With dead ends: 264 [2024-11-28 03:19:24,086 INFO L226 Difference]: Without dead ends: 124 [2024-11-28 03:19:24,089 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 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 03:19:24,094 INFO L435 NwaCegarLoop]: 135 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, 135 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 03:19:24,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:19:24,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-28 03:19:24,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-11-28 03:19:24,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 67 states have (on average 1.7611940298507462) internal successors, (118), 116 states have internal predecessors, (118), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:19:24,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 128 transitions. [2024-11-28 03:19:24,148 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 128 transitions. Word has length 14 [2024-11-28 03:19:24,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:24,148 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 128 transitions. [2024-11-28 03:19:24,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:19:24,149 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 128 transitions. [2024-11-28 03:19:24,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 03:19:24,150 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:24,150 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:24,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:19:24,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:24,355 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:19:24,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:24,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1362753005, now seen corresponding path program 1 times [2024-11-28 03:19:24,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:24,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673744211] [2024-11-28 03:19:24,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:24,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:24,488 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:19:24,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:24,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673744211] [2024-11-28 03:19:24,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673744211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:24,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:24,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:19:24,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434914600] [2024-11-28 03:19:24,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:24,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:19:24,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:24,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:19:24,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:19:24,493 INFO L87 Difference]: Start difference. First operand 124 states and 128 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:19:24,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:24,585 INFO L93 Difference]: Finished difference Result 124 states and 128 transitions. [2024-11-28 03:19:24,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:19:24,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-11-28 03:19:24,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:24,587 INFO L225 Difference]: With dead ends: 124 [2024-11-28 03:19:24,587 INFO L226 Difference]: Without dead ends: 120 [2024-11-28 03:19:24,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:19:24,588 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 13 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:24,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 199 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:19:24,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-28 03:19:24,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-28 03:19:24,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 67 states have (on average 1.7014925373134329) internal successors, (114), 112 states have internal predecessors, (114), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:19:24,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 124 transitions. [2024-11-28 03:19:24,600 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 124 transitions. Word has length 14 [2024-11-28 03:19:24,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:24,601 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 124 transitions. [2024-11-28 03:19:24,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:19:24,601 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 124 transitions. [2024-11-28 03:19:24,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 03:19:24,602 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:24,602 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:24,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:19:24,602 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:19:24,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:24,603 INFO L85 PathProgramCache]: Analyzing trace with hash 704329844, now seen corresponding path program 1 times [2024-11-28 03:19:24,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:24,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545507064] [2024-11-28 03:19:24,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:24,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:24,662 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:19:24,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:24,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545507064] [2024-11-28 03:19:24,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545507064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:24,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:24,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:19:24,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940987740] [2024-11-28 03:19:24,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:24,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:19:24,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:24,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:19:24,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:19:24,664 INFO L87 Difference]: Start difference. First operand 120 states and 124 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:19:24,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:24,722 INFO L93 Difference]: Finished difference Result 120 states and 124 transitions. [2024-11-28 03:19:24,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:19:24,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-11-28 03:19:24,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:24,724 INFO L225 Difference]: With dead ends: 120 [2024-11-28 03:19:24,724 INFO L226 Difference]: Without dead ends: 116 [2024-11-28 03:19:24,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:19:24,725 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 12 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:24,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 199 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:19:24,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-28 03:19:24,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-28 03:19:24,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 67 states have (on average 1.6417910447761195) internal successors, (110), 108 states have internal predecessors, (110), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:19:24,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 120 transitions. [2024-11-28 03:19:24,744 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 120 transitions. Word has length 15 [2024-11-28 03:19:24,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:24,744 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 120 transitions. [2024-11-28 03:19:24,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:19:24,745 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 120 transitions. [2024-11-28 03:19:24,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 03:19:24,745 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:24,745 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:24,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:19:24,746 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:19:24,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:24,747 INFO L85 PathProgramCache]: Analyzing trace with hash -803919688, now seen corresponding path program 1 times [2024-11-28 03:19:24,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:24,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334298019] [2024-11-28 03:19:24,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:24,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:19:24,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [125355858] [2024-11-28 03:19:24,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:24,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:24,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:24,794 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:24,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:19:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:24,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:19:24,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:24,990 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:19:24,990 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:19:24,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:24,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334298019] [2024-11-28 03:19:24,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:19:24,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125355858] [2024-11-28 03:19:24,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125355858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:24,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:24,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:19:24,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601773922] [2024-11-28 03:19:24,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:24,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:19:24,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:24,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:19:24,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:19:24,995 INFO L87 Difference]: Start difference. First operand 116 states and 120 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:19:25,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:25,151 INFO L93 Difference]: Finished difference Result 116 states and 120 transitions. [2024-11-28 03:19:25,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:19:25,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-11-28 03:19:25,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:25,156 INFO L225 Difference]: With dead ends: 116 [2024-11-28 03:19:25,156 INFO L226 Difference]: Without dead ends: 114 [2024-11-28 03:19:25,156 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:19:25,157 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 8 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:25,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 375 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:19:25,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-28 03:19:25,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-28 03:19:25,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 67 states have (on average 1.6119402985074627) internal successors, (108), 106 states have internal predecessors, (108), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:19:25,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 118 transitions. [2024-11-28 03:19:25,175 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 118 transitions. Word has length 19 [2024-11-28 03:19:25,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:25,175 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 118 transitions. [2024-11-28 03:19:25,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:19:25,175 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 118 transitions. [2024-11-28 03:19:25,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-28 03:19:25,176 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:25,176 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 03:19:25,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:19:25,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:25,377 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:19:25,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:25,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1786722301, now seen corresponding path program 1 times [2024-11-28 03:19:25,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:25,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113274999] [2024-11-28 03:19:25,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:25,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:19:25,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [48964819] [2024-11-28 03:19:25,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:25,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:25,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:25,432 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:25,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:19:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:25,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:19:25,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:25,689 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:19:25,689 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:19:25,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:25,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113274999] [2024-11-28 03:19:25,785 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:19:25,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48964819] [2024-11-28 03:19:25,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48964819] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:25,785 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:19:25,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-28 03:19:25,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821719116] [2024-11-28 03:19:25,786 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:19:25,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:19:25,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:25,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:19:25,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:19:25,788 INFO L87 Difference]: Start difference. First operand 114 states and 118 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:19:25,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:25,889 INFO L93 Difference]: Finished difference Result 114 states and 118 transitions. [2024-11-28 03:19:25,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:19:25,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2024-11-28 03:19:25,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:25,891 INFO L225 Difference]: With dead ends: 114 [2024-11-28 03:19:25,892 INFO L226 Difference]: Without dead ends: 111 [2024-11-28 03:19:25,892 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:19:25,893 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 79 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:25,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 291 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:19:25,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-28 03:19:25,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-28 03:19:25,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 67 states have (on average 1.5671641791044777) internal successors, (105), 103 states have internal predecessors, (105), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:19:25,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 115 transitions. [2024-11-28 03:19:25,907 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 115 transitions. Word has length 36 [2024-11-28 03:19:25,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:25,907 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 115 transitions. [2024-11-28 03:19:25,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:19:25,908 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 115 transitions. [2024-11-28 03:19:25,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-28 03:19:25,908 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:25,909 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, 1] [2024-11-28 03:19:25,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:19:26,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:26,109 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:19:26,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:26,110 INFO L85 PathProgramCache]: Analyzing trace with hash -446183452, now seen corresponding path program 1 times [2024-11-28 03:19:26,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:26,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432418760] [2024-11-28 03:19:26,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:26,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:26,398 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:19:26,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:26,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432418760] [2024-11-28 03:19:26,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432418760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:26,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706221083] [2024-11-28 03:19:26,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:26,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:26,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:26,402 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:26,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:19:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:26,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:19:26,457 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:26,610 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:19:26,611 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:19:26,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706221083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:26,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:19:26,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-28 03:19:26,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304876581] [2024-11-28 03:19:26,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:26,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:19:26,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:26,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:19:26,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:19:26,612 INFO L87 Difference]: Start difference. First operand 111 states and 115 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:19:26,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:26,816 INFO L93 Difference]: Finished difference Result 111 states and 115 transitions. [2024-11-28 03:19:26,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:19:26,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 37 [2024-11-28 03:19:26,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:26,819 INFO L225 Difference]: With dead ends: 111 [2024-11-28 03:19:26,819 INFO L226 Difference]: Without dead ends: 110 [2024-11-28 03:19:26,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:19:26,821 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 78 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:26,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 380 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:19:26,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-28 03:19:26,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-11-28 03:19:26,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 67 states have (on average 1.5522388059701493) internal successors, (104), 102 states have internal predecessors, (104), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:19:26,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 114 transitions. [2024-11-28 03:19:26,840 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 114 transitions. Word has length 37 [2024-11-28 03:19:26,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:26,841 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 114 transitions. [2024-11-28 03:19:26,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:19:26,841 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 114 transitions. [2024-11-28 03:19:26,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 03:19:26,842 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:26,842 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, 1, 1] [2024-11-28 03:19:26,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:19:27,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:27,048 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:19:27,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:27,048 INFO L85 PathProgramCache]: Analyzing trace with hash -946785049, now seen corresponding path program 1 times [2024-11-28 03:19:27,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:27,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044006760] [2024-11-28 03:19:27,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:27,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:27,154 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 03:19:27,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:27,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044006760] [2024-11-28 03:19:27,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044006760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:27,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:27,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:19:27,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513363016] [2024-11-28 03:19:27,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:27,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:19:27,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:27,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:19:27,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:19:27,157 INFO L87 Difference]: Start difference. First operand 110 states and 114 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 03:19:27,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:27,224 INFO L93 Difference]: Finished difference Result 112 states and 116 transitions. [2024-11-28 03:19:27,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:19:27,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 38 [2024-11-28 03:19:27,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:27,226 INFO L225 Difference]: With dead ends: 112 [2024-11-28 03:19:27,226 INFO L226 Difference]: Without dead ends: 111 [2024-11-28 03:19:27,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:19:27,227 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 35 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:27,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 157 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:19:27,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-28 03:19:27,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-28 03:19:27,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 68 states have (on average 1.5441176470588236) internal successors, (105), 103 states have internal predecessors, (105), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:19:27,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 115 transitions. [2024-11-28 03:19:27,250 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 115 transitions. Word has length 38 [2024-11-28 03:19:27,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:27,250 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 115 transitions. [2024-11-28 03:19:27,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 03:19:27,251 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 115 transitions. [2024-11-28 03:19:27,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-28 03:19:27,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:27,252 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, 1, 1, 1] [2024-11-28 03:19:27,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:19:27,252 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:19:27,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:27,255 INFO L85 PathProgramCache]: Analyzing trace with hash 714434630, now seen corresponding path program 1 times [2024-11-28 03:19:27,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:27,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976401715] [2024-11-28 03:19:27,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:27,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:27,361 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 03:19:27,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:27,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976401715] [2024-11-28 03:19:27,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976401715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:27,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:27,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:19:27,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921962305] [2024-11-28 03:19:27,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:27,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:19:27,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:27,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:19:27,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:19:27,369 INFO L87 Difference]: Start difference. First operand 111 states and 115 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 03:19:27,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:27,502 INFO L93 Difference]: Finished difference Result 113 states and 117 transitions. [2024-11-28 03:19:27,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:19:27,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 39 [2024-11-28 03:19:27,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:27,504 INFO L225 Difference]: With dead ends: 113 [2024-11-28 03:19:27,505 INFO L226 Difference]: Without dead ends: 112 [2024-11-28 03:19:27,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:19:27,507 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 45 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:27,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 209 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:19:27,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-28 03:19:27,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-28 03:19:27,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 69 states have (on average 1.536231884057971) internal successors, (106), 104 states have internal predecessors, (106), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:19:27,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 116 transitions. [2024-11-28 03:19:27,520 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 116 transitions. Word has length 39 [2024-11-28 03:19:27,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:27,520 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 116 transitions. [2024-11-28 03:19:27,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 03:19:27,521 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 116 transitions. [2024-11-28 03:19:27,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 03:19:27,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:27,522 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, 1, 1, 1, 1] [2024-11-28 03:19:27,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:19:27,522 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:19:27,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:27,523 INFO L85 PathProgramCache]: Analyzing trace with hash 672637129, now seen corresponding path program 1 times [2024-11-28 03:19:27,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:27,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467034460] [2024-11-28 03:19:27,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:27,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:19:27,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1534908169] [2024-11-28 03:19:27,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:27,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:27,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:27,544 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:27,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:19:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:27,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:19:27,609 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:27,634 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 03:19:27,634 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:19:27,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:27,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467034460] [2024-11-28 03:19:27,634 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:19:27,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534908169] [2024-11-28 03:19:27,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534908169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:27,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:27,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:19:27,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012699899] [2024-11-28 03:19:27,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:27,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:19:27,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:27,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:19:27,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:19:27,636 INFO L87 Difference]: Start difference. First operand 112 states and 116 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 03:19:27,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:27,728 INFO L93 Difference]: Finished difference Result 148 states and 160 transitions. [2024-11-28 03:19:27,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:19:27,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 40 [2024-11-28 03:19:27,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:27,730 INFO L225 Difference]: With dead ends: 148 [2024-11-28 03:19:27,730 INFO L226 Difference]: Without dead ends: 147 [2024-11-28 03:19:27,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:19:27,731 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 33 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:27,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 186 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:19:27,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-28 03:19:27,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 113. [2024-11-28 03:19:27,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 70 states have (on average 1.5285714285714285) internal successors, (107), 105 states have internal predecessors, (107), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:19:27,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 117 transitions. [2024-11-28 03:19:27,746 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 117 transitions. Word has length 40 [2024-11-28 03:19:27,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:27,746 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 117 transitions. [2024-11-28 03:19:27,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 03:19:27,746 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 117 transitions. [2024-11-28 03:19:27,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 03:19:27,747 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:27,747 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, 1, 1, 1, 1, 1] [2024-11-28 03:19:27,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:19:27,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:27,954 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:19:27,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:27,954 INFO L85 PathProgramCache]: Analyzing trace with hash -623085400, now seen corresponding path program 1 times [2024-11-28 03:19:27,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:27,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933712246] [2024-11-28 03:19:27,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:27,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:28,282 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:19:28,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:28,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933712246] [2024-11-28 03:19:28,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933712246] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:28,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480671833] [2024-11-28 03:19:28,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:28,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:28,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:28,287 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:28,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:19:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:28,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:19:28,361 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:28,715 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:19:28,715 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:19:29,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480671833] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:29,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:19:29,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-28 03:19:29,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864353819] [2024-11-28 03:19:29,118 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:19:29,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:19:29,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:29,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:19:29,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:19:29,123 INFO L87 Difference]: Start difference. First operand 113 states and 117 transitions. Second operand has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-28 03:19:30,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:30,168 INFO L93 Difference]: Finished difference Result 148 states and 159 transitions. [2024-11-28 03:19:30,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:19:30,168 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 41 [2024-11-28 03:19:30,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:30,170 INFO L225 Difference]: With dead ends: 148 [2024-11-28 03:19:30,170 INFO L226 Difference]: Without dead ends: 147 [2024-11-28 03:19:30,170 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:19:30,171 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 173 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:30,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 572 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 306 Invalid, 1 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:19:30,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-28 03:19:30,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 114. [2024-11-28 03:19:30,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 106 states have internal predecessors, (108), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:19:30,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 118 transitions. [2024-11-28 03:19:30,182 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 118 transitions. Word has length 41 [2024-11-28 03:19:30,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:30,182 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 118 transitions. [2024-11-28 03:19:30,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-28 03:19:30,183 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 118 transitions. [2024-11-28 03:19:30,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 03:19:30,183 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:30,183 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:30,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 03:19:30,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 03:19:30,384 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:19:30,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:30,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1784612598, now seen corresponding path program 1 times [2024-11-28 03:19:30,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:30,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711978314] [2024-11-28 03:19:30,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:30,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:19:30,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1705459626] [2024-11-28 03:19:30,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:30,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:30,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:30,409 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:30,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:19:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:30,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:19:30,485 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:30,711 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:19:30,712 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:19:30,892 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:19:30,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:30,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711978314] [2024-11-28 03:19:30,892 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:19:30,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705459626] [2024-11-28 03:19:30,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705459626] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:19:30,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:19:30,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-28 03:19:30,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117583737] [2024-11-28 03:19:30,893 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:19:30,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:19:30,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:30,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:19:30,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:19:30,897 INFO L87 Difference]: Start difference. First operand 114 states and 118 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:19:31,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:31,839 INFO L93 Difference]: Finished difference Result 188 states and 212 transitions. [2024-11-28 03:19:31,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:19:31,839 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 43 [2024-11-28 03:19:31,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:31,840 INFO L225 Difference]: With dead ends: 188 [2024-11-28 03:19:31,840 INFO L226 Difference]: Without dead ends: 173 [2024-11-28 03:19:31,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:19:31,841 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 114 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:31,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 324 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:19:31,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-28 03:19:31,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 155. [2024-11-28 03:19:31,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 120 states have (on average 1.4583333333333333) internal successors, (175), 146 states have internal predecessors, (175), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 03:19:31,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 187 transitions. [2024-11-28 03:19:31,852 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 187 transitions. Word has length 43 [2024-11-28 03:19:31,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:31,852 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 187 transitions. [2024-11-28 03:19:31,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:19:31,853 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 187 transitions. [2024-11-28 03:19:31,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 03:19:31,853 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:31,853 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:31,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 03:19:32,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:32,058 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:19:32,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:32,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1320752788, now seen corresponding path program 1 times [2024-11-28 03:19:32,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:32,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195983278] [2024-11-28 03:19:32,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:32,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:19:32,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2072482066] [2024-11-28 03:19:32,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:32,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:32,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:32,092 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:32,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:19:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:32,138 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:19:32,140 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:32,172 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 03:19:32,173 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:19:32,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:32,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195983278] [2024-11-28 03:19:32,173 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:19:32,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072482066] [2024-11-28 03:19:32,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072482066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:32,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:32,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:19:32,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660400405] [2024-11-28 03:19:32,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:32,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:19:32,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:32,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:19:32,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:19:32,175 INFO L87 Difference]: Start difference. First operand 155 states and 187 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 03:19:32,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:32,326 INFO L93 Difference]: Finished difference Result 267 states and 331 transitions. [2024-11-28 03:19:32,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:19:32,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 45 [2024-11-28 03:19:32,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:32,329 INFO L225 Difference]: With dead ends: 267 [2024-11-28 03:19:32,329 INFO L226 Difference]: Without dead ends: 238 [2024-11-28 03:19:32,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:19:32,330 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 44 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:32,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 132 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:19:32,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-28 03:19:32,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 230. [2024-11-28 03:19:32,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 193 states have (on average 1.4041450777202074) internal successors, (271), 219 states have internal predecessors, (271), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:19:32,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 287 transitions. [2024-11-28 03:19:32,376 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 287 transitions. Word has length 45 [2024-11-28 03:19:32,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:32,376 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 287 transitions. [2024-11-28 03:19:32,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 03:19:32,377 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 287 transitions. [2024-11-28 03:19:32,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 03:19:32,378 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:32,378 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, 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 03:19:32,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 03:19:32,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 03:19:32,579 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:19:32,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:32,580 INFO L85 PathProgramCache]: Analyzing trace with hash 679120362, now seen corresponding path program 1 times [2024-11-28 03:19:32,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:32,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834200324] [2024-11-28 03:19:32,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:32,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:32,676 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 03:19:32,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:32,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834200324] [2024-11-28 03:19:32,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834200324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:32,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:32,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:19:32,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893960499] [2024-11-28 03:19:32,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:32,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:19:32,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:32,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:19:32,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:19:32,678 INFO L87 Difference]: Start difference. First operand 230 states and 287 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 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 03:19:32,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:32,876 INFO L93 Difference]: Finished difference Result 230 states and 287 transitions. [2024-11-28 03:19:32,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:19:32,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 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 63 [2024-11-28 03:19:32,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:32,879 INFO L225 Difference]: With dead ends: 230 [2024-11-28 03:19:32,879 INFO L226 Difference]: Without dead ends: 229 [2024-11-28 03:19:32,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:19:32,880 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 100 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:32,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 175 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:19:32,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-28 03:19:32,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2024-11-28 03:19:32,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 193 states have (on average 1.383419689119171) internal successors, (267), 218 states have internal predecessors, (267), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:19:32,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 283 transitions. [2024-11-28 03:19:32,902 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 283 transitions. Word has length 63 [2024-11-28 03:19:32,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:32,902 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 283 transitions. [2024-11-28 03:19:32,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 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 03:19:32,902 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 283 transitions. [2024-11-28 03:19:32,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 03:19:32,903 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:32,903 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, 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 03:19:32,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:19:32,904 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:19:32,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:32,904 INFO L85 PathProgramCache]: Analyzing trace with hash 679120042, now seen corresponding path program 1 times [2024-11-28 03:19:32,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:32,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95870696] [2024-11-28 03:19:32,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:32,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:32,988 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 03:19:32,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:32,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95870696] [2024-11-28 03:19:32,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95870696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:32,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:32,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:19:32,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510463526] [2024-11-28 03:19:32,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:32,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:19:32,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:32,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:19:32,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:19:32,990 INFO L87 Difference]: Start difference. First operand 229 states and 283 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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 03:19:33,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:33,171 INFO L93 Difference]: Finished difference Result 237 states and 284 transitions. [2024-11-28 03:19:33,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:19:33,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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 63 [2024-11-28 03:19:33,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:33,173 INFO L225 Difference]: With dead ends: 237 [2024-11-28 03:19:33,173 INFO L226 Difference]: Without dead ends: 236 [2024-11-28 03:19:33,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 03:19:33,175 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 31 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:33,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 162 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:19:33,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-28 03:19:33,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 229. [2024-11-28 03:19:33,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 193 states have (on average 1.3730569948186528) internal successors, (265), 218 states have internal predecessors, (265), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:19:33,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 281 transitions. [2024-11-28 03:19:33,195 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 281 transitions. Word has length 63 [2024-11-28 03:19:33,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:33,195 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 281 transitions. [2024-11-28 03:19:33,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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 03:19:33,195 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 281 transitions. [2024-11-28 03:19:33,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 03:19:33,196 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:33,197 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, 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 03:19:33,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:19:33,197 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:19:33,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:33,198 INFO L85 PathProgramCache]: Analyzing trace with hash -422105126, now seen corresponding path program 1 times [2024-11-28 03:19:33,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:33,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828858723] [2024-11-28 03:19:33,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:33,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:33,269 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 03:19:33,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:33,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828858723] [2024-11-28 03:19:33,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828858723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:33,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:33,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:19:33,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015459589] [2024-11-28 03:19:33,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:33,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:19:33,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:33,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:19:33,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:19:33,271 INFO L87 Difference]: Start difference. First operand 229 states and 281 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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 03:19:33,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:33,478 INFO L93 Difference]: Finished difference Result 239 states and 291 transitions. [2024-11-28 03:19:33,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:19:33,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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 64 [2024-11-28 03:19:33,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:33,481 INFO L225 Difference]: With dead ends: 239 [2024-11-28 03:19:33,481 INFO L226 Difference]: Without dead ends: 238 [2024-11-28 03:19:33,481 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 03:19:33,482 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 49 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:33,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 167 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:19:33,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-28 03:19:33,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 228. [2024-11-28 03:19:33,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 193 states have (on average 1.3523316062176165) internal successors, (261), 217 states have internal predecessors, (261), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:19:33,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 277 transitions. [2024-11-28 03:19:33,499 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 277 transitions. Word has length 64 [2024-11-28 03:19:33,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:33,499 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 277 transitions. [2024-11-28 03:19:33,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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 03:19:33,499 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 277 transitions. [2024-11-28 03:19:33,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 03:19:33,500 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:33,500 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, 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 03:19:33,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:19:33,500 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:19:33,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:33,501 INFO L85 PathProgramCache]: Analyzing trace with hash -422115056, now seen corresponding path program 1 times [2024-11-28 03:19:33,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:33,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935935518] [2024-11-28 03:19:33,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:33,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:33,611 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 03:19:33,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:33,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935935518] [2024-11-28 03:19:33,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935935518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:33,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:33,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:19:33,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129833440] [2024-11-28 03:19:33,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:33,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:19:33,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:33,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:19:33,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:19:33,613 INFO L87 Difference]: Start difference. First operand 228 states and 277 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 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 03:19:33,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:33,912 INFO L93 Difference]: Finished difference Result 231 states and 278 transitions. [2024-11-28 03:19:33,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:19:33,913 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 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 64 [2024-11-28 03:19:33,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:33,915 INFO L225 Difference]: With dead ends: 231 [2024-11-28 03:19:33,915 INFO L226 Difference]: Without dead ends: 230 [2024-11-28 03:19:33,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:19:33,916 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 117 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:33,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 166 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:19:33,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-28 03:19:33,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 228. [2024-11-28 03:19:33,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 193 states have (on average 1.3419689119170986) internal successors, (259), 217 states have internal predecessors, (259), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:19:33,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 275 transitions. [2024-11-28 03:19:33,935 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 275 transitions. Word has length 64 [2024-11-28 03:19:33,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:33,935 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 275 transitions. [2024-11-28 03:19:33,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 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 03:19:33,936 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 275 transitions. [2024-11-28 03:19:33,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 03:19:33,937 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:33,937 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, 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 03:19:33,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:19:33,938 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:19:33,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:33,939 INFO L85 PathProgramCache]: Analyzing trace with hash 730567087, now seen corresponding path program 1 times [2024-11-28 03:19:33,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:33,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318997438] [2024-11-28 03:19:33,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:33,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:34,050 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:19:34,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:34,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318997438] [2024-11-28 03:19:34,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318997438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:34,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:34,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:19:34,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096633040] [2024-11-28 03:19:34,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:34,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:19:34,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:34,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:19:34,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:19:34,053 INFO L87 Difference]: Start difference. First operand 228 states and 275 transitions. Second operand has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 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 03:19:34,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:34,214 INFO L93 Difference]: Finished difference Result 232 states and 281 transitions. [2024-11-28 03:19:34,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:19:34,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 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 67 [2024-11-28 03:19:34,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:34,216 INFO L225 Difference]: With dead ends: 232 [2024-11-28 03:19:34,216 INFO L226 Difference]: Without dead ends: 231 [2024-11-28 03:19:34,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:19:34,217 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 59 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:34,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 168 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:19:34,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-28 03:19:34,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 229. [2024-11-28 03:19:34,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 194 states have (on average 1.324742268041237) internal successors, (257), 218 states have internal predecessors, (257), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:19:34,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 273 transitions. [2024-11-28 03:19:34,254 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 273 transitions. Word has length 67 [2024-11-28 03:19:34,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:34,255 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 273 transitions. [2024-11-28 03:19:34,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 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 03:19:34,255 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 273 transitions. [2024-11-28 03:19:34,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 03:19:34,256 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:34,256 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, 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 03:19:34,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:19:34,257 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:19:34,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:34,257 INFO L85 PathProgramCache]: Analyzing trace with hash 434732537, now seen corresponding path program 1 times [2024-11-28 03:19:34,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:34,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368809531] [2024-11-28 03:19:34,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:34,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:34,407 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:19:34,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:34,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368809531] [2024-11-28 03:19:34,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368809531] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:34,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013018195] [2024-11-28 03:19:34,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:34,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:34,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:34,411 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:34,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:19:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:34,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:19:34,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:34,678 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:19:34,678 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:19:34,851 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:19:34,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013018195] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:19:34,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:19:34,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2024-11-28 03:19:34,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669073225] [2024-11-28 03:19:34,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:19:34,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:19:34,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:34,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:19:34,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:19:34,854 INFO L87 Difference]: Start difference. First operand 229 states and 273 transitions. Second operand has 14 states, 13 states have (on average 9.153846153846153) internal successors, (119), 14 states have internal predecessors, (119), 5 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 03:19:35,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:35,594 INFO L93 Difference]: Finished difference Result 293 states and 359 transitions. [2024-11-28 03:19:35,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:19:35,595 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.153846153846153) internal successors, (119), 14 states have internal predecessors, (119), 5 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 67 [2024-11-28 03:19:35,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:35,597 INFO L225 Difference]: With dead ends: 293 [2024-11-28 03:19:35,597 INFO L226 Difference]: Without dead ends: 291 [2024-11-28 03:19:35,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=335, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:19:35,598 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 371 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:35,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 254 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:19:35,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-28 03:19:35,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 233. [2024-11-28 03:19:35,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 199 states have (on average 1.3165829145728642) internal successors, (262), 222 states have internal predecessors, (262), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:19:35,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 278 transitions. [2024-11-28 03:19:35,628 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 278 transitions. Word has length 67 [2024-11-28 03:19:35,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:35,629 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 278 transitions. [2024-11-28 03:19:35,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.153846153846153) internal successors, (119), 14 states have internal predecessors, (119), 5 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 03:19:35,629 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 278 transitions. [2024-11-28 03:19:35,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 03:19:35,630 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:35,630 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 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 03:19:35,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 03:19:35,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 03:19:35,831 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:19:35,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:35,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1172743294, now seen corresponding path program 1 times [2024-11-28 03:19:35,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:35,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63242611] [2024-11-28 03:19:35,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:35,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:35,959 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:19:35,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:35,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63242611] [2024-11-28 03:19:35,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63242611] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:35,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408527771] [2024-11-28 03:19:35,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:35,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:35,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:35,962 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:35,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 03:19:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:36,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:19:36,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:36,285 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:19:36,285 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:19:36,474 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:19:36,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408527771] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:19:36,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:19:36,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-28 03:19:36,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401923709] [2024-11-28 03:19:36,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:19:36,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:19:36,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:36,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:19:36,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:19:36,476 INFO L87 Difference]: Start difference. First operand 233 states and 278 transitions. Second operand has 15 states, 14 states have (on average 9.428571428571429) internal successors, (132), 15 states have internal predecessors, (132), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-28 03:19:37,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:37,040 INFO L93 Difference]: Finished difference Result 266 states and 317 transitions. [2024-11-28 03:19:37,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:19:37,041 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.428571428571429) internal successors, (132), 15 states have internal predecessors, (132), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 68 [2024-11-28 03:19:37,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:37,043 INFO L225 Difference]: With dead ends: 266 [2024-11-28 03:19:37,043 INFO L226 Difference]: Without dead ends: 264 [2024-11-28 03:19:37,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:19:37,044 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 241 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:37,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 227 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:19:37,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-28 03:19:37,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 237. [2024-11-28 03:19:37,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 203 states have (on average 1.2857142857142858) internal successors, (261), 226 states have internal predecessors, (261), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:19:37,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 277 transitions. [2024-11-28 03:19:37,065 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 277 transitions. Word has length 68 [2024-11-28 03:19:37,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:37,065 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 277 transitions. [2024-11-28 03:19:37,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.428571428571429) internal successors, (132), 15 states have internal predecessors, (132), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-28 03:19:37,066 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 277 transitions. [2024-11-28 03:19:37,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 03:19:37,066 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:37,066 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 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 03:19:37,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 03:19:37,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:37,268 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:19:37,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:37,269 INFO L85 PathProgramCache]: Analyzing trace with hash 591806836, now seen corresponding path program 1 times [2024-11-28 03:19:37,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:37,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221268751] [2024-11-28 03:19:37,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:37,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:37,378 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:19:37,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:37,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221268751] [2024-11-28 03:19:37,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221268751] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:37,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141755601] [2024-11-28 03:19:37,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:37,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:37,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:37,382 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:37,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 03:19:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:37,435 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:19:37,439 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:57,730 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~R~0#1_48| Int)) (let ((.cse0 (* |v_ULTIMATE.start_main_~R~0#1_48| |v_ULTIMATE.start_main_~R~0#1_48|))) (and (<= .cse0 9223372036854775807) (<= (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1| 1) .cse0)))) is different from true [2024-11-28 03:19:57,757 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 2 not checked. [2024-11-28 03:19:57,757 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:19:57,948 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:19:57,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141755601] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:19:57,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:19:57,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-28 03:19:57,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174192140] [2024-11-28 03:19:57,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:19:57,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:19:57,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:57,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:19:57,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=106, Unknown=6, NotChecked=22, Total=182 [2024-11-28 03:19:57,950 INFO L87 Difference]: Start difference. First operand 237 states and 277 transitions. Second operand has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 03:20:09,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:20:13,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:20:17,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:20:21,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:20:23,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:20:25,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:20:29,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:20:31,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:20:35,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:20:39,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:20:43,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:20:47,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:20:51,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:20:55,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:20:59,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:21:03,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:21:07,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:21:09,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:21:11,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:21:15,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:21:17,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:21:20,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:21:22,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:21:24,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:21:29,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:21:33,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:21:37,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:21:39,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:21:43,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:21:47,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:21:51,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:21:55,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:21:59,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:22:01,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:22:03,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:22:07,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:22:09,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:22:13,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:22:17,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:22:21,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:22:25,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:22:29,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:22:32,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:22:34,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:22:36,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:22:38,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:22:40,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:22:42,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:22:46,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:22:46,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:46,726 INFO L93 Difference]: Finished difference Result 276 states and 323 transitions. [2024-11-28 03:22:46,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:22:46,727 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 68 [2024-11-28 03:22:46,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:46,729 INFO L225 Difference]: With dead ends: 276 [2024-11-28 03:22:46,729 INFO L226 Difference]: Without dead ends: 271 [2024-11-28 03:22:46,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 31.9s TimeCoverageRelationStatistics Valid=132, Invalid=282, Unknown=10, NotChecked=38, Total=462 [2024-11-28 03:22:46,730 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 250 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 34 mSolverCounterUnsat, 49 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 156.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 49 IncrementalHoareTripleChecker+Unknown, 218 IncrementalHoareTripleChecker+Unchecked, 156.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:46,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 260 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 416 Invalid, 49 Unknown, 218 Unchecked, 156.9s Time] [2024-11-28 03:22:46,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-28 03:22:46,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 258. [2024-11-28 03:22:46,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 227 states have (on average 1.2643171806167401) internal successors, (287), 246 states have internal predecessors, (287), 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 03:22:46,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 305 transitions. [2024-11-28 03:22:46,754 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 305 transitions. Word has length 68 [2024-11-28 03:22:46,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:46,755 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 305 transitions. [2024-11-28 03:22:46,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 03:22:46,755 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 305 transitions. [2024-11-28 03:22:46,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 03:22:46,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:46,756 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:46,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 03:22:46,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:46,957 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:22:46,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:46,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1995303825, now seen corresponding path program 1 times [2024-11-28 03:22:46,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:46,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960044081] [2024-11-28 03:22:46,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:46,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:47,205 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:22:47,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:47,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960044081] [2024-11-28 03:22:47,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960044081] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:47,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702837984] [2024-11-28 03:22:47,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:47,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:47,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:47,211 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:47,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 03:22:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:47,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:22:47,272 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:47,481 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:22:47,481 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:47,709 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:22:47,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702837984] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:22:47,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:22:47,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2024-11-28 03:22:47,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673415610] [2024-11-28 03:22:47,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:22:47,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:22:47,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:47,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:22:47,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:22:47,711 INFO L87 Difference]: Start difference. First operand 258 states and 305 transitions. Second operand has 15 states, 14 states have (on average 8.642857142857142) internal successors, (121), 15 states have internal predecessors, (121), 6 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-28 03:22:48,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:48,400 INFO L93 Difference]: Finished difference Result 287 states and 338 transitions. [2024-11-28 03:22:48,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:22:48,403 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.642857142857142) internal successors, (121), 15 states have internal predecessors, (121), 6 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 69 [2024-11-28 03:22:48,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:48,405 INFO L225 Difference]: With dead ends: 287 [2024-11-28 03:22:48,405 INFO L226 Difference]: Without dead ends: 286 [2024-11-28 03:22:48,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:22:48,407 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 133 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:48,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 264 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:22:48,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-28 03:22:48,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 258. [2024-11-28 03:22:48,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 227 states have (on average 1.2466960352422907) internal successors, (283), 246 states have internal predecessors, (283), 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 03:22:48,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 301 transitions. [2024-11-28 03:22:48,433 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 301 transitions. Word has length 69 [2024-11-28 03:22:48,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:48,434 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 301 transitions. [2024-11-28 03:22:48,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.642857142857142) internal successors, (121), 15 states have internal predecessors, (121), 6 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-28 03:22:48,434 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 301 transitions. [2024-11-28 03:22:48,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:22:48,435 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:48,435 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:48,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 03:22:48,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:48,636 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:22:48,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:48,636 INFO L85 PathProgramCache]: Analyzing trace with hash 261072922, now seen corresponding path program 1 times [2024-11-28 03:22:48,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:48,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232204129] [2024-11-28 03:22:48,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:48,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:22:48,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1832776591] [2024-11-28 03:22:48,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:48,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:48,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:48,685 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:48,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 03:22:48,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:48,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:22:48,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:48,823 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:22:48,823 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:48,982 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:22:48,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:48,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232204129] [2024-11-28 03:22:48,983 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:22:48,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832776591] [2024-11-28 03:22:48,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832776591] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:22:48,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:22:48,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-28 03:22:48,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445428013] [2024-11-28 03:22:48,984 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:22:48,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:22:48,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:48,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:22:48,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:22:48,985 INFO L87 Difference]: Start difference. First operand 258 states and 301 transitions. Second operand has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 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 03:22:49,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:49,377 INFO L93 Difference]: Finished difference Result 531 states and 671 transitions. [2024-11-28 03:22:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:22:49,377 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 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 74 [2024-11-28 03:22:49,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:49,380 INFO L225 Difference]: With dead ends: 531 [2024-11-28 03:22:49,380 INFO L226 Difference]: Without dead ends: 505 [2024-11-28 03:22:49,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:22:49,383 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 208 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:49,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 225 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:22:49,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-11-28 03:22:49,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 450. [2024-11-28 03:22:49,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 421 states have (on average 1.190023752969121) internal successors, (501), 432 states have internal predecessors, (501), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:22:49,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 531 transitions. [2024-11-28 03:22:49,429 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 531 transitions. Word has length 74 [2024-11-28 03:22:49,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:49,430 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 531 transitions. [2024-11-28 03:22:49,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 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 03:22:49,430 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 531 transitions. [2024-11-28 03:22:49,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 03:22:49,431 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:49,431 INFO L218 NwaCegarLoop]: trace histogram [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, 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 03:22:49,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 03:22:49,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:49,632 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:22:49,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:49,632 INFO L85 PathProgramCache]: Analyzing trace with hash 778699466, now seen corresponding path program 1 times [2024-11-28 03:22:49,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:49,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534405302] [2024-11-28 03:22:49,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:49,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:49,901 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:22:49,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:49,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534405302] [2024-11-28 03:22:49,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534405302] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:49,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45578174] [2024-11-28 03:22:49,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:49,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:49,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:49,905 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:49,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 03:22:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:49,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:22:49,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:50,156 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:22:50,156 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:23:06,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45578174] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:06,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:23:06,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 9 [2024-11-28 03:23:06,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294980871] [2024-11-28 03:23:06,683 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:23:06,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:23:06,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:06,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:23:06,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=114, Unknown=3, NotChecked=0, Total=156 [2024-11-28 03:23:06,685 INFO L87 Difference]: Start difference. First operand 450 states and 531 transitions. Second operand has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 10 states have internal predecessors, (74), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 03:23:08,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:23:08,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:08,765 INFO L93 Difference]: Finished difference Result 454 states and 531 transitions. [2024-11-28 03:23:08,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:23:08,766 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 10 states have internal predecessors, (74), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 80 [2024-11-28 03:23:08,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:08,768 INFO L225 Difference]: With dead ends: 454 [2024-11-28 03:23:08,768 INFO L226 Difference]: Without dead ends: 434 [2024-11-28 03:23:08,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=57, Invalid=150, Unknown=3, NotChecked=0, Total=210 [2024-11-28 03:23:08,770 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 152 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:23:08,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 220 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 03:23:08,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-11-28 03:23:08,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 415. [2024-11-28 03:23:08,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 390 states have (on average 1.1538461538461537) internal successors, (450), 397 states have internal predecessors, (450), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:23:08,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 480 transitions. [2024-11-28 03:23:08,814 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 480 transitions. Word has length 80 [2024-11-28 03:23:08,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:08,814 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 480 transitions. [2024-11-28 03:23:08,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 10 states have internal predecessors, (74), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 03:23:08,815 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 480 transitions. [2024-11-28 03:23:08,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 03:23:08,817 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:08,817 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:23:08,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 03:23:09,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-28 03:23:09,018 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:23:09,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:09,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1021428776, now seen corresponding path program 1 times [2024-11-28 03:23:09,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:09,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230686748] [2024-11-28 03:23:09,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:09,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:09,096 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 03:23:09,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:09,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230686748] [2024-11-28 03:23:09,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230686748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:23:09,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:23:09,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:23:09,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049822147] [2024-11-28 03:23:09,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:23:09,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:23:09,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:09,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:23:09,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:23:09,099 INFO L87 Difference]: Start difference. First operand 415 states and 480 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:23:09,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:09,248 INFO L93 Difference]: Finished difference Result 423 states and 488 transitions. [2024-11-28 03:23:09,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:23:09,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 92 [2024-11-28 03:23:09,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:09,251 INFO L225 Difference]: With dead ends: 423 [2024-11-28 03:23:09,252 INFO L226 Difference]: Without dead ends: 422 [2024-11-28 03:23:09,253 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 03:23:09,253 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 45 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:23:09,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 135 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:23:09,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-28 03:23:09,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 414. [2024-11-28 03:23:09,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 390 states have (on average 1.1307692307692307) internal successors, (441), 396 states have internal predecessors, (441), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:23:09,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 471 transitions. [2024-11-28 03:23:09,299 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 471 transitions. Word has length 92 [2024-11-28 03:23:09,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:09,300 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 471 transitions. [2024-11-28 03:23:09,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:23:09,300 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 471 transitions. [2024-11-28 03:23:09,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 03:23:09,301 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:09,301 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:23:09,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:23:09,301 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:23:09,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:09,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1599520862, now seen corresponding path program 1 times [2024-11-28 03:23:09,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:09,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002106992] [2024-11-28 03:23:09,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:09,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:09,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:09,496 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 03:23:09,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:09,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002106992] [2024-11-28 03:23:09,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002106992] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:09,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915242071] [2024-11-28 03:23:09,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:09,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:09,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:09,501 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:23:09,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 03:23:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:09,568 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:23:09,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:23:09,860 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 03:23:09,860 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:23:09,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915242071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:23:09,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:23:09,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-11-28 03:23:09,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093863548] [2024-11-28 03:23:09,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:23:09,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:23:09,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:09,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:23:09,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:23:09,864 INFO L87 Difference]: Start difference. First operand 414 states and 471 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 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 03:23:10,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:10,125 INFO L93 Difference]: Finished difference Result 462 states and 529 transitions. [2024-11-28 03:23:10,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:23:10,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 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 93 [2024-11-28 03:23:10,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:10,128 INFO L225 Difference]: With dead ends: 462 [2024-11-28 03:23:10,128 INFO L226 Difference]: Without dead ends: 461 [2024-11-28 03:23:10,128 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:23:10,129 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 32 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:23:10,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 142 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:23:10,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-28 03:23:10,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 413. [2024-11-28 03:23:10,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 390 states have (on average 1.1076923076923078) internal successors, (432), 395 states have internal predecessors, (432), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:23:10,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 462 transitions. [2024-11-28 03:23:10,203 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 462 transitions. Word has length 93 [2024-11-28 03:23:10,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:10,204 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 462 transitions. [2024-11-28 03:23:10,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 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 03:23:10,205 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 462 transitions. [2024-11-28 03:23:10,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 03:23:10,208 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:10,208 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:23:10,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 03:23:10,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-28 03:23:10,413 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:23:10,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:10,413 INFO L85 PathProgramCache]: Analyzing trace with hash -37420535, now seen corresponding path program 1 times [2024-11-28 03:23:10,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:10,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132506545] [2024-11-28 03:23:10,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:10,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:10,586 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 03:23:10,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:10,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132506545] [2024-11-28 03:23:10,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132506545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:10,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818059303] [2024-11-28 03:23:10,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:10,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:10,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:10,589 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:23:10,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 03:23:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:10,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:23:10,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:23:11,039 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 03:23:11,039 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:23:11,322 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 03:23:11,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818059303] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:23:11,322 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:23:11,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-11-28 03:23:11,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634264592] [2024-11-28 03:23:11,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:23:11,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:23:11,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:11,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:23:11,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:23:11,326 INFO L87 Difference]: Start difference. First operand 413 states and 462 transitions. Second operand has 16 states, 15 states have (on average 13.133333333333333) internal successors, (197), 16 states have internal predecessors, (197), 8 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-28 03:23:12,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:12,063 INFO L93 Difference]: Finished difference Result 441 states and 491 transitions. [2024-11-28 03:23:12,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 03:23:12,064 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 13.133333333333333) internal successors, (197), 16 states have internal predecessors, (197), 8 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 98 [2024-11-28 03:23:12,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:12,066 INFO L225 Difference]: With dead ends: 441 [2024-11-28 03:23:12,066 INFO L226 Difference]: Without dead ends: 440 [2024-11-28 03:23:12,067 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=238, Invalid=464, Unknown=0, NotChecked=0, Total=702 [2024-11-28 03:23:12,068 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 425 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:23:12,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 315 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:23:12,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-11-28 03:23:12,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 412. [2024-11-28 03:23:12,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 390 states have (on average 1.0846153846153845) internal successors, (423), 394 states have internal predecessors, (423), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:23:12,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 453 transitions. [2024-11-28 03:23:12,113 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 453 transitions. Word has length 98 [2024-11-28 03:23:12,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:12,114 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 453 transitions. [2024-11-28 03:23:12,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 13.133333333333333) internal successors, (197), 16 states have internal predecessors, (197), 8 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-28 03:23:12,114 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 453 transitions. [2024-11-28 03:23:12,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 03:23:12,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:12,115 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:23:12,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 03:23:12,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 03:23:12,320 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:23:12,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:12,321 INFO L85 PathProgramCache]: Analyzing trace with hash 348292106, now seen corresponding path program 1 times [2024-11-28 03:23:12,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:12,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265274776] [2024-11-28 03:23:12,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:12,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:23:12,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [949135131] [2024-11-28 03:23:12,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:12,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:12,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:12,359 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:23:12,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 03:23:12,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:12,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:23:12,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:23:13,332 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 43 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 03:23:13,332 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:23:13,768 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 43 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 03:23:13,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:13,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265274776] [2024-11-28 03:23:13,768 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:23:13,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949135131] [2024-11-28 03:23:13,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949135131] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:23:13,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:23:13,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-28 03:23:13,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552424366] [2024-11-28 03:23:13,769 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:23:13,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:23:13,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:13,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:23:13,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:23:13,772 INFO L87 Difference]: Start difference. First operand 412 states and 453 transitions. Second operand has 13 states, 12 states have (on average 12.5) internal successors, (150), 13 states have internal predecessors, (150), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-28 03:23:15,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:15,630 INFO L93 Difference]: Finished difference Result 1373 states and 1528 transitions. [2024-11-28 03:23:15,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:23:15,632 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 12.5) internal successors, (150), 13 states have internal predecessors, (150), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 101 [2024-11-28 03:23:15,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:15,640 INFO L225 Difference]: With dead ends: 1373 [2024-11-28 03:23:15,640 INFO L226 Difference]: Without dead ends: 1372 [2024-11-28 03:23:15,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:23:15,641 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 427 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:23:15,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 597 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 03:23:15,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2024-11-28 03:23:15,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1272. [2024-11-28 03:23:15,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1222 states have (on average 1.0924713584288053) internal successors, (1335), 1226 states have internal predecessors, (1335), 43 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-28 03:23:15,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1421 transitions. [2024-11-28 03:23:15,820 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1421 transitions. Word has length 101 [2024-11-28 03:23:15,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:15,820 INFO L471 AbstractCegarLoop]: Abstraction has 1272 states and 1421 transitions. [2024-11-28 03:23:15,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 12.5) internal successors, (150), 13 states have internal predecessors, (150), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-28 03:23:15,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1421 transitions. [2024-11-28 03:23:15,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 03:23:15,823 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:15,823 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:23:15,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 03:23:16,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 03:23:16,027 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:23:16,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:16,028 INFO L85 PathProgramCache]: Analyzing trace with hash 2133755191, now seen corresponding path program 1 times [2024-11-28 03:23:16,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:16,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252557475] [2024-11-28 03:23:16,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:16,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:16,172 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 13 proven. 46 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 03:23:16,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:16,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252557475] [2024-11-28 03:23:16,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252557475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:16,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754763511] [2024-11-28 03:23:16,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:16,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:16,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:16,180 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:23:16,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 03:23:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:16,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:23:16,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:23:16,423 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 03:23:16,423 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:23:16,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754763511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:23:16,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:23:16,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-28 03:23:16,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217033163] [2024-11-28 03:23:16,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:23:16,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:23:16,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:16,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:23:16,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:23:16,425 INFO L87 Difference]: Start difference. First operand 1272 states and 1421 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 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 03:23:16,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:16,740 INFO L93 Difference]: Finished difference Result 1274 states and 1421 transitions. [2024-11-28 03:23:16,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:23:16,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 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 112 [2024-11-28 03:23:16,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:16,745 INFO L225 Difference]: With dead ends: 1274 [2024-11-28 03:23:16,745 INFO L226 Difference]: Without dead ends: 1257 [2024-11-28 03:23:16,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:23:16,747 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 87 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:23:16,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 172 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:23:16,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2024-11-28 03:23:16,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1255. [2024-11-28 03:23:16,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1207 states have (on average 1.0571665285832643) internal successors, (1276), 1209 states have internal predecessors, (1276), 43 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-28 03:23:16,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1362 transitions. [2024-11-28 03:23:16,890 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1362 transitions. Word has length 112 [2024-11-28 03:23:16,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:16,891 INFO L471 AbstractCegarLoop]: Abstraction has 1255 states and 1362 transitions. [2024-11-28 03:23:16,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 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 03:23:16,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1362 transitions. [2024-11-28 03:23:16,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 03:23:16,899 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:16,899 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:23:16,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-28 03:23:17,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-28 03:23:17,100 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:23:17,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:17,100 INFO L85 PathProgramCache]: Analyzing trace with hash -978244788, now seen corresponding path program 1 times [2024-11-28 03:23:17,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:17,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744963807] [2024-11-28 03:23:17,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:17,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:17,264 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 54 proven. 21 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 03:23:17,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:17,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744963807] [2024-11-28 03:23:17,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744963807] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:17,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272022993] [2024-11-28 03:23:17,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:17,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:17,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:17,267 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:23:17,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 03:23:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:17,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:23:17,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:23:18,138 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 21 proven. 58 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 03:23:18,138 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:23:18,562 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 21 proven. 58 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 03:23:18,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272022993] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:23:18,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:23:18,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 21 [2024-11-28 03:23:18,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798896266] [2024-11-28 03:23:18,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:23:18,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 03:23:18,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:18,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 03:23:18,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:23:18,567 INFO L87 Difference]: Start difference. First operand 1255 states and 1362 transitions. Second operand has 21 states, 21 states have (on average 13.333333333333334) internal successors, (280), 21 states have internal predecessors, (280), 14 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 14 states have call predecessors, (21), 14 states have call successors, (21) [2024-11-28 03:23:20,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:20,209 INFO L93 Difference]: Finished difference Result 1712 states and 1861 transitions. [2024-11-28 03:23:20,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 03:23:20,210 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 13.333333333333334) internal successors, (280), 21 states have internal predecessors, (280), 14 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 14 states have call predecessors, (21), 14 states have call successors, (21) Word has length 128 [2024-11-28 03:23:20,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:20,215 INFO L225 Difference]: With dead ends: 1712 [2024-11-28 03:23:20,215 INFO L226 Difference]: Without dead ends: 1176 [2024-11-28 03:23:20,217 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=338, Invalid=1144, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 03:23:20,218 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 150 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:23:20,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 212 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:23:20,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2024-11-28 03:23:20,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 769. [2024-11-28 03:23:20,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 737 states have (on average 1.0366350067842605) internal successors, (764), 738 states have internal predecessors, (764), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-28 03:23:20,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 820 transitions. [2024-11-28 03:23:20,333 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 820 transitions. Word has length 128 [2024-11-28 03:23:20,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:20,334 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 820 transitions. [2024-11-28 03:23:20,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 13.333333333333334) internal successors, (280), 21 states have internal predecessors, (280), 14 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 14 states have call predecessors, (21), 14 states have call successors, (21) [2024-11-28 03:23:20,334 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 820 transitions. [2024-11-28 03:23:20,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-28 03:23:20,338 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:20,338 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1] [2024-11-28 03:23:20,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-28 03:23:20,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 03:23:20,540 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:23:20,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:20,540 INFO L85 PathProgramCache]: Analyzing trace with hash -697317652, now seen corresponding path program 2 times [2024-11-28 03:23:20,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:20,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913691677] [2024-11-28 03:23:20,541 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:23:20,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:20,587 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:23:20,588 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:23:20,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [821364993] [2024-11-28 03:23:20,589 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:23:20,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:20,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:20,592 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:23:20,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 03:23:20,682 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:23:20,682 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:23:20,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 03:23:20,690 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:23:20,936 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:23:20,936 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:23:21,394 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:23:21,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:21,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913691677] [2024-11-28 03:23:21,395 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:23:21,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821364993] [2024-11-28 03:23:21,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821364993] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:23:21,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:23:21,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-28 03:23:21,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843334906] [2024-11-28 03:23:21,397 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:23:21,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:23:21,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:21,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:23:21,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:23:21,399 INFO L87 Difference]: Start difference. First operand 769 states and 820 transitions. Second operand has 12 states, 11 states have (on average 21.454545454545453) internal successors, (236), 12 states have internal predecessors, (236), 9 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-28 03:23:22,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:22,226 INFO L93 Difference]: Finished difference Result 2098 states and 2254 transitions. [2024-11-28 03:23:22,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:23:22,227 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 21.454545454545453) internal successors, (236), 12 states have internal predecessors, (236), 9 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) Word has length 161 [2024-11-28 03:23:22,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:22,234 INFO L225 Difference]: With dead ends: 2098 [2024-11-28 03:23:22,234 INFO L226 Difference]: Without dead ends: 2097 [2024-11-28 03:23:22,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:23:22,236 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 246 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:23:22,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 738 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:23:22,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2097 states. [2024-11-28 03:23:22,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2097 to 1849. [2024-11-28 03:23:22,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1849 states, 1781 states have (on average 1.038742279618192) internal successors, (1850), 1782 states have internal predecessors, (1850), 64 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-28 03:23:22,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1849 states to 1849 states and 1978 transitions. [2024-11-28 03:23:22,478 INFO L78 Accepts]: Start accepts. Automaton has 1849 states and 1978 transitions. Word has length 161 [2024-11-28 03:23:22,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:22,479 INFO L471 AbstractCegarLoop]: Abstraction has 1849 states and 1978 transitions. [2024-11-28 03:23:22,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 21.454545454545453) internal successors, (236), 12 states have internal predecessors, (236), 9 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-28 03:23:22,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1849 states and 1978 transitions. [2024-11-28 03:23:22,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-28 03:23:22,483 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:22,484 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1] [2024-11-28 03:23:22,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-28 03:23:22,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:22,688 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:23:22,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:22,689 INFO L85 PathProgramCache]: Analyzing trace with hash -671458806, now seen corresponding path program 2 times [2024-11-28 03:23:22,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:22,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796530894] [2024-11-28 03:23:22,689 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:23:22,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:22,771 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:23:22,771 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:23:22,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [340097225] [2024-11-28 03:23:22,773 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:23:22,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:22,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:22,776 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:23:22,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 03:23:22,896 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:23:22,896 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:23:22,898 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 03:23:22,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:23:25,151 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 331 proven. 102 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-28 03:23:25,155 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:23:25,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:25,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796530894] [2024-11-28 03:23:25,953 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:23:25,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340097225] [2024-11-28 03:23:25,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340097225] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:25,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:23:25,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 03:23:25,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316654269] [2024-11-28 03:23:25,954 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:23:25,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:23:25,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:25,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:23:25,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=587, Unknown=0, NotChecked=0, Total=702 [2024-11-28 03:23:25,955 INFO L87 Difference]: Start difference. First operand 1849 states and 1978 transitions. Second operand has 15 states, 15 states have (on average 11.333333333333334) internal successors, (170), 15 states have internal predecessors, (170), 9 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-28 03:23:27,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:27,762 INFO L93 Difference]: Finished difference Result 2143 states and 2294 transitions. [2024-11-28 03:23:27,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:23:27,768 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.333333333333334) internal successors, (170), 15 states have internal predecessors, (170), 9 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) Word has length 217 [2024-11-28 03:23:27,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:27,775 INFO L225 Difference]: With dead ends: 2143 [2024-11-28 03:23:27,775 INFO L226 Difference]: Without dead ends: 1785 [2024-11-28 03:23:27,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 395 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=282, Invalid=978, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 03:23:27,780 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 93 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:23:27,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 293 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:23:27,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2024-11-28 03:23:28,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1785. [2024-11-28 03:23:28,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1785 states, 1719 states have (on average 1.0383944153577662) internal successors, (1785), 1720 states have internal predecessors, (1785), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:23:28,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1785 states to 1785 states and 1909 transitions. [2024-11-28 03:23:28,017 INFO L78 Accepts]: Start accepts. Automaton has 1785 states and 1909 transitions. Word has length 217 [2024-11-28 03:23:28,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:28,017 INFO L471 AbstractCegarLoop]: Abstraction has 1785 states and 1909 transitions. [2024-11-28 03:23:28,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.333333333333334) internal successors, (170), 15 states have internal predecessors, (170), 9 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-28 03:23:28,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1785 states and 1909 transitions. [2024-11-28 03:23:28,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-28 03:23:28,024 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:28,024 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 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, 1, 1] [2024-11-28 03:23:28,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 03:23:28,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:28,228 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:23:28,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:28,229 INFO L85 PathProgramCache]: Analyzing trace with hash 2143092938, now seen corresponding path program 1 times [2024-11-28 03:23:28,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:28,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927050028] [2024-11-28 03:23:28,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:28,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:29,072 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 152 proven. 548 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:23:29,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:29,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927050028] [2024-11-28 03:23:29,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927050028] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:29,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066278263] [2024-11-28 03:23:29,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:29,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:29,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:29,076 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:23:29,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 03:23:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:29,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:23:29,210 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:23:30,460 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 152 proven. 548 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:23:30,460 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:23:31,744 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 68 proven. 632 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:23:31,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066278263] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:23:31,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:23:31,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 45 [2024-11-28 03:23:31,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866315182] [2024-11-28 03:23:31,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:23:31,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-28 03:23:31,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:31,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-28 03:23:31,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=1618, Unknown=0, NotChecked=0, Total=1980 [2024-11-28 03:23:31,753 INFO L87 Difference]: Start difference. First operand 1785 states and 1909 transitions. Second operand has 45 states, 45 states have (on average 13.0) internal successors, (585), 45 states have internal predecessors, (585), 24 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 24 states have call predecessors, (27), 24 states have call successors, (27) [2024-11-28 03:23:36,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:36,243 INFO L93 Difference]: Finished difference Result 2576 states and 2759 transitions. [2024-11-28 03:23:36,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-28 03:23:36,244 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 13.0) internal successors, (585), 45 states have internal predecessors, (585), 24 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 24 states have call predecessors, (27), 24 states have call successors, (27) Word has length 275 [2024-11-28 03:23:36,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:36,250 INFO L225 Difference]: With dead ends: 2576 [2024-11-28 03:23:36,250 INFO L226 Difference]: Without dead ends: 2038 [2024-11-28 03:23:36,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 521 SyntacticMatches, 1 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2650 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1440, Invalid=6392, Unknown=0, NotChecked=0, Total=7832 [2024-11-28 03:23:36,253 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 219 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 4209 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 4277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 4209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:23:36,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 782 Invalid, 4277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 4209 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-28 03:23:36,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2038 states. [2024-11-28 03:23:36,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2038 to 2008. [2024-11-28 03:23:36,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2008 states, 1933 states have (on average 1.0372478013450595) internal successors, (2005), 1934 states have internal predecessors, (2005), 71 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-28 03:23:36,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 2147 transitions. [2024-11-28 03:23:36,501 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 2147 transitions. Word has length 275 [2024-11-28 03:23:36,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:36,502 INFO L471 AbstractCegarLoop]: Abstraction has 2008 states and 2147 transitions. [2024-11-28 03:23:36,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 13.0) internal successors, (585), 45 states have internal predecessors, (585), 24 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 24 states have call predecessors, (27), 24 states have call successors, (27) [2024-11-28 03:23:36,502 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 2147 transitions. [2024-11-28 03:23:36,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-28 03:23:36,511 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:36,511 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 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, 1, 1] [2024-11-28 03:23:36,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-28 03:23:36,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:36,712 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:23:36,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:36,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1628901706, now seen corresponding path program 2 times [2024-11-28 03:23:36,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:36,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704460612] [2024-11-28 03:23:36,713 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:23:36,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:36,753 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:23:36,753 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:23:37,493 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 89 proven. 611 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:23:37,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:37,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704460612] [2024-11-28 03:23:37,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704460612] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:37,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806844680] [2024-11-28 03:23:37,494 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:23:37,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:37,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:37,496 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:23:37,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 03:23:37,615 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:23:37,615 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:23:37,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:23:37,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:23:38,074 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 521 proven. 134 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-28 03:23:38,075 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:23:38,554 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 461 proven. 134 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-28 03:23:38,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806844680] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:23:38,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:23:38,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 10, 10] total 33 [2024-11-28 03:23:38,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711713968] [2024-11-28 03:23:38,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:23:38,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-28 03:23:38,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:38,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-28 03:23:38,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=941, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:23:38,558 INFO L87 Difference]: Start difference. First operand 2008 states and 2147 transitions. Second operand has 33 states, 33 states have (on average 13.848484848484848) internal successors, (457), 33 states have internal predecessors, (457), 18 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 18 states have call predecessors, (23), 18 states have call successors, (23) [2024-11-28 03:23:42,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:42,569 INFO L93 Difference]: Finished difference Result 7021 states and 7542 transitions. [2024-11-28 03:23:42,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-28 03:23:42,573 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 13.848484848484848) internal successors, (457), 33 states have internal predecessors, (457), 18 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 18 states have call predecessors, (23), 18 states have call successors, (23) Word has length 275 [2024-11-28 03:23:42,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:42,594 INFO L225 Difference]: With dead ends: 7021 [2024-11-28 03:23:42,594 INFO L226 Difference]: Without dead ends: 6215 [2024-11-28 03:23:42,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 546 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1629 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=856, Invalid=5306, Unknown=0, NotChecked=0, Total=6162 [2024-11-28 03:23:42,601 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 165 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 3131 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 3198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:23:42,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 755 Invalid, 3198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3131 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 03:23:42,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6215 states. [2024-11-28 03:23:43,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6215 to 5439. [2024-11-28 03:23:43,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5439 states, 5229 states have (on average 1.0376745075540257) internal successors, (5426), 5230 states have internal predecessors, (5426), 206 states have call successors, (206), 2 states have call predecessors, (206), 2 states have return successors, (206), 206 states have call predecessors, (206), 206 states have call successors, (206) [2024-11-28 03:23:43,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5439 states to 5439 states and 5838 transitions. [2024-11-28 03:23:43,447 INFO L78 Accepts]: Start accepts. Automaton has 5439 states and 5838 transitions. Word has length 275 [2024-11-28 03:23:43,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:43,447 INFO L471 AbstractCegarLoop]: Abstraction has 5439 states and 5838 transitions. [2024-11-28 03:23:43,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 13.848484848484848) internal successors, (457), 33 states have internal predecessors, (457), 18 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 18 states have call predecessors, (23), 18 states have call successors, (23) [2024-11-28 03:23:43,449 INFO L276 IsEmpty]: Start isEmpty. Operand 5439 states and 5838 transitions. [2024-11-28 03:23:43,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-28 03:23:43,461 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:43,462 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 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, 1, 1] [2024-11-28 03:23:43,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-28 03:23:43,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:43,667 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:23:43,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:43,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1122197302, now seen corresponding path program 3 times [2024-11-28 03:23:43,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:43,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902762606] [2024-11-28 03:23:43,668 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:23:43,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:43,740 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-28 03:23:43,740 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:23:44,615 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 71 proven. 638 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-28 03:23:44,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:44,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902762606] [2024-11-28 03:23:44,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902762606] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:44,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624180390] [2024-11-28 03:23:44,616 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:23:44,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:44,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:44,618 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:23:44,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 03:23:44,972 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 03:23:44,972 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:23:44,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 03:23:44,978 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:23:47,256 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 3 proven. 639 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-28 03:23:47,256 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:23:48,215 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 3 proven. 639 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-28 03:23:48,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624180390] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:23:48,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:23:48,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 11] total 35 [2024-11-28 03:23:48,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12219809] [2024-11-28 03:23:48,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:23:48,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-28 03:23:48,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:48,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-28 03:23:48,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1065, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 03:23:48,218 INFO L87 Difference]: Start difference. First operand 5439 states and 5838 transitions. Second operand has 35 states, 35 states have (on average 16.114285714285714) internal successors, (564), 35 states have internal predecessors, (564), 24 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (30), 24 states have call predecessors, (30), 24 states have call successors, (30) [2024-11-28 03:24:00,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:00,288 INFO L93 Difference]: Finished difference Result 13833 states and 14936 transitions. [2024-11-28 03:24:00,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2024-11-28 03:24:00,289 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 16.114285714285714) internal successors, (564), 35 states have internal predecessors, (564), 24 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (30), 24 states have call predecessors, (30), 24 states have call successors, (30) Word has length 275 [2024-11-28 03:24:00,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:00,324 INFO L225 Difference]: With dead ends: 13833 [2024-11-28 03:24:00,324 INFO L226 Difference]: Without dead ends: 12991 [2024-11-28 03:24:00,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 640 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3516 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=1900, Invalid=9872, Unknown=0, NotChecked=0, Total=11772 [2024-11-28 03:24:00,332 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 1261 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 8424 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 8554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 8424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:00,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 1982 Invalid, 8554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 8424 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2024-11-28 03:24:00,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12991 states. [2024-11-28 03:24:01,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12991 to 11252. [2024-11-28 03:24:01,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11252 states, 10819 states have (on average 1.0364174138090396) internal successors, (11213), 10820 states have internal predecessors, (11213), 429 states have call successors, (429), 2 states have call predecessors, (429), 2 states have return successors, (429), 429 states have call predecessors, (429), 429 states have call successors, (429) [2024-11-28 03:24:01,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11252 states to 11252 states and 12071 transitions. [2024-11-28 03:24:01,580 INFO L78 Accepts]: Start accepts. Automaton has 11252 states and 12071 transitions. Word has length 275 [2024-11-28 03:24:01,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:01,581 INFO L471 AbstractCegarLoop]: Abstraction has 11252 states and 12071 transitions. [2024-11-28 03:24:01,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 16.114285714285714) internal successors, (564), 35 states have internal predecessors, (564), 24 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (30), 24 states have call predecessors, (30), 24 states have call successors, (30) [2024-11-28 03:24:01,582 INFO L276 IsEmpty]: Start isEmpty. Operand 11252 states and 12071 transitions. [2024-11-28 03:24:01,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-11-28 03:24:01,595 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:01,595 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1] [2024-11-28 03:24:01,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-28 03:24:01,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:24:01,796 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:24:01,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:01,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1623100204, now seen corresponding path program 3 times [2024-11-28 03:24:01,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:01,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551008218] [2024-11-28 03:24:01,797 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:24:01,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:02,080 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-28 03:24:02,081 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:24:03,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 122 proven. 1095 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-28 03:24:03,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:03,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551008218] [2024-11-28 03:24:03,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551008218] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:24:03,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188927316] [2024-11-28 03:24:03,815 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:24:03,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:24:03,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:24:03,818 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:24:03,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 03:24:04,074 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 03:24:04,074 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:24:04,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 03:24:04,080 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:24:26,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 270 proven. 143 refuted. 0 times theorem prover too weak. 996 trivial. 0 not checked. [2024-11-28 03:24:26,918 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:25:01,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188927316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:25:01,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:25:01,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 15] total 37 [2024-11-28 03:25:01,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932375362] [2024-11-28 03:25:01,934 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:25:01,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-28 03:25:01,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:25:01,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-28 03:25:01,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=1873, Unknown=3, NotChecked=0, Total=2070 [2024-11-28 03:25:01,936 INFO L87 Difference]: Start difference. First operand 11252 states and 12071 transitions. Second operand has 37 states, 37 states have (on average 9.567567567567568) internal successors, (354), 37 states have internal predecessors, (354), 17 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (21), 18 states have call predecessors, (21), 17 states have call successors, (21) [2024-11-28 03:25:44,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:25:56,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:25:59,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.92s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:26:03,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:26:06,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:26:07,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:26:50,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:27:00,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:28:41,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:28:52,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:52,456 INFO L93 Difference]: Finished difference Result 18724 states and 20092 transitions. [2024-11-28 03:28:52,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-28 03:28:52,457 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 9.567567567567568) internal successors, (354), 37 states have internal predecessors, (354), 17 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (21), 18 states have call predecessors, (21), 17 states have call successors, (21) Word has length 335 [2024-11-28 03:28:52,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:52,488 INFO L225 Difference]: With dead ends: 18724 [2024-11-28 03:28:52,489 INFO L226 Difference]: Without dead ends: 10938 [2024-11-28 03:28:52,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1860 ImplicationChecksByTransitivity, 189.3s TimeCoverageRelationStatistics Valid=1204, Invalid=7700, Unknown=26, NotChecked=0, Total=8930 [2024-11-28 03:28:52,502 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 360 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 7486 mSolverCounterSat, 42 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 7530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 7486 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:52,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 1046 Invalid, 7530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 7486 Invalid, 2 Unknown, 0 Unchecked, 78.0s Time] [2024-11-28 03:28:52,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10938 states. [2024-11-28 03:28:53,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10938 to 10579. [2024-11-28 03:28:53,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10579 states, 10171 states have (on average 1.0360829810244814) internal successors, (10538), 10172 states have internal predecessors, (10538), 404 states have call successors, (404), 2 states have call predecessors, (404), 2 states have return successors, (404), 404 states have call predecessors, (404), 404 states have call successors, (404) [2024-11-28 03:28:53,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10579 states to 10579 states and 11346 transitions. [2024-11-28 03:28:53,699 INFO L78 Accepts]: Start accepts. Automaton has 10579 states and 11346 transitions. Word has length 335 [2024-11-28 03:28:53,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:53,700 INFO L471 AbstractCegarLoop]: Abstraction has 10579 states and 11346 transitions. [2024-11-28 03:28:53,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 9.567567567567568) internal successors, (354), 37 states have internal predecessors, (354), 17 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (21), 18 states have call predecessors, (21), 17 states have call successors, (21) [2024-11-28 03:28:53,700 INFO L276 IsEmpty]: Start isEmpty. Operand 10579 states and 11346 transitions. [2024-11-28 03:28:53,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-28 03:28:53,711 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:53,712 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 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, 1, 1] [2024-11-28 03:28:53,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-28 03:28:53,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:28:53,913 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:28:53,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:53,914 INFO L85 PathProgramCache]: Analyzing trace with hash 735483436, now seen corresponding path program 1 times [2024-11-28 03:28:53,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:53,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552840672] [2024-11-28 03:28:53,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:53,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:55,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 135 proven. 1540 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-28 03:28:55,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:55,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552840672] [2024-11-28 03:28:55,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552840672] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:28:55,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429744670] [2024-11-28 03:28:55,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:55,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:28:55,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:28:55,720 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:28:55,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 03:28:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:55,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 03:28:55,903 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:28:58,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 1019 proven. 656 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-28 03:28:58,176 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:00,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 135 proven. 1540 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-28 03:29:00,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429744670] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:29:00,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:29:00,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26, 26] total 70 [2024-11-28 03:29:00,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280249126] [2024-11-28 03:29:00,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:29:00,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2024-11-28 03:29:00,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:00,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2024-11-28 03:29:00,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=4089, Unknown=0, NotChecked=0, Total=4830 [2024-11-28 03:29:00,012 INFO L87 Difference]: Start difference. First operand 10579 states and 11346 transitions. Second operand has 70 states, 70 states have (on average 12.7) internal successors, (889), 70 states have internal predecessors, (889), 38 states have call successors, (41), 1 states have call predecessors, (41), 2 states have return successors, (42), 38 states have call predecessors, (42), 38 states have call successors, (42) [2024-11-28 03:29:20,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:20,428 INFO L93 Difference]: Finished difference Result 27453 states and 29584 transitions. [2024-11-28 03:29:20,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2024-11-28 03:29:20,429 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 12.7) internal successors, (889), 70 states have internal predecessors, (889), 38 states have call successors, (41), 1 states have call predecessors, (41), 2 states have return successors, (42), 38 states have call predecessors, (42), 38 states have call successors, (42) Word has length 393 [2024-11-28 03:29:20,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:20,480 INFO L225 Difference]: With dead ends: 27453 [2024-11-28 03:29:20,480 INFO L226 Difference]: Without dead ends: 23230 [2024-11-28 03:29:20,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 969 GetRequests, 743 SyntacticMatches, 0 SemanticMatches, 226 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19858 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=11588, Invalid=40168, Unknown=0, NotChecked=0, Total=51756 [2024-11-28 03:29:20,498 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 836 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 9983 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 10171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 9983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:20,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 759 Invalid, 10171 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [188 Valid, 9983 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-28 03:29:20,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23230 states. [2024-11-28 03:29:22,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23230 to 22102. [2024-11-28 03:29:22,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22102 states, 21265 states have (on average 1.0435457324241713) internal successors, (22191), 21266 states have internal predecessors, (22191), 833 states have call successors, (833), 2 states have call predecessors, (833), 2 states have return successors, (833), 833 states have call predecessors, (833), 833 states have call successors, (833) [2024-11-28 03:29:22,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22102 states to 22102 states and 23857 transitions. [2024-11-28 03:29:22,887 INFO L78 Accepts]: Start accepts. Automaton has 22102 states and 23857 transitions. Word has length 393 [2024-11-28 03:29:22,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:22,888 INFO L471 AbstractCegarLoop]: Abstraction has 22102 states and 23857 transitions. [2024-11-28 03:29:22,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 12.7) internal successors, (889), 70 states have internal predecessors, (889), 38 states have call successors, (41), 1 states have call predecessors, (41), 2 states have return successors, (42), 38 states have call predecessors, (42), 38 states have call successors, (42) [2024-11-28 03:29:22,889 INFO L276 IsEmpty]: Start isEmpty. Operand 22102 states and 23857 transitions. [2024-11-28 03:29:22,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-28 03:29:22,903 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:22,903 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 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, 1, 1] [2024-11-28 03:29:22,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-28 03:29:23,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:23,107 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:29:23,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:23,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1854966612, now seen corresponding path program 2 times [2024-11-28 03:29:23,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:23,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363215986] [2024-11-28 03:29:23,108 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:29:23,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:23,248 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:29:23,249 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:29:24,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 202 proven. 1473 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-28 03:29:24,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:24,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363215986] [2024-11-28 03:29:24,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363215986] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:24,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997935324] [2024-11-28 03:29:24,422 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:29:24,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:24,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:24,424 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:24,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 03:29:24,559 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:29:24,559 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:29:24,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-28 03:29:24,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:26,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 530 proven. 1145 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-28 03:29:26,809 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:28,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 270 proven. 1405 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-28 03:29:28,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997935324] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:29:28,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:29:28,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 25, 25] total 67 [2024-11-28 03:29:28,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000682242] [2024-11-28 03:29:28,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:29:28,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-11-28 03:29:28,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:28,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-11-28 03:29:28,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=596, Invalid=3826, Unknown=0, NotChecked=0, Total=4422 [2024-11-28 03:29:28,684 INFO L87 Difference]: Start difference. First operand 22102 states and 23857 transitions. Second operand has 67 states, 67 states have (on average 13.73134328358209) internal successors, (920), 67 states have internal predecessors, (920), 40 states have call successors, (44), 1 states have call predecessors, (44), 2 states have return successors, (46), 40 states have call predecessors, (46), 40 states have call successors, (46) [2024-11-28 03:29:49,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:49,156 INFO L93 Difference]: Finished difference Result 53876 states and 58523 transitions. [2024-11-28 03:29:49,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2024-11-28 03:29:49,157 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 13.73134328358209) internal successors, (920), 67 states have internal predecessors, (920), 40 states have call successors, (44), 1 states have call predecessors, (44), 2 states have return successors, (46), 40 states have call predecessors, (46), 40 states have call successors, (46) Word has length 393 [2024-11-28 03:29:49,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:49,246 INFO L225 Difference]: With dead ends: 53876 [2024-11-28 03:29:49,246 INFO L226 Difference]: Without dead ends: 45701 [2024-11-28 03:29:49,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 927 GetRequests, 743 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11071 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=5790, Invalid=28620, Unknown=0, NotChecked=0, Total=34410 [2024-11-28 03:29:49,262 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 557 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 13366 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 13516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 13366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:49,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 974 Invalid, 13516 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [150 Valid, 13366 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2024-11-28 03:29:49,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45701 states. [2024-11-28 03:29:53,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45701 to 40673. [2024-11-28 03:29:53,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40673 states, 39121 states have (on average 1.0474425500370645) internal successors, (40977), 39122 states have internal predecessors, (40977), 1548 states have call successors, (1548), 2 states have call predecessors, (1548), 2 states have return successors, (1548), 1548 states have call predecessors, (1548), 1548 states have call successors, (1548) [2024-11-28 03:29:53,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40673 states to 40673 states and 44073 transitions. [2024-11-28 03:29:53,548 INFO L78 Accepts]: Start accepts. Automaton has 40673 states and 44073 transitions. Word has length 393 [2024-11-28 03:29:53,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:53,549 INFO L471 AbstractCegarLoop]: Abstraction has 40673 states and 44073 transitions. [2024-11-28 03:29:53,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 13.73134328358209) internal successors, (920), 67 states have internal predecessors, (920), 40 states have call successors, (44), 1 states have call predecessors, (44), 2 states have return successors, (46), 40 states have call predecessors, (46), 40 states have call successors, (46) [2024-11-28 03:29:53,549 INFO L276 IsEmpty]: Start isEmpty. Operand 40673 states and 44073 transitions. [2024-11-28 03:29:53,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2024-11-28 03:29:53,585 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:53,585 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 10, 10, 10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:53,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-28 03:29:53,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:53,790 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:29:53,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:53,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1460869916, now seen corresponding path program 3 times [2024-11-28 03:29:53,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:53,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156070235] [2024-11-28 03:29:53,792 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:29:53,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:53,965 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2024-11-28 03:29:53,965 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:29:56,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2270 backedges. 143 proven. 1800 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-11-28 03:29:56,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:56,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156070235] [2024-11-28 03:29:56,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156070235] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:56,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876870926] [2024-11-28 03:29:56,346 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:29:56,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:56,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:56,351 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:56,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be92ba3b-22a0-4cd1-9948-9ef444d2a237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 03:29:56,888 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-11-28 03:29:56,888 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:29:56,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-28 03:29:56,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:31:45,278 WARN L286 SmtUtils]: Spent 7.04s on a formula simplification. DAG size of input: 48 DAG size of output: 44 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:31:59,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2270 backedges. 138 proven. 1664 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-11-28 03:31:59,267 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:19,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876870926] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:19,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:33:19,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 32] total 57 [2024-11-28 03:33:19,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780577017] [2024-11-28 03:33:19,220 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:19,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-11-28 03:33:19,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:19,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-11-28 03:33:19,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=968, Invalid=5991, Unknown=13, NotChecked=0, Total=6972 [2024-11-28 03:33:19,223 INFO L87 Difference]: Start difference. First operand 40673 states and 44073 transitions. Second operand has 57 states, 57 states have (on average 10.508771929824562) internal successors, (599), 57 states have internal predecessors, (599), 25 states have call successors, (29), 1 states have call predecessors, (29), 3 states have return successors, (31), 26 states have call predecessors, (31), 25 states have call successors, (31) [2024-11-28 03:33:25,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:33:29,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:33:33,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:33:37,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:33:39,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:33:43,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]