/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-14.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 19:12:22,350 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 19:12:22,383 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 19:12:22,386 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 19:12:22,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 19:12:22,399 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 19:12:22,399 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 19:12:22,400 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 19:12:22,400 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 19:12:22,400 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 19:12:22,400 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 19:12:22,401 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 19:12:22,401 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 19:12:22,401 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 19:12:22,401 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 19:12:22,402 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 19:12:22,402 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 19:12:22,402 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 19:12:22,402 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 19:12:22,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 19:12:22,403 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 19:12:22,403 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 19:12:22,403 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 19:12:22,403 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 19:12:22,403 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 19:12:22,404 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 19:12:22,404 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 19:12:22,404 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 19:12:22,404 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 19:12:22,404 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 19:12:22,404 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 19:12:22,404 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 19:12:22,405 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 19:12:22,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 19:12:22,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 19:12:22,405 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 19:12:22,405 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 19:12:22,405 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 19:12:22,405 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 19:12:22,405 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 19:12:22,405 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 19:12:22,406 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 19:12:22,406 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 19:12:22,406 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 19:12:22,406 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 19:12:22,406 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 19:12:22,406 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 19:12:22,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 19:12:22,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 19:12:22,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 19:12:22,605 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 19:12:22,606 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 19:12:22,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-14.i [2023-12-24 19:12:23,551 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 19:12:23,697 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 19:12:23,697 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-14.i [2023-12-24 19:12:23,706 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6972de6a/2e604ea76b4349c18f3290c9825cf027/FLAG90c7e7367 [2023-12-24 19:12:24,118 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6972de6a/2e604ea76b4349c18f3290c9825cf027 [2023-12-24 19:12:24,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 19:12:24,121 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 19:12:24,122 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 19:12:24,122 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 19:12:24,125 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 19:12:24,125 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 07:12:24" (1/1) ... [2023-12-24 19:12:24,126 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2081b827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:12:24, skipping insertion in model container [2023-12-24 19:12:24,126 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 07:12:24" (1/1) ... [2023-12-24 19:12:24,154 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 19:12:24,257 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-14.i[917,930] [2023-12-24 19:12:24,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 19:12:24,337 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 19:12:24,344 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-14.i[917,930] [2023-12-24 19:12:24,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 19:12:24,388 INFO L206 MainTranslator]: Completed translation [2023-12-24 19:12:24,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:12:24 WrapperNode [2023-12-24 19:12:24,389 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 19:12:24,390 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 19:12:24,390 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 19:12:24,390 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 19:12:24,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:12:24" (1/1) ... [2023-12-24 19:12:24,415 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:12:24" (1/1) ... [2023-12-24 19:12:24,444 INFO L138 Inliner]: procedures = 39, calls = 183, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 572 [2023-12-24 19:12:24,444 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 19:12:24,445 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 19:12:24,445 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 19:12:24,445 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 19:12:24,456 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:12:24" (1/1) ... [2023-12-24 19:12:24,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:12:24" (1/1) ... [2023-12-24 19:12:24,462 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:12:24" (1/1) ... [2023-12-24 19:12:24,475 INFO L175 MemorySlicer]: Split 150 memory accesses to 2 slices as follows [2, 148]. 99 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 16]. The 20 writes are split as follows [0, 20]. [2023-12-24 19:12:24,475 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:12:24" (1/1) ... [2023-12-24 19:12:24,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:12:24" (1/1) ... [2023-12-24 19:12:24,495 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:12:24" (1/1) ... [2023-12-24 19:12:24,497 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:12:24" (1/1) ... [2023-12-24 19:12:24,500 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:12:24" (1/1) ... [2023-12-24 19:12:24,502 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:12:24" (1/1) ... [2023-12-24 19:12:24,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 19:12:24,507 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 19:12:24,507 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 19:12:24,507 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 19:12:24,507 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:12:24" (1/1) ... [2023-12-24 19:12:24,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 19:12:24,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 19:12:24,563 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-24 19:12:24,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-24 19:12:24,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 19:12:24,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2023-12-24 19:12:24,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2023-12-24 19:12:24,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2023-12-24 19:12:24,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2023-12-24 19:12:24,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-24 19:12:24,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-24 19:12:24,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2023-12-24 19:12:24,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2023-12-24 19:12:24,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 19:12:24,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-24 19:12:24,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-12-24 19:12:24,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-12-24 19:12:24,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-12-24 19:12:24,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-12-24 19:12:24,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2023-12-24 19:12:24,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2023-12-24 19:12:24,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-24 19:12:24,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-24 19:12:24,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2023-12-24 19:12:24,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2023-12-24 19:12:24,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-12-24 19:12:24,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-12-24 19:12:24,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2023-12-24 19:12:24,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2023-12-24 19:12:24,591 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 19:12:24,591 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 19:12:24,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 19:12:24,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 19:12:24,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-24 19:12:24,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-24 19:12:24,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2023-12-24 19:12:24,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2023-12-24 19:12:24,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-24 19:12:24,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-24 19:12:24,726 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 19:12:24,727 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 19:12:29,874 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 19:12:29,901 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 19:12:29,902 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 19:12:29,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 07:12:29 BoogieIcfgContainer [2023-12-24 19:12:29,902 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 19:12:29,903 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 19:12:29,903 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 19:12:29,905 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 19:12:29,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 07:12:24" (1/3) ... [2023-12-24 19:12:29,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fdd97bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 07:12:29, skipping insertion in model container [2023-12-24 19:12:29,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:12:24" (2/3) ... [2023-12-24 19:12:29,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fdd97bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 07:12:29, skipping insertion in model container [2023-12-24 19:12:29,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 07:12:29" (3/3) ... [2023-12-24 19:12:29,907 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-14.i [2023-12-24 19:12:29,917 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 19:12:29,917 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 19:12:29,950 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 19:12:29,954 INFO L357 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, mHoare=true, 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;@6ff17020, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 19:12:29,954 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 19:12:29,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 97 states have (on average 1.4536082474226804) internal successors, (141), 98 states have internal predecessors, (141), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-24 19:12:29,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-24 19:12:29,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:12:29,973 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:12:29,973 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:12:29,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:12:29,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1045265753, now seen corresponding path program 1 times [2023-12-24 19:12:29,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:12:29,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335523844] [2023-12-24 19:12:29,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:12:29,986 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:12:29,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:12:29,988 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:12:29,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-24 19:12:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:12:30,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 19:12:30,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:12:30,381 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 436 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2023-12-24 19:12:30,382 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:12:30,382 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:12:30,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335523844] [2023-12-24 19:12:30,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [335523844] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:12:30,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:12:30,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 19:12:30,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127695365] [2023-12-24 19:12:30,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:12:30,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 19:12:30,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:12:30,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 19:12:30,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 19:12:30,427 INFO L87 Difference]: Start difference. First operand has 121 states, 97 states have (on average 1.4536082474226804) internal successors, (141), 98 states have internal predecessors, (141), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-24 19:12:30,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:12:30,484 INFO L93 Difference]: Finished difference Result 239 states and 385 transitions. [2023-12-24 19:12:30,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 19:12:30,486 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 163 [2023-12-24 19:12:30,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:12:30,491 INFO L225 Difference]: With dead ends: 239 [2023-12-24 19:12:30,491 INFO L226 Difference]: Without dead ends: 119 [2023-12-24 19:12:30,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 19:12:30,495 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 19:12:30,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 174 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 19:12:30,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-12-24 19:12:30,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2023-12-24 19:12:30,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 96 states have (on average 1.4166666666666667) internal successors, (136), 96 states have internal predecessors, (136), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-24 19:12:30,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 178 transitions. [2023-12-24 19:12:30,525 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 178 transitions. Word has length 163 [2023-12-24 19:12:30,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:12:30,526 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 178 transitions. [2023-12-24 19:12:30,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-24 19:12:30,526 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 178 transitions. [2023-12-24 19:12:30,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-24 19:12:30,530 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:12:30,530 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:12:30,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-24 19:12:30,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:12:30,739 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:12:30,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:12:30,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1512887547, now seen corresponding path program 1 times [2023-12-24 19:12:30,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:12:30,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165576730] [2023-12-24 19:12:30,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:12:30,741 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:12:30,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:12:30,742 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:12:30,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-24 19:12:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:12:31,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 19:12:31,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:12:31,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-12-24 19:12:31,657 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-12-24 19:12:31,657 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:12:31,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:12:31,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [165576730] [2023-12-24 19:12:31,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [165576730] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:12:31,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:12:31,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 19:12:31,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141720544] [2023-12-24 19:12:31,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:12:31,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 19:12:31,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:12:31,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 19:12:31,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 19:12:31,660 INFO L87 Difference]: Start difference. First operand 119 states and 178 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-24 19:12:36,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:12:36,087 INFO L93 Difference]: Finished difference Result 356 states and 533 transitions. [2023-12-24 19:12:36,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 19:12:36,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 163 [2023-12-24 19:12:36,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:12:36,090 INFO L225 Difference]: With dead ends: 356 [2023-12-24 19:12:36,090 INFO L226 Difference]: Without dead ends: 238 [2023-12-24 19:12:36,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 19:12:36,092 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 141 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-24 19:12:36,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 406 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-24 19:12:36,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-12-24 19:12:36,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 211. [2023-12-24 19:12:36,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 166 states have (on average 1.3975903614457832) internal successors, (232), 166 states have internal predecessors, (232), 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) [2023-12-24 19:12:36,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 316 transitions. [2023-12-24 19:12:36,115 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 316 transitions. Word has length 163 [2023-12-24 19:12:36,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:12:36,116 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 316 transitions. [2023-12-24 19:12:36,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-24 19:12:36,116 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 316 transitions. [2023-12-24 19:12:36,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-24 19:12:36,117 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:12:36,118 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:12:36,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-24 19:12:36,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:12:36,327 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:12:36,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:12:36,328 INFO L85 PathProgramCache]: Analyzing trace with hash -292550787, now seen corresponding path program 1 times [2023-12-24 19:12:36,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:12:36,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [183862717] [2023-12-24 19:12:36,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:12:36,329 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:12:36,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:12:36,330 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:12:36,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-24 19:12:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:12:36,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 19:12:36,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:12:36,655 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-12-24 19:12:36,655 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:12:36,655 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:12:36,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [183862717] [2023-12-24 19:12:36,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [183862717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:12:36,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:12:36,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 19:12:36,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180733489] [2023-12-24 19:12:36,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:12:36,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 19:12:36,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:12:36,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 19:12:36,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 19:12:36,657 INFO L87 Difference]: Start difference. First operand 211 states and 316 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-24 19:12:36,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:12:36,717 INFO L93 Difference]: Finished difference Result 361 states and 545 transitions. [2023-12-24 19:12:36,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 19:12:36,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 163 [2023-12-24 19:12:36,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:12:36,719 INFO L225 Difference]: With dead ends: 361 [2023-12-24 19:12:36,719 INFO L226 Difference]: Without dead ends: 219 [2023-12-24 19:12:36,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 19:12:36,721 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 3 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 19:12:36,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 506 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 19:12:36,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-12-24 19:12:36,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 217. [2023-12-24 19:12:36,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 172 states have (on average 1.3837209302325582) internal successors, (238), 172 states have internal predecessors, (238), 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) [2023-12-24 19:12:36,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 322 transitions. [2023-12-24 19:12:36,734 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 322 transitions. Word has length 163 [2023-12-24 19:12:36,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:12:36,734 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 322 transitions. [2023-12-24 19:12:36,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-24 19:12:36,735 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 322 transitions. [2023-12-24 19:12:36,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-24 19:12:36,736 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:12:36,736 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:12:36,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-24 19:12:36,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:12:36,946 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:12:36,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:12:36,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1396392955, now seen corresponding path program 1 times [2023-12-24 19:12:36,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:12:36,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499242091] [2023-12-24 19:12:36,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:12:36,947 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:12:36,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:12:36,948 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:12:36,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-24 19:12:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:12:37,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-24 19:12:37,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:12:37,340 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-12-24 19:12:37,340 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:12:37,341 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:12:37,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499242091] [2023-12-24 19:12:37,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499242091] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:12:37,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:12:37,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 19:12:37,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080104570] [2023-12-24 19:12:37,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:12:37,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 19:12:37,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:12:37,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 19:12:37,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 19:12:37,348 INFO L87 Difference]: Start difference. First operand 217 states and 322 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-24 19:12:40,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-24 19:12:42,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:12:42,965 INFO L93 Difference]: Finished difference Result 367 states and 547 transitions. [2023-12-24 19:12:42,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 19:12:42,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 163 [2023-12-24 19:12:42,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:12:42,967 INFO L225 Difference]: With dead ends: 367 [2023-12-24 19:12:42,967 INFO L226 Difference]: Without dead ends: 219 [2023-12-24 19:12:42,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 19:12:42,969 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 1 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-24 19:12:42,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 432 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-24 19:12:42,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-12-24 19:12:42,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-12-24 19:12:42,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 174 states have (on average 1.3793103448275863) internal successors, (240), 174 states have internal predecessors, (240), 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) [2023-12-24 19:12:42,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 324 transitions. [2023-12-24 19:12:42,994 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 324 transitions. Word has length 163 [2023-12-24 19:12:42,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:12:42,996 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 324 transitions. [2023-12-24 19:12:42,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-24 19:12:42,996 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 324 transitions. [2023-12-24 19:12:43,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-24 19:12:43,000 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:12:43,000 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:12:43,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-24 19:12:43,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:12:43,214 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:12:43,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:12:43,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1983198969, now seen corresponding path program 1 times [2023-12-24 19:12:43,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:12:43,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954555927] [2023-12-24 19:12:43,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:12:43,215 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:12:43,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:12:43,216 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:12:43,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-24 19:12:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:12:43,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 19:12:43,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:12:44,067 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 19:12:44,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 65 [2023-12-24 19:12:44,106 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2023-12-24 19:12:44,106 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:12:44,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:12:44,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954555927] [2023-12-24 19:12:44,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954555927] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:12:44,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:12:44,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 19:12:44,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523672935] [2023-12-24 19:12:44,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:12:44,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 19:12:44,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:12:44,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 19:12:44,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-24 19:12:44,108 INFO L87 Difference]: Start difference. First operand 219 states and 324 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-24 19:12:46,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-24 19:12:52,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-24 19:12:52,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:12:52,859 INFO L93 Difference]: Finished difference Result 392 states and 578 transitions. [2023-12-24 19:12:52,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 19:12:52,860 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 163 [2023-12-24 19:12:52,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:12:52,862 INFO L225 Difference]: With dead ends: 392 [2023-12-24 19:12:52,862 INFO L226 Difference]: Without dead ends: 231 [2023-12-24 19:12:52,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-24 19:12:52,863 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 121 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-12-24 19:12:52,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 488 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2023-12-24 19:12:52,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-12-24 19:12:52,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 219. [2023-12-24 19:12:52,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 174 states have (on average 1.367816091954023) internal successors, (238), 174 states have internal predecessors, (238), 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) [2023-12-24 19:12:52,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 322 transitions. [2023-12-24 19:12:52,874 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 322 transitions. Word has length 163 [2023-12-24 19:12:52,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:12:52,874 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 322 transitions. [2023-12-24 19:12:52,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-24 19:12:52,875 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 322 transitions. [2023-12-24 19:12:52,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-24 19:12:52,876 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:12:52,876 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:12:52,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-24 19:12:53,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:12:53,086 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:12:53,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:12:53,087 INFO L85 PathProgramCache]: Analyzing trace with hash 764539635, now seen corresponding path program 1 times [2023-12-24 19:12:53,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:12:53,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429077633] [2023-12-24 19:12:53,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:12:53,087 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:12:53,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:12:53,091 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:12:53,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-24 19:12:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:12:53,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-24 19:12:53,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:12:56,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-24 19:12:56,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2023-12-24 19:12:57,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2023-12-24 19:12:57,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2023-12-24 19:12:57,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2023-12-24 19:12:58,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2023-12-24 19:13:02,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 40 [2023-12-24 19:13:07,769 INFO L349 Elim1Store]: treesize reduction 124, result has 25.7 percent of original size [2023-12-24 19:13:07,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 64 treesize of output 99 [2023-12-24 19:13:10,135 INFO L349 Elim1Store]: treesize reduction 394, result has 33.2 percent of original size [2023-12-24 19:13:10,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 10 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 50 case distinctions, treesize of input 250 treesize of output 388 [2023-12-24 19:17:59,268 WARN L293 SmtUtils]: Spent 12.07s on a formula simplification that was a NOOP. DAG size: 2947 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 19:24:55,168 WARN L293 SmtUtils]: Spent 23.15s on a formula simplification. DAG size of input: 2951 DAG size of output: 2951 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-24 19:26:51,859 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 19:26:51,871 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-24 19:26:51,881 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 19:26:51,898 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 19:26:52,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:26:52,060 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 166 with TraceHistMax 21,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-19-3-4-2-3-1 context. [2023-12-24 19:26:52,063 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-24 19:26:52,065 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 19:26:52,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 07:26:52 BoogieIcfgContainer [2023-12-24 19:26:52,067 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 19:26:52,067 INFO L158 Benchmark]: Toolchain (without parser) took 867946.33ms. Allocated memory was 268.4MB in the beginning and 671.1MB in the end (delta: 402.7MB). Free memory was 225.2MB in the beginning and 411.0MB in the end (delta: -185.8MB). Peak memory consumption was 416.0MB. Max. memory is 8.0GB. [2023-12-24 19:26:52,067 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 207.6MB. Free memory is still 158.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 19:26:52,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.62ms. Allocated memory is still 268.4MB. Free memory was 225.2MB in the beginning and 206.8MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-24 19:26:52,068 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.60ms. Allocated memory is still 268.4MB. Free memory was 206.8MB in the beginning and 202.7MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-24 19:26:52,068 INFO L158 Benchmark]: Boogie Preprocessor took 61.47ms. Allocated memory is still 268.4MB. Free memory was 202.7MB in the beginning and 197.1MB in the end (delta: 5.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-24 19:26:52,068 INFO L158 Benchmark]: RCFGBuilder took 5395.35ms. Allocated memory is still 268.4MB. Free memory was 197.1MB in the beginning and 217.7MB in the end (delta: -20.6MB). Peak memory consumption was 37.3MB. Max. memory is 8.0GB. [2023-12-24 19:26:52,068 INFO L158 Benchmark]: TraceAbstraction took 862163.60ms. Allocated memory was 268.4MB in the beginning and 671.1MB in the end (delta: 402.7MB). Free memory was 216.7MB in the beginning and 411.0MB in the end (delta: -194.3MB). Peak memory consumption was 406.0MB. Max. memory is 8.0GB. [2023-12-24 19:26:52,069 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 207.6MB. Free memory is still 158.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 267.62ms. Allocated memory is still 268.4MB. Free memory was 225.2MB in the beginning and 206.8MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.60ms. Allocated memory is still 268.4MB. Free memory was 206.8MB in the beginning and 202.7MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 61.47ms. Allocated memory is still 268.4MB. Free memory was 202.7MB in the beginning and 197.1MB in the end (delta: 5.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 5395.35ms. Allocated memory is still 268.4MB. Free memory was 197.1MB in the beginning and 217.7MB in the end (delta: -20.6MB). Peak memory consumption was 37.3MB. Max. memory is 8.0GB. * TraceAbstraction took 862163.60ms. Allocated memory was 268.4MB in the beginning and 671.1MB in the end (delta: 402.7MB). Free memory was 216.7MB in the beginning and 411.0MB in the end (delta: -194.3MB). Peak memory consumption was 406.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 166 with TraceHistMax 21,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-19-3-4-2-3-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 121 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 862.1s, OverallIterations: 6, TraceHistogramMax: 21, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 19.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 266 SdHoareTripleChecker+Valid, 18.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 266 mSDsluCounter, 2006 SdHoareTripleChecker+Invalid, 17.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1202 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 474 IncrementalHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 804 mSDtfsCounter, 474 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 817 GetRequests, 800 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=219occurred in iteration=4, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 41 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 815 NumberOfCodeBlocks, 815 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 810 ConstructedInterpolants, 0 QuantifiedInterpolants, 1753 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1777 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 4200/4200 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown