./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.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_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1 --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 6977cec8a403ff3f16926270da45a38f7b1f51a39c72ba3797fb74b9637fd796 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:35:35,411 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:35:35,467 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 10:35:35,471 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:35:35,472 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:35:35,492 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:35:35,492 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:35:35,493 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:35:35,493 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:35:35,493 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:35:35,493 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:35:35,493 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:35:35,493 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:35:35,493 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:35:35,494 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:35:35,494 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:35:35,494 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:35:35,494 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:35:35,494 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:35:35,494 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:35:35,494 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:35:35,494 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:35:35,494 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:35:35,494 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:35:35,494 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 10:35:35,494 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 10:35:35,495 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:35:35,495 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:35:35,495 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:35:35,495 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:35:35,495 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:35:35,495 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:35:35,495 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:35:35,495 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:35:35,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:35:35,495 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:35:35,495 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:35:35,495 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:35:35,495 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:35:35,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:35:35,496 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:35:35,496 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:35:35,496 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:35:35,496 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:35:35,496 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:35:35,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:35:35,496 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:35:35,496 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:35:35,496 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:35:35,496 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:35:35,496 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_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1 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 -> 6977cec8a403ff3f16926270da45a38f7b1f51a39c72ba3797fb74b9637fd796 [2024-12-02 10:35:35,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:35:35,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:35:35,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:35:35,747 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:35:35,748 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:35:35,749 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c [2024-12-02 10:35:38,472 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/data/2cd224ac4/02ae1cfd94a0454e9a50b15cfb425708/FLAG43cad0e8a [2024-12-02 10:35:38,646 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:35:38,647 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c [2024-12-02 10:35:38,653 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/data/2cd224ac4/02ae1cfd94a0454e9a50b15cfb425708/FLAG43cad0e8a [2024-12-02 10:35:38,666 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/data/2cd224ac4/02ae1cfd94a0454e9a50b15cfb425708 [2024-12-02 10:35:38,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:35:38,669 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:35:38,670 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:35:38,670 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:35:38,673 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:35:38,674 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:35:38" (1/1) ... [2024-12-02 10:35:38,675 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75d0e229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:38, skipping insertion in model container [2024-12-02 10:35:38,675 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:35:38" (1/1) ... [2024-12-02 10:35:38,686 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:35:38,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:35:38,817 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:35:38,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:35:38,846 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:35:38,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:38 WrapperNode [2024-12-02 10:35:38,847 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:35:38,847 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:35:38,848 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:35:38,848 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:35:38,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:38" (1/1) ... [2024-12-02 10:35:38,859 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:38" (1/1) ... [2024-12-02 10:35:38,878 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2024-12-02 10:35:38,878 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:35:38,879 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:35:38,879 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:35:38,879 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:35:38,886 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:38" (1/1) ... [2024-12-02 10:35:38,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:38" (1/1) ... [2024-12-02 10:35:38,887 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:38" (1/1) ... [2024-12-02 10:35:38,898 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]. [2024-12-02 10:35:38,898 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:38" (1/1) ... [2024-12-02 10:35:38,898 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:38" (1/1) ... [2024-12-02 10:35:38,901 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:38" (1/1) ... [2024-12-02 10:35:38,902 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:38" (1/1) ... [2024-12-02 10:35:38,906 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:38" (1/1) ... [2024-12-02 10:35:38,907 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:38" (1/1) ... [2024-12-02 10:35:38,907 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:38" (1/1) ... [2024-12-02 10:35:38,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:35:38,910 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:35:38,910 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:35:38,910 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:35:38,911 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:38" (1/1) ... [2024-12-02 10:35:38,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:35:38,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:38,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:35:38,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:35:38,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:35:38,960 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 10:35:38,960 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 10:35:38,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:35:38,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:35:38,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:35:38,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 10:35:38,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 10:35:39,003 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:35:39,005 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:35:39,246 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-12-02 10:35:39,246 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:35:39,256 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:35:39,256 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 10:35:39,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:35:39 BoogieIcfgContainer [2024-12-02 10:35:39,256 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:35:39,258 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:35:39,259 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:35:39,262 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:35:39,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:35:38" (1/3) ... [2024-12-02 10:35:39,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b227937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:35:39, skipping insertion in model container [2024-12-02 10:35:39,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:38" (2/3) ... [2024-12-02 10:35:39,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b227937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:35:39, skipping insertion in model container [2024-12-02 10:35:39,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:35:39" (3/3) ... [2024-12-02 10:35:39,264 INFO L128 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound20.c [2024-12-02 10:35:39,276 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:35:39,278 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hard-ll_valuebound20.c that has 3 procedures, 79 locations, 1 initial locations, 2 loop locations, and 24 error locations. [2024-12-02 10:35:39,325 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:35:39,337 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;@218ef7cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:35:39,337 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-12-02 10:35:39,341 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 43 states have (on average 1.744186046511628) internal successors, (75), 66 states have internal predecessors, (75), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-12-02 10:35:39,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-02 10:35:39,347 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:39,347 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:35:39,348 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:35:39,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:39,353 INFO L85 PathProgramCache]: Analyzing trace with hash 562289298, now seen corresponding path program 1 times [2024-12-02 10:35:39,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:39,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947891979] [2024-12-02 10:35:39,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:39,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:39,460 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 10:35:39,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:39,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947891979] [2024-12-02 10:35:39,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947891979] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:35:39,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12194103] [2024-12-02 10:35:39,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:39,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:39,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:39,463 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:39,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:35:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:39,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 10:35:39,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:39,523 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 10:35:39,523 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:35:39,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12194103] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:39,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:35:39,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 10:35:39,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315530248] [2024-12-02 10:35:39,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:39,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 10:35:39,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:39,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 10:35:39,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:35:39,549 INFO L87 Difference]: Start difference. First operand has 79 states, 43 states have (on average 1.744186046511628) internal successors, (75), 66 states have internal predecessors, (75), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:35:39,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:39,570 INFO L93 Difference]: Finished difference Result 154 states and 195 transitions. [2024-12-02 10:35:39,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 10:35:39,572 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2024-12-02 10:35:39,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:39,577 INFO L225 Difference]: With dead ends: 154 [2024-12-02 10:35:39,577 INFO L226 Difference]: Without dead ends: 71 [2024-12-02 10:35:39,580 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:35:39,583 INFO L435 NwaCegarLoop]: 88 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, 88 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 [2024-12-02 10:35:39,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:39,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-12-02 10:35:39,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-12-02 10:35:39,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 37 states have (on average 1.7027027027027026) internal successors, (63), 60 states have internal predecessors, (63), 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) [2024-12-02 10:35:39,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2024-12-02 10:35:39,614 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 21 [2024-12-02 10:35:39,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:39,614 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2024-12-02 10:35:39,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:35:39,615 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2024-12-02 10:35:39,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 10:35:39,616 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:39,616 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:35:39,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:35:39,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 10:35:39,817 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:35:39,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:39,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1304517987, now seen corresponding path program 1 times [2024-12-02 10:35:39,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:39,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084001240] [2024-12-02 10:35:39,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:39,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 10:35:39,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [429392815] [2024-12-02 10:35:39,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:39,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:39,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:39,854 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:39,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:35:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:39,898 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:35:39,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:39,927 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 10:35:39,927 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:35:39,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:39,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084001240] [2024-12-02 10:35:39,928 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:35:39,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429392815] [2024-12-02 10:35:39,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429392815] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:39,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:39,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:35:39,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972920433] [2024-12-02 10:35:39,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:39,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:39,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:39,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:39,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:39,930 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-12-02 10:35:40,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:40,008 INFO L93 Difference]: Finished difference Result 144 states and 163 transitions. [2024-12-02 10:35:40,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:40,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 30 [2024-12-02 10:35:40,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:40,009 INFO L225 Difference]: With dead ends: 144 [2024-12-02 10:35:40,009 INFO L226 Difference]: Without dead ends: 96 [2024-12-02 10:35:40,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:40,011 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 19 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:40,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 127 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:40,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-12-02 10:35:40,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 90. [2024-12-02 10:35:40,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 74 states have internal predecessors, (84), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 10:35:40,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 110 transitions. [2024-12-02 10:35:40,022 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 110 transitions. Word has length 30 [2024-12-02 10:35:40,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:40,023 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 110 transitions. [2024-12-02 10:35:40,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-12-02 10:35:40,023 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 110 transitions. [2024-12-02 10:35:40,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-12-02 10:35:40,024 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:40,024 INFO L218 NwaCegarLoop]: trace histogram [3, 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] [2024-12-02 10:35:40,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:35:40,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:40,225 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:35:40,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:40,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1077070625, now seen corresponding path program 1 times [2024-12-02 10:35:40,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:40,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915328051] [2024-12-02 10:35:40,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:40,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:40,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 10:35:40,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [371416087] [2024-12-02 10:35:40,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:40,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:40,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:40,257 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:40,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:35:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:40,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:35:40,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:40,330 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 10:35:40,330 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:35:40,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:40,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915328051] [2024-12-02 10:35:40,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:35:40,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371416087] [2024-12-02 10:35:40,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371416087] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:40,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:40,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:35:40,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024126009] [2024-12-02 10:35:40,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:40,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:40,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:40,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:40,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:40,332 INFO L87 Difference]: Start difference. First operand 90 states and 110 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-12-02 10:35:40,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:40,413 INFO L93 Difference]: Finished difference Result 124 states and 153 transitions. [2024-12-02 10:35:40,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:40,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 38 [2024-12-02 10:35:40,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:40,414 INFO L225 Difference]: With dead ends: 124 [2024-12-02 10:35:40,414 INFO L226 Difference]: Without dead ends: 120 [2024-12-02 10:35:40,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:40,415 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 39 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:40,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 105 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:40,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-12-02 10:35:40,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 106. [2024-12-02 10:35:40,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 65 states have (on average 1.6307692307692307) internal successors, (106), 88 states have internal predecessors, (106), 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) [2024-12-02 10:35:40,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 136 transitions. [2024-12-02 10:35:40,426 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 136 transitions. Word has length 38 [2024-12-02 10:35:40,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:40,426 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 136 transitions. [2024-12-02 10:35:40,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-12-02 10:35:40,427 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 136 transitions. [2024-12-02 10:35:40,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-12-02 10:35:40,427 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:40,427 INFO L218 NwaCegarLoop]: trace histogram [3, 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] [2024-12-02 10:35:40,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:35:40,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:40,628 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:35:40,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:40,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1077070581, now seen corresponding path program 1 times [2024-12-02 10:35:40,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:40,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505907425] [2024-12-02 10:35:40,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:40,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:40,729 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 10:35:40,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:40,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505907425] [2024-12-02 10:35:40,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505907425] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:40,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:40,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:35:40,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618799366] [2024-12-02 10:35:40,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:40,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:40,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:40,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:40,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:40,731 INFO L87 Difference]: Start difference. First operand 106 states and 136 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-12-02 10:35:40,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:40,778 INFO L93 Difference]: Finished difference Result 106 states and 136 transitions. [2024-12-02 10:35:40,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:40,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 38 [2024-12-02 10:35:40,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:40,780 INFO L225 Difference]: With dead ends: 106 [2024-12-02 10:35:40,780 INFO L226 Difference]: Without dead ends: 104 [2024-12-02 10:35:40,780 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 [2024-12-02 10:35:40,781 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 38 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:40,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 75 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:40,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-12-02 10:35:40,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-12-02 10:35:40,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.5692307692307692) internal successors, (102), 86 states have internal predecessors, (102), 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) [2024-12-02 10:35:40,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2024-12-02 10:35:40,793 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 38 [2024-12-02 10:35:40,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:40,793 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2024-12-02 10:35:40,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-12-02 10:35:40,793 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2024-12-02 10:35:40,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-12-02 10:35:40,794 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:40,794 INFO L218 NwaCegarLoop]: trace histogram [3, 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] [2024-12-02 10:35:40,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:35:40,794 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:35:40,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:40,795 INFO L85 PathProgramCache]: Analyzing trace with hash 970550418, now seen corresponding path program 1 times [2024-12-02 10:35:40,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:40,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892539605] [2024-12-02 10:35:40,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:40,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:40,872 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 10:35:40,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:40,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892539605] [2024-12-02 10:35:40,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892539605] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:40,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:40,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:35:40,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568019605] [2024-12-02 10:35:40,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:40,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:40,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:40,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:40,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:40,874 INFO L87 Difference]: Start difference. First operand 104 states and 132 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-12-02 10:35:40,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:40,932 INFO L93 Difference]: Finished difference Result 111 states and 137 transitions. [2024-12-02 10:35:40,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:40,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 39 [2024-12-02 10:35:40,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:40,933 INFO L225 Difference]: With dead ends: 111 [2024-12-02 10:35:40,933 INFO L226 Difference]: Without dead ends: 110 [2024-12-02 10:35:40,934 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 [2024-12-02 10:35:40,934 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 13 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:40,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 122 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:40,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-12-02 10:35:40,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 104. [2024-12-02 10:35:40,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.5538461538461539) internal successors, (101), 86 states have internal predecessors, (101), 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) [2024-12-02 10:35:40,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 131 transitions. [2024-12-02 10:35:40,942 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 131 transitions. Word has length 39 [2024-12-02 10:35:40,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:40,943 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 131 transitions. [2024-12-02 10:35:40,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-12-02 10:35:40,943 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 131 transitions. [2024-12-02 10:35:40,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-02 10:35:40,944 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:40,944 INFO L218 NwaCegarLoop]: trace histogram [3, 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] [2024-12-02 10:35:40,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 10:35:40,944 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:35:40,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:40,945 INFO L85 PathProgramCache]: Analyzing trace with hash 22250241, now seen corresponding path program 1 times [2024-12-02 10:35:40,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:40,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244053550] [2024-12-02 10:35:40,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:40,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:41,041 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 10:35:41,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:41,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244053550] [2024-12-02 10:35:41,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244053550] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:41,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:41,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:35:41,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790889494] [2024-12-02 10:35:41,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:41,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:35:41,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:41,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:35:41,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:35:41,043 INFO L87 Difference]: Start difference. First operand 104 states and 131 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-12-02 10:35:41,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:41,252 INFO L93 Difference]: Finished difference Result 118 states and 144 transitions. [2024-12-02 10:35:41,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:35:41,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 40 [2024-12-02 10:35:41,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:41,253 INFO L225 Difference]: With dead ends: 118 [2024-12-02 10:35:41,254 INFO L226 Difference]: Without dead ends: 117 [2024-12-02 10:35:41,254 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:35:41,254 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 82 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:41,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 103 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:35:41,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-12-02 10:35:41,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 107. [2024-12-02 10:35:41,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 68 states have (on average 1.5294117647058822) internal successors, (104), 89 states have internal predecessors, (104), 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) [2024-12-02 10:35:41,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 134 transitions. [2024-12-02 10:35:41,285 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 134 transitions. Word has length 40 [2024-12-02 10:35:41,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:41,285 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 134 transitions. [2024-12-02 10:35:41,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-12-02 10:35:41,285 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 134 transitions. [2024-12-02 10:35:41,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-12-02 10:35:41,286 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:41,286 INFO L218 NwaCegarLoop]: trace histogram [3, 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] [2024-12-02 10:35:41,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:35:41,286 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:35:41,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:41,287 INFO L85 PathProgramCache]: Analyzing trace with hash 689757554, now seen corresponding path program 1 times [2024-12-02 10:35:41,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:41,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577718444] [2024-12-02 10:35:41,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:41,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 10:35:41,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1108439708] [2024-12-02 10:35:41,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:41,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:41,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:41,305 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:41,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:35:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:41,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 10:35:41,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:41,431 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 10:35:41,431 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:35:41,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:41,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577718444] [2024-12-02 10:35:41,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:35:41,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108439708] [2024-12-02 10:35:41,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108439708] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:41,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:41,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:35:41,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106592895] [2024-12-02 10:35:41,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:41,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:41,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:41,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:41,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:41,433 INFO L87 Difference]: Start difference. First operand 107 states and 134 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2024-12-02 10:35:41,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:41,503 INFO L93 Difference]: Finished difference Result 118 states and 141 transitions. [2024-12-02 10:35:41,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:41,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 41 [2024-12-02 10:35:41,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:41,505 INFO L225 Difference]: With dead ends: 118 [2024-12-02 10:35:41,505 INFO L226 Difference]: Without dead ends: 115 [2024-12-02 10:35:41,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:41,506 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 30 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:41,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 95 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:41,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-12-02 10:35:41,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 108. [2024-12-02 10:35:41,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.4927536231884058) internal successors, (103), 90 states have internal predecessors, (103), 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) [2024-12-02 10:35:41,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 133 transitions. [2024-12-02 10:35:41,522 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 133 transitions. Word has length 41 [2024-12-02 10:35:41,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:41,522 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 133 transitions. [2024-12-02 10:35:41,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2024-12-02 10:35:41,523 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 133 transitions. [2024-12-02 10:35:41,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-12-02 10:35:41,523 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:41,524 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:35:41,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 10:35:41,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-12-02 10:35:41,724 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:35:41,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:41,725 INFO L85 PathProgramCache]: Analyzing trace with hash -778124647, now seen corresponding path program 1 times [2024-12-02 10:35:41,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:41,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587078951] [2024-12-02 10:35:41,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:41,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 10:35:41,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1740086158] [2024-12-02 10:35:41,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:41,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:41,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:41,745 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:41,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 10:35:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:41,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 10:35:41,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:41,944 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-12-02 10:35:41,944 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:35:42,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:42,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587078951] [2024-12-02 10:35:42,108 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:35:42,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740086158] [2024-12-02 10:35:42,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740086158] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:35:42,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:35:42,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-12-02 10:35:42,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969585907] [2024-12-02 10:35:42,108 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 10:35:42,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:35:42,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:42,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:35:42,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:35:42,109 INFO L87 Difference]: Start difference. First operand 108 states and 133 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 10:35:42,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:42,275 INFO L93 Difference]: Finished difference Result 121 states and 150 transitions. [2024-12-02 10:35:42,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:35:42,275 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 52 [2024-12-02 10:35:42,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:42,276 INFO L225 Difference]: With dead ends: 121 [2024-12-02 10:35:42,276 INFO L226 Difference]: Without dead ends: 113 [2024-12-02 10:35:42,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:35:42,277 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 53 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:42,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 214 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:42,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-12-02 10:35:42,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-12-02 10:35:42,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 76 states have (on average 1.381578947368421) internal successors, (105), 93 states have internal predecessors, (105), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 10:35:42,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 139 transitions. [2024-12-02 10:35:42,296 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 139 transitions. Word has length 52 [2024-12-02 10:35:42,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:42,296 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 139 transitions. [2024-12-02 10:35:42,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 10:35:42,296 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 139 transitions. [2024-12-02 10:35:42,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-12-02 10:35:42,297 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:42,297 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-12-02 10:35:42,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 10:35:42,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-12-02 10:35:42,498 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:35:42,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:42,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1647939770, now seen corresponding path program 1 times [2024-12-02 10:35:42,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:42,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527627566] [2024-12-02 10:35:42,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:42,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 10:35:42,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1258796195] [2024-12-02 10:35:42,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:42,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:42,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:42,519 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:42,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 10:35:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:42,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 10:35:42,576 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:42,710 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-12-02 10:35:42,710 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:35:42,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:42,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527627566] [2024-12-02 10:35:42,855 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:35:42,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258796195] [2024-12-02 10:35:42,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258796195] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:35:42,855 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:35:42,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-12-02 10:35:42,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313738042] [2024-12-02 10:35:42,855 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 10:35:42,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:35:42,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:42,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:35:42,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:35:42,856 INFO L87 Difference]: Start difference. First operand 113 states and 139 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 10:35:43,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:43,070 INFO L93 Difference]: Finished difference Result 180 states and 233 transitions. [2024-12-02 10:35:43,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:35:43,070 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 53 [2024-12-02 10:35:43,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:43,072 INFO L225 Difference]: With dead ends: 180 [2024-12-02 10:35:43,072 INFO L226 Difference]: Without dead ends: 176 [2024-12-02 10:35:43,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:35:43,073 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 83 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:43,073 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 216 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:35:43,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-12-02 10:35:43,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 167. [2024-12-02 10:35:43,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 121 states have (on average 1.3884297520661157) internal successors, (168), 138 states have internal predecessors, (168), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-12-02 10:35:43,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 220 transitions. [2024-12-02 10:35:43,096 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 220 transitions. Word has length 53 [2024-12-02 10:35:43,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:43,096 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 220 transitions. [2024-12-02 10:35:43,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 10:35:43,097 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 220 transitions. [2024-12-02 10:35:43,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-12-02 10:35:43,097 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:43,098 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:35:43,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 10:35:43,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-12-02 10:35:43,298 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:35:43,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:43,298 INFO L85 PathProgramCache]: Analyzing trace with hash 351566611, now seen corresponding path program 1 times [2024-12-02 10:35:43,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:43,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812837193] [2024-12-02 10:35:43,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:43,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:43,381 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-12-02 10:35:43,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:43,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812837193] [2024-12-02 10:35:43,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812837193] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:43,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:43,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:35:43,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105725764] [2024-12-02 10:35:43,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:43,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:35:43,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:43,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:35:43,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:35:43,382 INFO L87 Difference]: Start difference. First operand 167 states and 220 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:35:43,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:43,512 INFO L93 Difference]: Finished difference Result 176 states and 229 transitions. [2024-12-02 10:35:43,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:35:43,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2024-12-02 10:35:43,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:43,514 INFO L225 Difference]: With dead ends: 176 [2024-12-02 10:35:43,514 INFO L226 Difference]: Without dead ends: 162 [2024-12-02 10:35:43,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:35:43,515 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 37 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:43,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 133 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:43,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-12-02 10:35:43,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 137. [2024-12-02 10:35:43,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 97 states have (on average 1.443298969072165) internal successors, (140), 114 states have internal predecessors, (140), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 10:35:43,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 180 transitions. [2024-12-02 10:35:43,532 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 180 transitions. Word has length 57 [2024-12-02 10:35:43,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:43,533 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 180 transitions. [2024-12-02 10:35:43,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:35:43,533 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 180 transitions. [2024-12-02 10:35:43,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-12-02 10:35:43,534 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:43,534 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:35:43,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 10:35:43,534 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:35:43,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:43,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1069253660, now seen corresponding path program 1 times [2024-12-02 10:35:43,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:43,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499815658] [2024-12-02 10:35:43,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:43,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:43,603 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-02 10:35:43,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:43,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499815658] [2024-12-02 10:35:43,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499815658] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:35:43,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220186165] [2024-12-02 10:35:43,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:43,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:43,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:43,605 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:43,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 10:35:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:43,650 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:35:43,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:43,684 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-02 10:35:43,685 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:35:43,760 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-02 10:35:43,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220186165] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:35:43,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:35:43,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-12-02 10:35:43,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302885264] [2024-12-02 10:35:43,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:35:43,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:35:43,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:43,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:35:43,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:35:43,761 INFO L87 Difference]: Start difference. First operand 137 states and 180 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-12-02 10:35:43,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:43,907 INFO L93 Difference]: Finished difference Result 240 states and 312 transitions. [2024-12-02 10:35:43,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:35:43,907 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 61 [2024-12-02 10:35:43,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:43,909 INFO L225 Difference]: With dead ends: 240 [2024-12-02 10:35:43,909 INFO L226 Difference]: Without dead ends: 238 [2024-12-02 10:35:43,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:35:43,910 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 145 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:43,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 182 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:43,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-12-02 10:35:43,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 190. [2024-12-02 10:35:43,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 140 states have (on average 1.4428571428571428) internal successors, (202), 157 states have internal predecessors, (202), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 10:35:43,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 262 transitions. [2024-12-02 10:35:43,934 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 262 transitions. Word has length 61 [2024-12-02 10:35:43,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:43,935 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 262 transitions. [2024-12-02 10:35:43,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-12-02 10:35:43,935 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 262 transitions. [2024-12-02 10:35:43,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-02 10:35:43,936 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:43,936 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:35:43,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 10:35:44,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 10:35:44,137 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:35:44,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:44,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1687245116, now seen corresponding path program 2 times [2024-12-02 10:35:44,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:44,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151861820] [2024-12-02 10:35:44,137 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:35:44,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:44,158 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:35:44,158 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 10:35:44,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1009087827] [2024-12-02 10:35:44,159 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:35:44,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:44,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:44,161 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:44,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 10:35:44,212 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:35:44,212 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:35:44,213 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 10:35:44,216 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:44,471 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-12-02 10:35:44,472 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:35:44,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:44,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151861820] [2024-12-02 10:35:44,648 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:35:44,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009087827] [2024-12-02 10:35:44,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009087827] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:35:44,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:35:44,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-12-02 10:35:44,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168123260] [2024-12-02 10:35:44,649 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 10:35:44,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:35:44,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:44,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:35:44,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:35:44,650 INFO L87 Difference]: Start difference. First operand 190 states and 262 transitions. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-12-02 10:35:45,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:45,161 INFO L93 Difference]: Finished difference Result 255 states and 348 transitions. [2024-12-02 10:35:45,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:35:45,162 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 75 [2024-12-02 10:35:45,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:45,163 INFO L225 Difference]: With dead ends: 255 [2024-12-02 10:35:45,163 INFO L226 Difference]: Without dead ends: 251 [2024-12-02 10:35:45,164 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:35:45,164 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 134 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:45,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 359 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:35:45,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-12-02 10:35:45,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 190. [2024-12-02 10:35:45,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 140 states have (on average 1.4285714285714286) internal successors, (200), 157 states have internal predecessors, (200), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 10:35:45,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 260 transitions. [2024-12-02 10:35:45,193 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 260 transitions. Word has length 75 [2024-12-02 10:35:45,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:45,193 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 260 transitions. [2024-12-02 10:35:45,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-12-02 10:35:45,194 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 260 transitions. [2024-12-02 10:35:45,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 10:35:45,195 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:45,195 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:35:45,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 10:35:45,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 10:35:45,395 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:35:45,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:45,396 INFO L85 PathProgramCache]: Analyzing trace with hash 795892966, now seen corresponding path program 1 times [2024-12-02 10:35:45,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:45,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708760168] [2024-12-02 10:35:45,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:45,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:45,466 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-12-02 10:35:45,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:45,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708760168] [2024-12-02 10:35:45,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708760168] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:45,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:45,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:35:45,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713347416] [2024-12-02 10:35:45,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:45,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:45,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:45,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:45,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:45,468 INFO L87 Difference]: Start difference. First operand 190 states and 260 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-12-02 10:35:45,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:45,515 INFO L93 Difference]: Finished difference Result 190 states and 260 transitions. [2024-12-02 10:35:45,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:45,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 82 [2024-12-02 10:35:45,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:45,517 INFO L225 Difference]: With dead ends: 190 [2024-12-02 10:35:45,517 INFO L226 Difference]: Without dead ends: 189 [2024-12-02 10:35:45,517 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 [2024-12-02 10:35:45,518 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 2 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:45,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 112 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:45,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-12-02 10:35:45,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2024-12-02 10:35:45,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 140 states have (on average 1.4071428571428573) internal successors, (197), 156 states have internal predecessors, (197), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 10:35:45,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 257 transitions. [2024-12-02 10:35:45,541 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 257 transitions. Word has length 82 [2024-12-02 10:35:45,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:45,541 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 257 transitions. [2024-12-02 10:35:45,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-12-02 10:35:45,541 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 257 transitions. [2024-12-02 10:35:45,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 10:35:45,542 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:45,542 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:35:45,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 10:35:45,543 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:35:45,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:45,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1097121721, now seen corresponding path program 1 times [2024-12-02 10:35:45,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:45,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873315936] [2024-12-02 10:35:45,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:45,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:45,740 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-12-02 10:35:45,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:45,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873315936] [2024-12-02 10:35:45,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873315936] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:45,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:45,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:35:45,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232675961] [2024-12-02 10:35:45,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:45,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:35:45,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:45,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:35:45,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:35:45,742 INFO L87 Difference]: Start difference. First operand 189 states and 257 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 10:35:46,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:46,063 INFO L93 Difference]: Finished difference Result 344 states and 486 transitions. [2024-12-02 10:35:46,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:35:46,064 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 83 [2024-12-02 10:35:46,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:46,065 INFO L225 Difference]: With dead ends: 344 [2024-12-02 10:35:46,065 INFO L226 Difference]: Without dead ends: 343 [2024-12-02 10:35:46,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:35:46,066 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 97 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:46,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 202 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:35:46,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-12-02 10:35:46,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 285. [2024-12-02 10:35:46,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 224 states have (on average 1.4732142857142858) internal successors, (330), 240 states have internal predecessors, (330), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 10:35:46,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 414 transitions. [2024-12-02 10:35:46,099 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 414 transitions. Word has length 83 [2024-12-02 10:35:46,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:46,100 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 414 transitions. [2024-12-02 10:35:46,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 10:35:46,100 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 414 transitions. [2024-12-02 10:35:46,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 10:35:46,100 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:46,101 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:35:46,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 10:35:46,101 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:35:46,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:46,101 INFO L85 PathProgramCache]: Analyzing trace with hash 348965128, now seen corresponding path program 1 times [2024-12-02 10:35:46,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:46,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892530220] [2024-12-02 10:35:46,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:46,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:46,273 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-12-02 10:35:46,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:46,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892530220] [2024-12-02 10:35:46,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892530220] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:35:46,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864927943] [2024-12-02 10:35:46,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:46,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:46,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:46,275 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:46,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 10:35:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:46,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 10:35:46,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:46,498 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-12-02 10:35:46,498 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:35:46,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864927943] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:46,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:35:46,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-12-02 10:35:46,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297467912] [2024-12-02 10:35:46,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:46,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:35:46,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:46,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:35:46,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:35:46,500 INFO L87 Difference]: Start difference. First operand 285 states and 414 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:35:46,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:46,699 INFO L93 Difference]: Finished difference Result 341 states and 482 transitions. [2024-12-02 10:35:46,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:35:46,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2024-12-02 10:35:46,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:46,702 INFO L225 Difference]: With dead ends: 341 [2024-12-02 10:35:46,702 INFO L226 Difference]: Without dead ends: 340 [2024-12-02 10:35:46,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:35:46,703 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 49 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:46,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 137 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:46,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-12-02 10:35:46,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 294. [2024-12-02 10:35:46,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 233 states have (on average 1.4549356223175967) internal successors, (339), 249 states have internal predecessors, (339), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 10:35:46,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 423 transitions. [2024-12-02 10:35:46,753 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 423 transitions. Word has length 84 [2024-12-02 10:35:46,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:46,753 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 423 transitions. [2024-12-02 10:35:46,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:35:46,754 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 423 transitions. [2024-12-02 10:35:46,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 10:35:46,754 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:46,755 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:35:46,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-12-02 10:35:46,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:46,955 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:35:46,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:46,955 INFO L85 PathProgramCache]: Analyzing trace with hash -2066982807, now seen corresponding path program 1 times [2024-12-02 10:35:46,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:46,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048174440] [2024-12-02 10:35:46,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:46,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:47,113 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-12-02 10:35:47,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:47,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048174440] [2024-12-02 10:35:47,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048174440] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:35:47,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908350367] [2024-12-02 10:35:47,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:47,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:47,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:47,115 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:47,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 10:35:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:47,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 10:35:47,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:47,262 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-12-02 10:35:47,262 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:35:47,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908350367] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:47,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:35:47,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-12-02 10:35:47,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741454029] [2024-12-02 10:35:47,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:47,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:35:47,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:47,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:35:47,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:35:47,264 INFO L87 Difference]: Start difference. First operand 294 states and 423 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:35:47,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:47,377 INFO L93 Difference]: Finished difference Result 301 states and 429 transitions. [2024-12-02 10:35:47,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:35:47,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 85 [2024-12-02 10:35:47,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:47,380 INFO L225 Difference]: With dead ends: 301 [2024-12-02 10:35:47,380 INFO L226 Difference]: Without dead ends: 299 [2024-12-02 10:35:47,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:35:47,381 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 26 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:47,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 91 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:47,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-12-02 10:35:47,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 297. [2024-12-02 10:35:47,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 236 states have (on average 1.4406779661016949) internal successors, (340), 252 states have internal predecessors, (340), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 10:35:47,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 424 transitions. [2024-12-02 10:35:47,405 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 424 transitions. Word has length 85 [2024-12-02 10:35:47,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:47,405 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 424 transitions. [2024-12-02 10:35:47,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:35:47,406 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 424 transitions. [2024-12-02 10:35:47,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 10:35:47,406 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:47,407 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:35:47,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 10:35:47,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:47,607 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:35:47,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:47,607 INFO L85 PathProgramCache]: Analyzing trace with hash 348042500, now seen corresponding path program 1 times [2024-12-02 10:35:47,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:47,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448855503] [2024-12-02 10:35:47,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:47,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 10:35:47,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1344205138] [2024-12-02 10:35:47,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:47,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:47,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:47,630 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:47,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 10:35:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:47,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 10:35:47,686 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:48,203 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-12-02 10:35:48,203 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:35:48,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:48,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448855503] [2024-12-02 10:35:48,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:35:48,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344205138] [2024-12-02 10:35:48,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344205138] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:35:48,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:35:48,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-12-02 10:35:48,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713348241] [2024-12-02 10:35:48,664 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 10:35:48,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:35:48,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:48,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:35:48,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:35:48,665 INFO L87 Difference]: Start difference. First operand 297 states and 424 transitions. Second operand has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-12-02 10:35:49,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:49,201 INFO L93 Difference]: Finished difference Result 370 states and 523 transitions. [2024-12-02 10:35:49,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:35:49,202 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 86 [2024-12-02 10:35:49,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:49,203 INFO L225 Difference]: With dead ends: 370 [2024-12-02 10:35:49,203 INFO L226 Difference]: Without dead ends: 369 [2024-12-02 10:35:49,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:35:49,204 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 121 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:49,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 247 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:35:49,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-12-02 10:35:49,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 343. [2024-12-02 10:35:49,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 276 states have (on average 1.4130434782608696) internal successors, (390), 292 states have internal predecessors, (390), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:35:49,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 486 transitions. [2024-12-02 10:35:49,230 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 486 transitions. Word has length 86 [2024-12-02 10:35:49,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:49,230 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 486 transitions. [2024-12-02 10:35:49,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-12-02 10:35:49,231 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 486 transitions. [2024-12-02 10:35:49,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 10:35:49,231 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:49,231 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-12-02 10:35:49,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-12-02 10:35:49,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:49,432 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:35:49,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:49,433 INFO L85 PathProgramCache]: Analyzing trace with hash -2095584309, now seen corresponding path program 1 times [2024-12-02 10:35:49,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:49,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334225225] [2024-12-02 10:35:49,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:49,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 10:35:49,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [983503826] [2024-12-02 10:35:49,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:49,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:49,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:49,456 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:49,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 10:35:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:49,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 10:35:49,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:49,957 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-12-02 10:35:49,957 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:35:50,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:50,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334225225] [2024-12-02 10:35:50,266 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:35:50,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983503826] [2024-12-02 10:35:50,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983503826] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:35:50,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:35:50,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-12-02 10:35:50,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041168926] [2024-12-02 10:35:50,267 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 10:35:50,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:35:50,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:50,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:35:50,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:35:50,268 INFO L87 Difference]: Start difference. First operand 343 states and 486 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-12-02 10:35:50,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:50,711 INFO L93 Difference]: Finished difference Result 403 states and 570 transitions. [2024-12-02 10:35:50,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 10:35:50,712 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 87 [2024-12-02 10:35:50,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:50,714 INFO L225 Difference]: With dead ends: 403 [2024-12-02 10:35:50,714 INFO L226 Difference]: Without dead ends: 402 [2024-12-02 10:35:50,714 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:35:50,715 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 116 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:50,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 174 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:35:50,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-12-02 10:35:50,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 389. [2024-12-02 10:35:50,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 316 states have (on average 1.3860759493670887) internal successors, (438), 332 states have internal predecessors, (438), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 10:35:50,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 546 transitions. [2024-12-02 10:35:50,760 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 546 transitions. Word has length 87 [2024-12-02 10:35:50,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:50,760 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 546 transitions. [2024-12-02 10:35:50,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-12-02 10:35:50,761 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 546 transitions. [2024-12-02 10:35:50,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-12-02 10:35:50,762 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:50,762 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-12-02 10:35:50,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 10:35:50,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 10:35:50,962 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:35:50,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:50,963 INFO L85 PathProgramCache]: Analyzing trace with hash -538604058, now seen corresponding path program 1 times [2024-12-02 10:35:50,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:50,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685569230] [2024-12-02 10:35:50,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:50,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:51,044 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-12-02 10:35:51,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:51,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685569230] [2024-12-02 10:35:51,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685569230] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:51,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:51,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:35:51,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004381096] [2024-12-02 10:35:51,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:51,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:35:51,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:51,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:35:51,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:35:51,046 INFO L87 Difference]: Start difference. First operand 389 states and 546 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-12-02 10:35:51,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:51,222 INFO L93 Difference]: Finished difference Result 389 states and 546 transitions. [2024-12-02 10:35:51,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:35:51,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 88 [2024-12-02 10:35:51,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:51,225 INFO L225 Difference]: With dead ends: 389 [2024-12-02 10:35:51,225 INFO L226 Difference]: Without dead ends: 388 [2024-12-02 10:35:51,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:35:51,226 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 68 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:51,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 111 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:51,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-12-02 10:35:51,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 379. [2024-12-02 10:35:51,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 307 states have (on average 1.3517915309446253) internal successors, (415), 322 states have internal predecessors, (415), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 10:35:51,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 523 transitions. [2024-12-02 10:35:51,259 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 523 transitions. Word has length 88 [2024-12-02 10:35:51,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:51,259 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 523 transitions. [2024-12-02 10:35:51,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-12-02 10:35:51,259 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 523 transitions. [2024-12-02 10:35:51,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 10:35:51,260 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:51,260 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:35:51,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 10:35:51,261 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:35:51,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:51,261 INFO L85 PathProgramCache]: Analyzing trace with hash 483143469, now seen corresponding path program 1 times [2024-12-02 10:35:51,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:51,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363043050] [2024-12-02 10:35:51,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:51,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 10:35:51,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [292720020] [2024-12-02 10:35:51,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:51,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:51,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:51,279 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:51,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 10:35:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:51,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 10:35:51,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:52,028 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-12-02 10:35:52,028 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:35:54,361 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-12-02 10:35:54,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:54,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363043050] [2024-12-02 10:35:54,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:35:54,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292720020] [2024-12-02 10:35:54,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292720020] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:35:54,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:35:54,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 22 [2024-12-02 10:35:54,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730943098] [2024-12-02 10:35:54,362 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:35:54,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 10:35:54,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:54,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 10:35:54,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:35:54,363 INFO L87 Difference]: Start difference. First operand 379 states and 523 transitions. Second operand has 23 states, 22 states have (on average 3.409090909090909) internal successors, (75), 23 states have internal predecessors, (75), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-12-02 10:36:00,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:00,345 INFO L93 Difference]: Finished difference Result 531 states and 731 transitions. [2024-12-02 10:36:00,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-12-02 10:36:00,346 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.409090909090909) internal successors, (75), 23 states have internal predecessors, (75), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 89 [2024-12-02 10:36:00,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:00,348 INFO L225 Difference]: With dead ends: 531 [2024-12-02 10:36:00,348 INFO L226 Difference]: Without dead ends: 417 [2024-12-02 10:36:00,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=566, Invalid=1786, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 10:36:00,349 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 319 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:00,350 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 267 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 10:36:00,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-12-02 10:36:00,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 375. [2024-12-02 10:36:00,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 307 states have (on average 1.3485342019543973) internal successors, (414), 322 states have internal predecessors, (414), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 10:36:00,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 514 transitions. [2024-12-02 10:36:00,408 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 514 transitions. Word has length 89 [2024-12-02 10:36:00,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:00,408 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 514 transitions. [2024-12-02 10:36:00,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.409090909090909) internal successors, (75), 23 states have internal predecessors, (75), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-12-02 10:36:00,408 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 514 transitions. [2024-12-02 10:36:00,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 10:36:00,409 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:00,410 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:00,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 10:36:00,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:00,610 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:36:00,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:00,611 INFO L85 PathProgramCache]: Analyzing trace with hash -2067183282, now seen corresponding path program 3 times [2024-12-02 10:36:00,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:00,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257645300] [2024-12-02 10:36:00,611 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 10:36:00,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:00,633 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-12-02 10:36:00,633 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 10:36:00,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [338445458] [2024-12-02 10:36:00,634 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 10:36:00,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:00,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:00,636 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:00,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 10:36:00,681 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-12-02 10:36:00,682 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:36:00,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 10:36:00,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:02,474 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 26 proven. 32 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-12-02 10:36:02,474 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:36:02,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:02,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257645300] [2024-12-02 10:36:02,673 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:36:02,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338445458] [2024-12-02 10:36:02,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338445458] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:36:02,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:36:02,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-12-02 10:36:02,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959018198] [2024-12-02 10:36:02,674 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 10:36:02,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:36:02,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:02,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:36:02,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=197, Unknown=1, NotChecked=0, Total=240 [2024-12-02 10:36:02,674 INFO L87 Difference]: Start difference. First operand 375 states and 514 transitions. Second operand has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 10 states have internal predecessors, (30), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-12-02 10:36:04,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 10:36:11,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 10:36:14,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:14,212 INFO L93 Difference]: Finished difference Result 404 states and 549 transitions. [2024-12-02 10:36:14,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 10:36:14,213 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 10 states have internal predecessors, (30), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 97 [2024-12-02 10:36:14,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:14,215 INFO L225 Difference]: With dead ends: 404 [2024-12-02 10:36:14,215 INFO L226 Difference]: Without dead ends: 400 [2024-12-02 10:36:14,215 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=130, Invalid=415, Unknown=7, NotChecked=0, Total=552 [2024-12-02 10:36:14,216 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 216 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 56 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:14,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 214 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 490 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2024-12-02 10:36:14,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-12-02 10:36:14,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 370. [2024-12-02 10:36:14,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 305 states have (on average 1.3114754098360655) internal successors, (400), 317 states have internal predecessors, (400), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 10:36:14,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 500 transitions. [2024-12-02 10:36:14,254 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 500 transitions. Word has length 97 [2024-12-02 10:36:14,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:14,255 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 500 transitions. [2024-12-02 10:36:14,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 10 states have internal predecessors, (30), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-12-02 10:36:14,255 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 500 transitions. [2024-12-02 10:36:14,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 10:36:14,256 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:14,256 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 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] [2024-12-02 10:36:14,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-12-02 10:36:14,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-12-02 10:36:14,456 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:36:14,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:14,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1222520212, now seen corresponding path program 1 times [2024-12-02 10:36:14,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:14,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033135548] [2024-12-02 10:36:14,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:14,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 10:36:14,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1547420857] [2024-12-02 10:36:14,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:14,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:14,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:14,484 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:14,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 10:36:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:14,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 10:36:14,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:14,890 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-12-02 10:36:14,890 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:36:15,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:15,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033135548] [2024-12-02 10:36:15,279 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:36:15,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547420857] [2024-12-02 10:36:15,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547420857] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:36:15,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:36:15,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-12-02 10:36:15,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093163359] [2024-12-02 10:36:15,279 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 10:36:15,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:36:15,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:15,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:36:15,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:36:15,280 INFO L87 Difference]: Start difference. First operand 370 states and 500 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-12-02 10:36:15,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:15,565 INFO L93 Difference]: Finished difference Result 375 states and 507 transitions. [2024-12-02 10:36:15,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:36:15,566 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 103 [2024-12-02 10:36:15,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:15,568 INFO L225 Difference]: With dead ends: 375 [2024-12-02 10:36:15,568 INFO L226 Difference]: Without dead ends: 374 [2024-12-02 10:36:15,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:36:15,570 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 29 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:15,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 193 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:36:15,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-12-02 10:36:15,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 371. [2024-12-02 10:36:15,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 306 states have (on average 1.3104575163398693) internal successors, (401), 318 states have internal predecessors, (401), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 10:36:15,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 501 transitions. [2024-12-02 10:36:15,640 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 501 transitions. Word has length 103 [2024-12-02 10:36:15,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:15,640 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 501 transitions. [2024-12-02 10:36:15,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-12-02 10:36:15,640 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 501 transitions. [2024-12-02 10:36:15,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 10:36:15,641 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:15,641 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 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] [2024-12-02 10:36:15,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-12-02 10:36:15,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:15,842 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:36:15,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:15,842 INFO L85 PathProgramCache]: Analyzing trace with hash 756579215, now seen corresponding path program 1 times [2024-12-02 10:36:15,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:15,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784990942] [2024-12-02 10:36:15,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:15,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 10:36:15,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [652153092] [2024-12-02 10:36:15,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:15,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:15,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:15,862 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:15,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-12-02 10:36:15,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:15,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 10:36:15,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:16,324 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-12-02 10:36:16,324 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:36:16,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:16,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784990942] [2024-12-02 10:36:16,868 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:36:16,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652153092] [2024-12-02 10:36:16,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652153092] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:36:16,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:36:16,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-12-02 10:36:16,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788689096] [2024-12-02 10:36:16,868 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 10:36:16,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:36:16,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:16,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:36:16,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:36:16,870 INFO L87 Difference]: Start difference. First operand 371 states and 501 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-12-02 10:36:17,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:17,441 INFO L93 Difference]: Finished difference Result 626 states and 863 transitions. [2024-12-02 10:36:17,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:36:17,442 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 104 [2024-12-02 10:36:17,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:17,443 INFO L225 Difference]: With dead ends: 626 [2024-12-02 10:36:17,443 INFO L226 Difference]: Without dead ends: 390 [2024-12-02 10:36:17,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:36:17,444 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 95 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:17,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 337 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:36:17,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-12-02 10:36:17,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 384. [2024-12-02 10:36:17,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 315 states have (on average 1.326984126984127) internal successors, (418), 327 states have internal predecessors, (418), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 10:36:17,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 526 transitions. [2024-12-02 10:36:17,488 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 526 transitions. Word has length 104 [2024-12-02 10:36:17,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:17,489 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 526 transitions. [2024-12-02 10:36:17,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-12-02 10:36:17,489 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 526 transitions. [2024-12-02 10:36:17,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 10:36:17,489 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:17,489 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 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] [2024-12-02 10:36:17,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-12-02 10:36:17,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:17,690 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:36:17,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:17,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1979119310, now seen corresponding path program 1 times [2024-12-02 10:36:17,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:17,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120548566] [2024-12-02 10:36:17,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:17,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:17,773 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-12-02 10:36:17,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:17,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120548566] [2024-12-02 10:36:17,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120548566] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:17,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:17,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:36:17,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558266756] [2024-12-02 10:36:17,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:17,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:36:17,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:17,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:36:17,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:17,774 INFO L87 Difference]: Start difference. First operand 384 states and 526 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 10:36:17,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:17,938 INFO L93 Difference]: Finished difference Result 384 states and 526 transitions. [2024-12-02 10:36:17,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:36:17,939 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 105 [2024-12-02 10:36:17,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:17,941 INFO L225 Difference]: With dead ends: 384 [2024-12-02 10:36:17,941 INFO L226 Difference]: Without dead ends: 383 [2024-12-02 10:36:17,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:36:17,941 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 40 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:17,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 140 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:36:17,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-12-02 10:36:18,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2024-12-02 10:36:18,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 315 states have (on average 1.3238095238095238) internal successors, (417), 326 states have internal predecessors, (417), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 10:36:18,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 525 transitions. [2024-12-02 10:36:18,012 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 525 transitions. Word has length 105 [2024-12-02 10:36:18,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:18,013 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 525 transitions. [2024-12-02 10:36:18,013 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 10:36:18,013 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 525 transitions. [2024-12-02 10:36:18,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 10:36:18,014 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:18,014 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:18,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 10:36:18,014 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:36:18,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:18,014 INFO L85 PathProgramCache]: Analyzing trace with hash 795608210, now seen corresponding path program 1 times [2024-12-02 10:36:18,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:18,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534698982] [2024-12-02 10:36:18,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:18,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:18,104 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-12-02 10:36:18,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:18,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534698982] [2024-12-02 10:36:18,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534698982] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:36:18,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15718222] [2024-12-02 10:36:18,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:18,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:18,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:18,107 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:18,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-12-02 10:36:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:18,165 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 10:36:18,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:18,217 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-12-02 10:36:18,217 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:36:18,348 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-12-02 10:36:18,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15718222] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:36:18,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:36:18,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-12-02 10:36:18,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263277832] [2024-12-02 10:36:18,348 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:36:18,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:36:18,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:18,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:36:18,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:36:18,349 INFO L87 Difference]: Start difference. First operand 383 states and 525 transitions. Second operand has 11 states, 10 states have (on average 7.5) internal successors, (75), 11 states have internal predecessors, (75), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-12-02 10:36:18,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:18,645 INFO L93 Difference]: Finished difference Result 681 states and 916 transitions. [2024-12-02 10:36:18,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:36:18,646 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.5) internal successors, (75), 11 states have internal predecessors, (75), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 107 [2024-12-02 10:36:18,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:18,648 INFO L225 Difference]: With dead ends: 681 [2024-12-02 10:36:18,648 INFO L226 Difference]: Without dead ends: 679 [2024-12-02 10:36:18,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:36:18,649 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 341 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:18,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 249 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:36:18,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-12-02 10:36:18,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 451. [2024-12-02 10:36:18,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 369 states have (on average 1.2953929539295392) internal successors, (478), 380 states have internal predecessors, (478), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-12-02 10:36:18,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 614 transitions. [2024-12-02 10:36:18,734 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 614 transitions. Word has length 107 [2024-12-02 10:36:18,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:18,734 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 614 transitions. [2024-12-02 10:36:18,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.5) internal successors, (75), 11 states have internal predecessors, (75), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-12-02 10:36:18,735 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 614 transitions. [2024-12-02 10:36:18,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 10:36:18,735 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:18,736 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 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, 1] [2024-12-02 10:36:18,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-12-02 10:36:18,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-12-02 10:36:18,936 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:36:18,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:18,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1223156593, now seen corresponding path program 1 times [2024-12-02 10:36:18,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:18,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744032421] [2024-12-02 10:36:18,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:18,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 10:36:18,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [429644671] [2024-12-02 10:36:18,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:18,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:18,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:18,957 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:18,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-12-02 10:36:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:19,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 10:36:19,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:19,491 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-12-02 10:36:19,491 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:36:20,382 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-12-02 10:36:20,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:20,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744032421] [2024-12-02 10:36:20,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:36:20,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429644671] [2024-12-02 10:36:20,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429644671] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:36:20,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:36:20,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2024-12-02 10:36:20,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083612045] [2024-12-02 10:36:20,383 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:36:20,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 10:36:20,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:20,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 10:36:20,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2024-12-02 10:36:20,384 INFO L87 Difference]: Start difference. First operand 451 states and 614 transitions. Second operand has 20 states, 19 states have (on average 4.684210526315789) internal successors, (89), 20 states have internal predecessors, (89), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-12-02 10:36:21,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:21,780 INFO L93 Difference]: Finished difference Result 495 states and 669 transitions. [2024-12-02 10:36:21,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 10:36:21,781 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.684210526315789) internal successors, (89), 20 states have internal predecessors, (89), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 106 [2024-12-02 10:36:21,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:21,782 INFO L225 Difference]: With dead ends: 495 [2024-12-02 10:36:21,782 INFO L226 Difference]: Without dead ends: 488 [2024-12-02 10:36:21,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 191 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=269, Invalid=787, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 10:36:21,783 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 106 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:21,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 311 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 10:36:21,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-12-02 10:36:21,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 448. [2024-12-02 10:36:21,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 366 states have (on average 1.284153005464481) internal successors, (470), 377 states have internal predecessors, (470), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-12-02 10:36:21,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 606 transitions. [2024-12-02 10:36:21,840 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 606 transitions. Word has length 106 [2024-12-02 10:36:21,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:21,840 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 606 transitions. [2024-12-02 10:36:21,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.684210526315789) internal successors, (89), 20 states have internal predecessors, (89), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-12-02 10:36:21,840 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 606 transitions. [2024-12-02 10:36:21,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 10:36:21,841 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:21,841 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1] [2024-12-02 10:36:21,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-12-02 10:36:22,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-12-02 10:36:22,046 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:36:22,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:22,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1302134726, now seen corresponding path program 2 times [2024-12-02 10:36:22,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:22,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867547015] [2024-12-02 10:36:22,046 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:36:22,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:22,070 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:36:22,071 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 10:36:22,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [318088638] [2024-12-02 10:36:22,072 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:36:22,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:22,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:22,074 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:22,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-12-02 10:36:22,133 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:36:22,133 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:36:22,135 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 10:36:22,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:22,288 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-12-02 10:36:22,288 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:36:22,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:22,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867547015] [2024-12-02 10:36:22,880 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:36:22,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318088638] [2024-12-02 10:36:22,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318088638] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:36:22,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:36:22,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-12-02 10:36:22,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163016792] [2024-12-02 10:36:22,881 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 10:36:22,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:36:22,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:22,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:36:22,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:36:22,882 INFO L87 Difference]: Start difference. First operand 448 states and 606 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:36:23,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:23,119 INFO L93 Difference]: Finished difference Result 507 states and 693 transitions. [2024-12-02 10:36:23,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:36:23,120 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 108 [2024-12-02 10:36:23,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:23,122 INFO L225 Difference]: With dead ends: 507 [2024-12-02 10:36:23,122 INFO L226 Difference]: Without dead ends: 505 [2024-12-02 10:36:23,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:36:23,123 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 71 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:23,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 231 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:36:23,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-12-02 10:36:23,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 446. [2024-12-02 10:36:23,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 366 states have (on average 1.215846994535519) internal successors, (445), 375 states have internal predecessors, (445), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-12-02 10:36:23,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 581 transitions. [2024-12-02 10:36:23,204 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 581 transitions. Word has length 108 [2024-12-02 10:36:23,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:23,205 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 581 transitions. [2024-12-02 10:36:23,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:36:23,205 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 581 transitions. [2024-12-02 10:36:23,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 10:36:23,206 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:23,206 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:23,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-12-02 10:36:23,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-12-02 10:36:23,406 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:36:23,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:23,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1711470763, now seen corresponding path program 2 times [2024-12-02 10:36:23,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:23,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845071777] [2024-12-02 10:36:23,407 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:36:23,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:23,429 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:36:23,429 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 10:36:23,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [348515437] [2024-12-02 10:36:23,430 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:36:23,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:23,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:23,432 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:23,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-12-02 10:36:23,487 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:36:23,488 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:36:23,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 10:36:23,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:24,129 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 6 proven. 54 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-12-02 10:36:24,129 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:36:24,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:24,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845071777] [2024-12-02 10:36:24,441 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:36:24,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348515437] [2024-12-02 10:36:24,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348515437] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:36:24,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:36:24,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-12-02 10:36:24,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357221707] [2024-12-02 10:36:24,442 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 10:36:24,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 10:36:24,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:24,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 10:36:24,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:36:24,443 INFO L87 Difference]: Start difference. First operand 446 states and 581 transitions. Second operand has 16 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-12-02 10:36:25,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:25,114 INFO L93 Difference]: Finished difference Result 486 states and 632 transitions. [2024-12-02 10:36:25,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 10:36:25,114 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 109 [2024-12-02 10:36:25,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:25,115 INFO L225 Difference]: With dead ends: 486 [2024-12-02 10:36:25,115 INFO L226 Difference]: Without dead ends: 485 [2024-12-02 10:36:25,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2024-12-02 10:36:25,116 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 114 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:25,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 258 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:36:25,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-12-02 10:36:25,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 470. [2024-12-02 10:36:25,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 386 states have (on average 1.2098445595854923) internal successors, (467), 395 states have internal predecessors, (467), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 10:36:25,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 611 transitions. [2024-12-02 10:36:25,190 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 611 transitions. Word has length 109 [2024-12-02 10:36:25,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:25,191 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 611 transitions. [2024-12-02 10:36:25,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-12-02 10:36:25,191 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 611 transitions. [2024-12-02 10:36:25,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 10:36:25,192 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:25,192 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:25,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-12-02 10:36:25,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-02 10:36:25,392 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:36:25,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:25,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1706036616, now seen corresponding path program 1 times [2024-12-02 10:36:25,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:25,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685952140] [2024-12-02 10:36:25,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:25,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:25,584 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-12-02 10:36:25,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:25,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685952140] [2024-12-02 10:36:25,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685952140] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:36:25,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238561032] [2024-12-02 10:36:25,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:25,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:25,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:25,587 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:25,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-12-02 10:36:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:25,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 10:36:25,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:25,709 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-12-02 10:36:25,709 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:36:25,825 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-12-02 10:36:25,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238561032] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:36:25,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:36:25,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 12 [2024-12-02 10:36:25,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065352291] [2024-12-02 10:36:25,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:36:25,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:36:25,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:25,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:36:25,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:36:25,827 INFO L87 Difference]: Start difference. First operand 470 states and 611 transitions. Second operand has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-12-02 10:36:26,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:26,635 INFO L93 Difference]: Finished difference Result 826 states and 1096 transitions. [2024-12-02 10:36:26,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 10:36:26,636 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 109 [2024-12-02 10:36:26,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:26,637 INFO L225 Difference]: With dead ends: 826 [2024-12-02 10:36:26,637 INFO L226 Difference]: Without dead ends: 699 [2024-12-02 10:36:26,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:36:26,638 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 162 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:26,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 468 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:36:26,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-12-02 10:36:26,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 466. [2024-12-02 10:36:26,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 382 states have (on average 1.2382198952879582) internal successors, (473), 391 states have internal predecessors, (473), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 10:36:26,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 617 transitions. [2024-12-02 10:36:26,697 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 617 transitions. Word has length 109 [2024-12-02 10:36:26,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:26,698 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 617 transitions. [2024-12-02 10:36:26,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-12-02 10:36:26,698 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 617 transitions. [2024-12-02 10:36:26,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 10:36:26,698 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:26,699 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:26,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-12-02 10:36:26,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-02 10:36:26,899 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:36:26,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:26,900 INFO L85 PathProgramCache]: Analyzing trace with hash -2130149537, now seen corresponding path program 3 times [2024-12-02 10:36:26,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:26,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961999345] [2024-12-02 10:36:26,900 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 10:36:26,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:26,933 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-12-02 10:36:26,933 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 10:36:26,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1880147345] [2024-12-02 10:36:26,935 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 10:36:26,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:26,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:26,937 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:26,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-12-02 10:36:26,991 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-02 10:36:26,991 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:36:26,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 10:36:26,994 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:59,447 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2024-12-02 10:36:59,447 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:37:03,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:37:03,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961999345] [2024-12-02 10:37:03,410 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:37:03,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880147345] [2024-12-02 10:37:03,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880147345] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:37:03,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:37:03,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-12-02 10:37:03,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258069173] [2024-12-02 10:37:03,410 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 10:37:03,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:37:03,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:37:03,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:37:03,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-12-02 10:37:03,411 INFO L87 Difference]: Start difference. First operand 466 states and 617 transitions. Second operand has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 10:37:07,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:37:11,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:37:15,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:37:19,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:37:23,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:37:35,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:37:36,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:37:38,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 10:37:38,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:37:38,611 INFO L93 Difference]: Finished difference Result 552 states and 730 transitions. [2024-12-02 10:37:38,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 10:37:38,611 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 131 [2024-12-02 10:37:38,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:37:38,613 INFO L225 Difference]: With dead ends: 552 [2024-12-02 10:37:38,613 INFO L226 Difference]: Without dead ends: 551 [2024-12-02 10:37:38,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 23.7s TimeCoverageRelationStatistics Valid=137, Invalid=368, Unknown=1, NotChecked=0, Total=506 [2024-12-02 10:37:38,613 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 49 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 15 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:37:38,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 155 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 348 Invalid, 6 Unknown, 0 Unchecked, 27.0s Time] [2024-12-02 10:37:38,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-12-02 10:37:38,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 495. [2024-12-02 10:37:38,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 409 states have (on average 1.2396088019559903) internal successors, (507), 418 states have internal predecessors, (507), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-12-02 10:37:38,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 655 transitions. [2024-12-02 10:37:38,675 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 655 transitions. Word has length 131 [2024-12-02 10:37:38,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:37:38,675 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 655 transitions. [2024-12-02 10:37:38,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 10:37:38,675 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 655 transitions. [2024-12-02 10:37:38,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 10:37:38,676 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:37:38,676 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:37:38,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-12-02 10:37:38,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:37:38,876 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:37:38,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:37:38,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1625697729, now seen corresponding path program 2 times [2024-12-02 10:37:38,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:37:38,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683221103] [2024-12-02 10:37:38,877 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:37:38,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:37:38,892 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:37:38,892 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 10:37:38,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2136794481] [2024-12-02 10:37:38,893 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:37:38,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:37:38,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:37:38,895 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:37:38,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-12-02 10:37:38,955 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:37:38,956 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:37:38,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 10:37:38,959 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:37:39,781 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-12-02 10:37:39,781 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:37:41,478 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-12-02 10:37:41,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:37:41,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683221103] [2024-12-02 10:37:41,478 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:37:41,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136794481] [2024-12-02 10:37:41,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136794481] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:37:41,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:37:41,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 24 [2024-12-02 10:37:41,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242125050] [2024-12-02 10:37:41,479 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:37:41,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 10:37:41,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:37:41,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 10:37:41,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=470, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:37:41,480 INFO L87 Difference]: Start difference. First operand 495 states and 655 transitions. Second operand has 25 states, 24 states have (on average 4.291666666666667) internal successors, (103), 25 states have internal predecessors, (103), 10 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (34), 10 states have call predecessors, (34), 10 states have call successors, (34) [2024-12-02 10:37:46,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:37:46,536 INFO L93 Difference]: Finished difference Result 584 states and 765 transitions. [2024-12-02 10:37:46,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-12-02 10:37:46,537 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.291666666666667) internal successors, (103), 25 states have internal predecessors, (103), 10 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (34), 10 states have call predecessors, (34), 10 states have call successors, (34) Word has length 133 [2024-12-02 10:37:46,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:37:46,539 INFO L225 Difference]: With dead ends: 584 [2024-12-02 10:37:46,539 INFO L226 Difference]: Without dead ends: 583 [2024-12-02 10:37:46,540 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 240 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=569, Invalid=1981, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 10:37:46,540 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 411 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 1995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:37:46,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 539 Invalid, 1995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1858 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-02 10:37:46,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-12-02 10:37:46,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 557. [2024-12-02 10:37:46,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 465 states have (on average 1.2236559139784946) internal successors, (569), 474 states have internal predecessors, (569), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 10:37:46,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 729 transitions. [2024-12-02 10:37:46,639 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 729 transitions. Word has length 133 [2024-12-02 10:37:46,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:37:46,639 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 729 transitions. [2024-12-02 10:37:46,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.291666666666667) internal successors, (103), 25 states have internal predecessors, (103), 10 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (34), 10 states have call predecessors, (34), 10 states have call successors, (34) [2024-12-02 10:37:46,639 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 729 transitions. [2024-12-02 10:37:46,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 10:37:46,640 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:37:46,640 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:37:46,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-12-02 10:37:46,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:37:46,840 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:37:46,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:37:46,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1742020636, now seen corresponding path program 1 times [2024-12-02 10:37:46,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:37:46,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825469727] [2024-12-02 10:37:46,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:37:46,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:37:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:37:47,114 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 10:37:47,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:37:47,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825469727] [2024-12-02 10:37:47,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825469727] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:37:47,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914515863] [2024-12-02 10:37:47,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:37:47,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:37:47,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:37:47,116 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:37:47,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-12-02 10:37:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:37:47,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 10:37:47,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:37:47,446 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 10:37:47,446 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:37:49,131 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 10:37:49,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914515863] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:37:49,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:37:49,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-12-02 10:37:49,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764054482] [2024-12-02 10:37:49,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:37:49,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 10:37:49,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:37:49,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 10:37:49,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=298, Unknown=0, NotChecked=0, Total=462 [2024-12-02 10:37:49,133 INFO L87 Difference]: Start difference. First operand 557 states and 729 transitions. Second operand has 22 states, 21 states have (on average 7.571428571428571) internal successors, (159), 22 states have internal predecessors, (159), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2024-12-02 10:37:50,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:37:50,389 INFO L93 Difference]: Finished difference Result 792 states and 1031 transitions. [2024-12-02 10:37:50,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 10:37:50,390 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.571428571428571) internal successors, (159), 22 states have internal predecessors, (159), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) Word has length 133 [2024-12-02 10:37:50,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:37:50,393 INFO L225 Difference]: With dead ends: 792 [2024-12-02 10:37:50,393 INFO L226 Difference]: Without dead ends: 791 [2024-12-02 10:37:50,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=397, Invalid=659, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 10:37:50,394 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 248 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:37:50,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 658 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:37:50,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2024-12-02 10:37:50,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 705. [2024-12-02 10:37:50,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 597 states have (on average 1.2177554438860971) internal successors, (727), 606 states have internal predecessors, (727), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-12-02 10:37:50,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 919 transitions. [2024-12-02 10:37:50,493 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 919 transitions. Word has length 133 [2024-12-02 10:37:50,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:37:50,493 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 919 transitions. [2024-12-02 10:37:50,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.571428571428571) internal successors, (159), 22 states have internal predecessors, (159), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2024-12-02 10:37:50,493 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 919 transitions. [2024-12-02 10:37:50,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 10:37:50,494 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:37:50,494 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:37:50,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-12-02 10:37:50,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-12-02 10:37:50,694 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:37:50,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:37:50,695 INFO L85 PathProgramCache]: Analyzing trace with hash 955416710, now seen corresponding path program 4 times [2024-12-02 10:37:50,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:37:50,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975747215] [2024-12-02 10:37:50,695 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 10:37:50,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:37:50,717 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 10:37:50,717 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 10:37:50,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1813156698] [2024-12-02 10:37:50,718 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 10:37:50,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:37:50,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:37:50,720 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:37:50,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-12-02 10:37:50,778 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 10:37:50,778 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:37:50,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 10:37:50,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:37:51,586 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 3 proven. 47 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-12-02 10:37:51,587 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:37:51,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:37:51,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975747215] [2024-12-02 10:37:51,892 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:37:51,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813156698] [2024-12-02 10:37:51,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813156698] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:37:51,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:37:51,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-12-02 10:37:51,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596229320] [2024-12-02 10:37:51,892 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 10:37:51,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 10:37:51,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:37:51,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 10:37:51,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:37:51,893 INFO L87 Difference]: Start difference. First operand 705 states and 919 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-12-02 10:37:52,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:37:52,569 INFO L93 Difference]: Finished difference Result 729 states and 949 transitions. [2024-12-02 10:37:52,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 10:37:52,570 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 135 [2024-12-02 10:37:52,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:37:52,572 INFO L225 Difference]: With dead ends: 729 [2024-12-02 10:37:52,572 INFO L226 Difference]: Without dead ends: 728 [2024-12-02 10:37:52,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2024-12-02 10:37:52,573 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 93 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:37:52,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 257 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:37:52,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2024-12-02 10:37:52,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 719. [2024-12-02 10:37:52,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 609 states have (on average 1.2118226600985222) internal successors, (738), 618 states have internal predecessors, (738), 98 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-12-02 10:37:52,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 934 transitions. [2024-12-02 10:37:52,681 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 934 transitions. Word has length 135 [2024-12-02 10:37:52,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:37:52,681 INFO L471 AbstractCegarLoop]: Abstraction has 719 states and 934 transitions. [2024-12-02 10:37:52,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-12-02 10:37:52,681 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 934 transitions. [2024-12-02 10:37:52,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 10:37:52,682 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:37:52,682 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:37:52,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-12-02 10:37:52,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:37:52,883 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:37:52,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:37:52,883 INFO L85 PathProgramCache]: Analyzing trace with hash -967540440, now seen corresponding path program 3 times [2024-12-02 10:37:52,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:37:52,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472664703] [2024-12-02 10:37:52,883 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 10:37:52,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:37:52,913 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-12-02 10:37:52,914 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 10:37:52,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [412926402] [2024-12-02 10:37:52,915 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 10:37:52,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:37:52,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:37:52,917 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:37:52,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-12-02 10:37:52,994 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-12-02 10:37:52,994 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:37:52,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-12-02 10:37:52,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:38:10,490 WARN L286 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:38:37,611 WARN L286 SmtUtils]: Spent 10.88s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:39:57,822 WARN L286 SmtUtils]: Spent 6.47s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:40:11,665 WARN L286 SmtUtils]: Spent 13.57s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:40:38,510 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 92 proven. 47 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2024-12-02 10:40:38,511 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:40:53,809 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2024-12-02 10:40:53,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:40:53,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472664703] [2024-12-02 10:40:53,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:40:53,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412926402] [2024-12-02 10:40:53,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412926402] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:40:53,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:40:53,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [20] total 29 [2024-12-02 10:40:53,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472181245] [2024-12-02 10:40:53,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:40:53,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:40:53,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:40:53,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:40:53,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=720, Unknown=0, NotChecked=0, Total=870 [2024-12-02 10:40:53,810 INFO L87 Difference]: Start difference. First operand 719 states and 934 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 10:41:00,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:41:00,770 INFO L93 Difference]: Finished difference Result 731 states and 952 transitions. [2024-12-02 10:41:00,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 10:41:00,770 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 137 [2024-12-02 10:41:00,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:41:00,774 INFO L225 Difference]: With dead ends: 731 [2024-12-02 10:41:00,774 INFO L226 Difference]: Without dead ends: 730 [2024-12-02 10:41:00,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 45.1s TimeCoverageRelationStatistics Valid=249, Invalid=1083, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 10:41:00,775 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 104 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:41:00,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 137 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 10:41:00,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2024-12-02 10:41:00,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 654. [2024-12-02 10:41:00,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 549 states have (on average 1.1912568306010929) internal successors, (654), 557 states have internal predecessors, (654), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 10:41:00,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 842 transitions. [2024-12-02 10:41:00,888 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 842 transitions. Word has length 137 [2024-12-02 10:41:00,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:41:00,888 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 842 transitions. [2024-12-02 10:41:00,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 10:41:00,888 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 842 transitions. [2024-12-02 10:41:00,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 10:41:00,889 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:41:00,889 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 10:41:00,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-12-02 10:41:01,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-12-02 10:41:01,090 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:41:01,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:41:01,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1614917395, now seen corresponding path program 1 times [2024-12-02 10:41:01,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:41:01,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879904997] [2024-12-02 10:41:01,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:01,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:41:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 10:41:01,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [886710690] [2024-12-02 10:41:01,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:01,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:41:01,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:41:01,112 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:41:01,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-12-02 10:41:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:01,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 10:41:01,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:41:01,671 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 42 proven. 54 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-12-02 10:41:01,671 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:41:01,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:41:01,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879904997] [2024-12-02 10:41:01,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:41:01,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886710690] [2024-12-02 10:41:01,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886710690] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:41:01,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:41:01,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-12-02 10:41:01,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166214998] [2024-12-02 10:41:01,932 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 10:41:01,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 10:41:01,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:41:01,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 10:41:01,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2024-12-02 10:41:01,933 INFO L87 Difference]: Start difference. First operand 654 states and 842 transitions. Second operand has 17 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 7 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 7 states have call successors, (18) [2024-12-02 10:41:02,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:41:02,725 INFO L93 Difference]: Finished difference Result 767 states and 983 transitions. [2024-12-02 10:41:02,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 10:41:02,726 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 7 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 7 states have call successors, (18) Word has length 147 [2024-12-02 10:41:02,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:41:02,727 INFO L225 Difference]: With dead ends: 767 [2024-12-02 10:41:02,727 INFO L226 Difference]: Without dead ends: 558 [2024-12-02 10:41:02,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=164, Invalid=648, Unknown=0, NotChecked=0, Total=812 [2024-12-02 10:41:02,728 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 46 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:41:02,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 382 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:41:02,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-12-02 10:41:02,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 555. [2024-12-02 10:41:02,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 460 states have (on average 1.184782608695652) internal successors, (545), 468 states have internal predecessors, (545), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-12-02 10:41:02,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 713 transitions. [2024-12-02 10:41:02,836 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 713 transitions. Word has length 147 [2024-12-02 10:41:02,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:41:02,836 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 713 transitions. [2024-12-02 10:41:02,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 7 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 7 states have call successors, (18) [2024-12-02 10:41:02,836 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 713 transitions. [2024-12-02 10:41:02,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 10:41:02,837 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:41:02,837 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:41:02,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-12-02 10:41:03,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-12-02 10:41:03,037 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:41:03,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:41:03,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1477168430, now seen corresponding path program 1 times [2024-12-02 10:41:03,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:41:03,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378082176] [2024-12-02 10:41:03,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:03,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:41:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 10:41:03,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [165320275] [2024-12-02 10:41:03,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:03,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:41:03,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:41:03,056 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:41:03,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-12-02 10:41:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:03,134 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-12-02 10:41:03,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:41:04,460 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 42 proven. 60 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2024-12-02 10:41:04,460 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:41:06,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:41:06,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378082176] [2024-12-02 10:41:06,858 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:41:06,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165320275] [2024-12-02 10:41:06,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165320275] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:41:06,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:41:06,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2024-12-02 10:41:06,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937610650] [2024-12-02 10:41:06,858 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 10:41:06,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 10:41:06,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:41:06,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 10:41:06,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=835, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 10:41:06,859 INFO L87 Difference]: Start difference. First operand 555 states and 713 transitions. Second operand has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 states have internal predecessors, (70), 8 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2024-12-02 10:41:08,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:41:08,566 INFO L93 Difference]: Finished difference Result 561 states and 719 transitions. [2024-12-02 10:41:08,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 10:41:08,566 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 states have internal predecessors, (70), 8 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) Word has length 148 [2024-12-02 10:41:08,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:41:08,568 INFO L225 Difference]: With dead ends: 561 [2024-12-02 10:41:08,568 INFO L226 Difference]: Without dead ends: 560 [2024-12-02 10:41:08,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 167 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=445, Invalid=1811, Unknown=0, NotChecked=0, Total=2256 [2024-12-02 10:41:08,568 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 124 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:41:08,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 432 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 10:41:08,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-12-02 10:41:08,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 556. [2024-12-02 10:41:08,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 461 states have (on average 1.1843817787418656) internal successors, (546), 469 states have internal predecessors, (546), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-12-02 10:41:08,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 714 transitions. [2024-12-02 10:41:08,666 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 714 transitions. Word has length 148 [2024-12-02 10:41:08,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:41:08,666 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 714 transitions. [2024-12-02 10:41:08,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 states have internal predecessors, (70), 8 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2024-12-02 10:41:08,666 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 714 transitions. [2024-12-02 10:41:08,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 10:41:08,667 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:41:08,667 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:41:08,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-12-02 10:41:08,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-12-02 10:41:08,867 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:41:08,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:41:08,868 INFO L85 PathProgramCache]: Analyzing trace with hash -2075309744, now seen corresponding path program 1 times [2024-12-02 10:41:08,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:41:08,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151854959] [2024-12-02 10:41:08,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:08,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:41:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 10:41:08,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1231630918] [2024-12-02 10:41:08,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:08,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:41:08,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:41:08,886 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:41:08,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-12-02 10:41:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:08,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-12-02 10:41:08,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:41:10,184 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2024-12-02 10:41:10,184 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:41:52,703 WARN L286 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:42:02,720 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-12-02 10:42:02,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:02,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151854959] [2024-12-02 10:42:02,720 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:42:02,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231630918] [2024-12-02 10:42:02,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231630918] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:42:02,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:42:02,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 28 [2024-12-02 10:42:02,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802068534] [2024-12-02 10:42:02,720 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:42:02,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 10:42:02,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:02,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 10:42:02,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=615, Unknown=0, NotChecked=0, Total=812 [2024-12-02 10:42:02,721 INFO L87 Difference]: Start difference. First operand 556 states and 714 transitions. Second operand has 29 states, 28 states have (on average 4.535714285714286) internal successors, (127), 29 states have internal predecessors, (127), 14 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) [2024-12-02 10:43:29,713 WARN L286 SmtUtils]: Spent 1.44m on a formula simplification. DAG size of input: 186 DAG size of output: 181 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:43:43,737 WARN L286 SmtUtils]: Spent 12.15s on a formula simplification. DAG size of input: 99 DAG size of output: 88 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:43:47,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:44:32,900 WARN L286 SmtUtils]: Spent 43.31s on a formula simplification. DAG size of input: 175 DAG size of output: 171 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:44:50,742 WARN L286 SmtUtils]: Spent 17.05s on a formula simplification. DAG size of input: 105 DAG size of output: 94 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:44:53,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:44:58,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:45:02,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:45:06,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:45:10,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.75s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:45:12,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:46:05,296 WARN L286 SmtUtils]: Spent 48.08s on a formula simplification. DAG size of input: 179 DAG size of output: 174 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:46:09,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:46:32,271 WARN L286 SmtUtils]: Spent 10.87s on a formula simplification that was a NOOP. DAG size: 173 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:46:37,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.50s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:46:39,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:46:49,592 WARN L286 SmtUtils]: Spent 7.74s on a formula simplification that was a NOOP. DAG size: 96 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:46:51,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:47:03,018 WARN L286 SmtUtils]: Spent 6.11s on a formula simplification that was a NOOP. DAG size: 92 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:47:07,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:47:11,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:47:16,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:47:21,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:47:26,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 10:47:27,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:47:27,426 INFO L93 Difference]: Finished difference Result 656 states and 843 transitions. [2024-12-02 10:47:27,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-12-02 10:47:27,426 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 4.535714285714286) internal successors, (127), 29 states have internal predecessors, (127), 14 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) Word has length 150 [2024-12-02 10:47:27,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:47:27,428 INFO L225 Difference]: With dead ends: 656 [2024-12-02 10:47:27,428 INFO L226 Difference]: Without dead ends: 640 [2024-12-02 10:47:27,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1314 ImplicationChecksByTransitivity, 254.4s TimeCoverageRelationStatistics Valid=1046, Invalid=3646, Unknown=0, NotChecked=0, Total=4692 [2024-12-02 10:47:27,430 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 467 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 154 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 1606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:47:27,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 397 Invalid, 1606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1444 Invalid, 8 Unknown, 0 Unchecked, 73.2s Time] [2024-12-02 10:47:27,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2024-12-02 10:47:27,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 597. [2024-12-02 10:47:27,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 496 states have (on average 1.1774193548387097) internal successors, (584), 504 states have internal predecessors, (584), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 10:47:27,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 764 transitions. [2024-12-02 10:47:27,612 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 764 transitions. Word has length 150 [2024-12-02 10:47:27,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:47:27,612 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 764 transitions. [2024-12-02 10:47:27,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 4.535714285714286) internal successors, (127), 29 states have internal predecessors, (127), 14 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) [2024-12-02 10:47:27,612 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 764 transitions. [2024-12-02 10:47:27,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 10:47:27,613 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:47:27,614 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 10:47:27,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-12-02 10:47:27,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-12-02 10:47:27,814 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:47:27,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:47:27,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1721134809, now seen corresponding path program 2 times [2024-12-02 10:47:27,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:47:27,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211409546] [2024-12-02 10:47:27,815 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:47:27,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:47:27,838 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:47:27,838 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 10:47:27,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1651870236] [2024-12-02 10:47:27,839 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:47:27,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:47:27,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:47:27,842 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:47:27,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-12-02 10:47:27,915 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:47:27,915 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:47:27,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 10:47:27,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:47:28,769 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-12-02 10:47:28,769 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:47:34,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:47:34,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211409546] [2024-12-02 10:47:34,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:47:34,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651870236] [2024-12-02 10:47:34,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651870236] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:47:34,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:47:34,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-12-02 10:47:34,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99297188] [2024-12-02 10:47:34,780 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 10:47:34,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 10:47:34,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:47:34,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 10:47:34,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:47:34,781 INFO L87 Difference]: Start difference. First operand 597 states and 764 transitions. Second operand has 15 states, 14 states have (on average 4.785714285714286) internal successors, (67), 15 states have internal predecessors, (67), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-12-02 10:47:35,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:47:35,748 INFO L93 Difference]: Finished difference Result 602 states and 770 transitions. [2024-12-02 10:47:35,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 10:47:35,749 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.785714285714286) internal successors, (67), 15 states have internal predecessors, (67), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 151 [2024-12-02 10:47:35,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:47:35,752 INFO L225 Difference]: With dead ends: 602 [2024-12-02 10:47:35,752 INFO L226 Difference]: Without dead ends: 601 [2024-12-02 10:47:35,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2024-12-02 10:47:35,753 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 22 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:47:35,753 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 445 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:47:35,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-12-02 10:47:35,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 598. [2024-12-02 10:47:35,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 497 states have (on average 1.1770623742454729) internal successors, (585), 505 states have internal predecessors, (585), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 10:47:35,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 765 transitions. [2024-12-02 10:47:35,929 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 765 transitions. Word has length 151 [2024-12-02 10:47:35,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:47:35,930 INFO L471 AbstractCegarLoop]: Abstraction has 598 states and 765 transitions. [2024-12-02 10:47:35,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.785714285714286) internal successors, (67), 15 states have internal predecessors, (67), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-12-02 10:47:35,930 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 765 transitions. [2024-12-02 10:47:35,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 10:47:35,930 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:47:35,930 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:47:35,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-12-02 10:47:36,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:47:36,131 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:47:36,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:47:36,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1815571404, now seen corresponding path program 2 times [2024-12-02 10:47:36,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:47:36,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853497711] [2024-12-02 10:47:36,132 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:47:36,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:47:36,148 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:47:36,148 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 10:47:36,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [406762393] [2024-12-02 10:47:36,149 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:47:36,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:47:36,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:47:36,151 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:47:36,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-12-02 10:47:36,231 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:47:36,231 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:47:36,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 10:47:36,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:47:36,646 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-12-02 10:47:36,646 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:47:45,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:47:45,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853497711] [2024-12-02 10:47:45,289 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:47:45,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406762393] [2024-12-02 10:47:45,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406762393] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:47:45,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:47:45,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-12-02 10:47:45,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109220382] [2024-12-02 10:47:45,289 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 10:47:45,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:47:45,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:47:45,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:47:45,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=119, Unknown=2, NotChecked=0, Total=156 [2024-12-02 10:47:45,290 INFO L87 Difference]: Start difference. First operand 598 states and 765 transitions. Second operand has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-12-02 10:47:45,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:47:45,976 INFO L93 Difference]: Finished difference Result 602 states and 769 transitions. [2024-12-02 10:47:45,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:47:45,976 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 152 [2024-12-02 10:47:45,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:47:45,978 INFO L225 Difference]: With dead ends: 602 [2024-12-02 10:47:45,978 INFO L226 Difference]: Without dead ends: 601 [2024-12-02 10:47:45,978 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 169 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=53, Invalid=185, Unknown=2, NotChecked=0, Total=240 [2024-12-02 10:47:45,978 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 26 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:47:45,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 330 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:47:45,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-12-02 10:47:46,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 599. [2024-12-02 10:47:46,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 498 states have (on average 1.176706827309237) internal successors, (586), 506 states have internal predecessors, (586), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 10:47:46,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 766 transitions. [2024-12-02 10:47:46,163 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 766 transitions. Word has length 152 [2024-12-02 10:47:46,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:47:46,163 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 766 transitions. [2024-12-02 10:47:46,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-12-02 10:47:46,163 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 766 transitions. [2024-12-02 10:47:46,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 10:47:46,164 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:47:46,164 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 10:47:46,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-12-02 10:47:46,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-12-02 10:47:46,365 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:47:46,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:47:46,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1007393066, now seen corresponding path program 2 times [2024-12-02 10:47:46,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:47:46,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321370196] [2024-12-02 10:47:46,366 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:47:46,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:47:46,392 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:47:46,392 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 10:47:46,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [294972027] [2024-12-02 10:47:46,393 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:47:46,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:47:46,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:47:46,395 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:47:46,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-12-02 10:47:46,457 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:47:46,457 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:47:46,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-12-02 10:47:46,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:47:48,056 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 42 proven. 64 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2024-12-02 10:47:48,056 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:48:00,214 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 42 proven. 58 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-12-02 10:48:00,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:48:00,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321370196] [2024-12-02 10:48:00,214 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:48:00,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294972027] [2024-12-02 10:48:00,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294972027] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:48:00,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:48:00,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19] total 39 [2024-12-02 10:48:00,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255326660] [2024-12-02 10:48:00,215 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:48:00,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-12-02 10:48:00,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:48:00,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-12-02 10:48:00,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 10:48:00,216 INFO L87 Difference]: Start difference. First operand 599 states and 766 transitions. Second operand has 40 states, 39 states have (on average 3.58974358974359) internal successors, (140), 38 states have internal predecessors, (140), 14 states have call successors, (35), 1 states have call predecessors, (35), 3 states have return successors, (36), 16 states have call predecessors, (36), 14 states have call successors, (36) [2024-12-02 10:48:10,133 WARN L286 SmtUtils]: Spent 7.50s on a formula simplification. DAG size of input: 121 DAG size of output: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:48:30,405 WARN L286 SmtUtils]: Spent 7.82s on a formula simplification. DAG size of input: 119 DAG size of output: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:48:39,618 WARN L286 SmtUtils]: Spent 8.39s on a formula simplification. DAG size of input: 119 DAG size of output: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:48:51,788 WARN L286 SmtUtils]: Spent 5.98s on a formula simplification. DAG size of input: 80 DAG size of output: 80 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:49:17,859 WARN L286 SmtUtils]: Spent 8.96s on a formula simplification. DAG size of input: 121 DAG size of output: 114 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:49:30,098 WARN L286 SmtUtils]: Spent 10.74s on a formula simplification. DAG size of input: 123 DAG size of output: 116 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:49:39,808 WARN L286 SmtUtils]: Spent 9.09s on a formula simplification. DAG size of input: 120 DAG size of output: 113 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:49:47,422 WARN L286 SmtUtils]: Spent 5.88s on a formula simplification. DAG size of input: 87 DAG size of output: 87 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:49:53,053 WARN L286 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 91 DAG size of output: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:50:01,074 WARN L286 SmtUtils]: Spent 7.35s on a formula simplification. DAG size of input: 93 DAG size of output: 93 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:50:18,371 WARN L286 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 91 DAG size of output: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:50:25,421 WARN L286 SmtUtils]: Spent 6.52s on a formula simplification. DAG size of input: 93 DAG size of output: 93 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:50:25,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:50:25,753 INFO L93 Difference]: Finished difference Result 636 states and 817 transitions. [2024-12-02 10:50:25,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-12-02 10:50:25,753 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 3.58974358974359) internal successors, (140), 38 states have internal predecessors, (140), 14 states have call successors, (35), 1 states have call predecessors, (35), 3 states have return successors, (36), 16 states have call predecessors, (36), 14 states have call successors, (36) Word has length 154 [2024-12-02 10:50:25,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:50:25,756 INFO L225 Difference]: With dead ends: 636 [2024-12-02 10:50:25,756 INFO L226 Difference]: Without dead ends: 584 [2024-12-02 10:50:25,758 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2011 ImplicationChecksByTransitivity, 134.8s TimeCoverageRelationStatistics Valid=1790, Invalid=6399, Unknown=1, NotChecked=0, Total=8190 [2024-12-02 10:50:25,758 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 459 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 2254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:50:25,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 447 Invalid, 2254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 2080 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2024-12-02 10:50:25,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2024-12-02 10:50:25,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 497. [2024-12-02 10:50:25,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 411 states have (on average 1.1995133819951338) internal successors, (493), 418 states have internal predecessors, (493), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-12-02 10:50:25,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 645 transitions. [2024-12-02 10:50:25,952 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 645 transitions. Word has length 154 [2024-12-02 10:50:25,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:50:25,952 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 645 transitions. [2024-12-02 10:50:25,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 3.58974358974359) internal successors, (140), 38 states have internal predecessors, (140), 14 states have call successors, (35), 1 states have call predecessors, (35), 3 states have return successors, (36), 16 states have call predecessors, (36), 14 states have call successors, (36) [2024-12-02 10:50:25,952 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 645 transitions. [2024-12-02 10:50:25,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 10:50:25,953 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:50:25,953 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:50:25,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-12-02 10:50:26,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:50:26,153 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:50:26,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:50:26,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1430429712, now seen corresponding path program 5 times [2024-12-02 10:50:26,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:50:26,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993733280] [2024-12-02 10:50:26,154 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 10:50:26,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:50:26,186 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-12-02 10:50:26,186 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 10:50:26,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [930612855] [2024-12-02 10:50:26,187 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 10:50:26,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:50:26,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:50:26,189 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:50:26,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-12-02 10:50:26,268 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-12-02 10:50:26,268 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:50:26,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 10:50:26,272 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:50:27,593 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 12 proven. 109 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2024-12-02 10:50:27,593 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:50:27,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:50:27,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993733280] [2024-12-02 10:50:27,953 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:50:27,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930612855] [2024-12-02 10:50:27,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930612855] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:50:27,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:50:27,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2024-12-02 10:50:27,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98313461] [2024-12-02 10:50:27,953 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 10:50:27,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 10:50:27,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:50:27,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 10:50:27,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:50:27,954 INFO L87 Difference]: Start difference. First operand 497 states and 645 transitions. Second operand has 20 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 8 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-12-02 10:50:29,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:50:29,107 INFO L93 Difference]: Finished difference Result 562 states and 728 transitions. [2024-12-02 10:50:29,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 10:50:29,107 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 8 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) Word has length 157 [2024-12-02 10:50:29,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:50:29,108 INFO L225 Difference]: With dead ends: 562 [2024-12-02 10:50:29,109 INFO L226 Difference]: Without dead ends: 560 [2024-12-02 10:50:29,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=123, Invalid=527, Unknown=0, NotChecked=0, Total=650 [2024-12-02 10:50:29,109 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 88 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:50:29,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 324 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1346 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 10:50:29,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-12-02 10:50:29,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 543. [2024-12-02 10:50:29,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 451 states have (on average 1.1951219512195121) internal successors, (539), 458 states have internal predecessors, (539), 82 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 10:50:29,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 703 transitions. [2024-12-02 10:50:29,294 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 703 transitions. Word has length 157 [2024-12-02 10:50:29,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:50:29,294 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 703 transitions. [2024-12-02 10:50:29,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 8 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-12-02 10:50:29,294 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 703 transitions. [2024-12-02 10:50:29,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-12-02 10:50:29,295 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:50:29,295 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:50:29,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-12-02 10:50:29,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:50:29,495 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:50:29,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:50:29,496 INFO L85 PathProgramCache]: Analyzing trace with hash 880374135, now seen corresponding path program 2 times [2024-12-02 10:50:29,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:50:29,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204356882] [2024-12-02 10:50:29,496 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:50:29,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:50:29,507 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:50:29,507 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:50:29,800 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 22 proven. 58 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-12-02 10:50:29,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:50:29,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204356882] [2024-12-02 10:50:29,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204356882] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:50:29,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110511155] [2024-12-02 10:50:29,801 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:50:29,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:50:29,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:50:29,802 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:50:29,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-12-02 10:50:29,859 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:50:29,859 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:50:29,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 10:50:29,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:50:29,955 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 48 proven. 32 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-12-02 10:50:29,955 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:50:30,160 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 48 proven. 32 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-12-02 10:50:30,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110511155] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:50:30,161 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:50:30,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 9 [2024-12-02 10:50:30,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086730095] [2024-12-02 10:50:30,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:50:30,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:50:30,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:50:30,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:50:30,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:50:30,162 INFO L87 Difference]: Start difference. First operand 543 states and 703 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 8 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 8 states have call predecessors, (28), 8 states have call successors, (28) [2024-12-02 10:50:30,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:50:30,545 INFO L93 Difference]: Finished difference Result 601 states and 778 transitions. [2024-12-02 10:50:30,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:50:30,546 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 8 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 8 states have call predecessors, (28), 8 states have call successors, (28) Word has length 169 [2024-12-02 10:50:30,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:50:30,547 INFO L225 Difference]: With dead ends: 601 [2024-12-02 10:50:30,547 INFO L226 Difference]: Without dead ends: 597 [2024-12-02 10:50:30,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 332 SyntacticMatches, 7 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:50:30,547 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 40 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:50:30,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 289 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:50:30,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2024-12-02 10:50:30,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 596. [2024-12-02 10:50:30,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 494 states have (on average 1.1842105263157894) internal successors, (585), 501 states have internal predecessors, (585), 92 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 10:50:30,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 769 transitions. [2024-12-02 10:50:30,799 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 769 transitions. Word has length 169 [2024-12-02 10:50:30,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:50:30,799 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 769 transitions. [2024-12-02 10:50:30,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 8 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 8 states have call predecessors, (28), 8 states have call successors, (28) [2024-12-02 10:50:30,799 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 769 transitions. [2024-12-02 10:50:30,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-12-02 10:50:30,800 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:50:30,800 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:50:30,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-12-02 10:50:31,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:50:31,001 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-12-02 10:50:31,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:50:31,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1440619546, now seen corresponding path program 6 times [2024-12-02 10:50:31,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:50:31,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113861440] [2024-12-02 10:50:31,001 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 10:50:31,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:50:31,029 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2024-12-02 10:50:31,029 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 10:50:31,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1391050677] [2024-12-02 10:50:31,030 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 10:50:31,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:50:31,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:50:31,032 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:50:31,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65b5f4a-e2d5-43fe-96fa-2e5ba6d6274f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-12-02 10:50:31,140 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-12-02 10:50:31,140 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:50:31,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 10:50:31,143 INFO L279 TraceCheckSpWp]: Computing forward predicates...