/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 23:08:36,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 23:08:36,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 23:08:36,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 23:08:36,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 23:08:36,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 23:08:36,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 23:08:36,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 23:08:36,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 23:08:36,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 23:08:36,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 23:08:36,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 23:08:36,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 23:08:36,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 23:08:36,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 23:08:36,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 23:08:36,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 23:08:36,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 23:08:36,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 23:08:36,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 23:08:36,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 23:08:36,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 23:08:36,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 23:08:36,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 23:08:36,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 23:08:36,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 23:08:36,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 23:08:36,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 23:08:36,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 23:08:36,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 23:08:36,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 23:08:36,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 23:08:36,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 23:08:36,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 23:08:36,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 23:08:36,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 23:08:36,949 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-21 23:08:36,976 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 23:08:36,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 23:08:36,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 23:08:36,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 23:08:36,978 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 23:08:36,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 23:08:36,979 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 23:08:36,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 23:08:36,979 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 23:08:36,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 23:08:36,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 23:08:36,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 23:08:36,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 23:08:36,980 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 23:08:36,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 23:08:36,981 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 23:08:36,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 23:08:36,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 23:08:36,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 23:08:36,981 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 23:08:36,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 23:08:36,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:08:36,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 23:08:36,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 23:08:36,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 23:08:36,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 23:08:36,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 23:08:36,983 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 23:08:36,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 23:08:37,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 23:08:37,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 23:08:37,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 23:08:37,319 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 23:08:37,321 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 23:08:37,322 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2020-10-21 23:08:37,390 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/072a78a20/f32e989a28724d5eb61e2d912e8e75d6/FLAG9b9312ce7 [2020-10-21 23:08:37,960 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 23:08:37,961 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2020-10-21 23:08:37,975 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/072a78a20/f32e989a28724d5eb61e2d912e8e75d6/FLAG9b9312ce7 [2020-10-21 23:08:38,221 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/072a78a20/f32e989a28724d5eb61e2d912e8e75d6 [2020-10-21 23:08:38,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 23:08:38,237 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 23:08:38,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 23:08:38,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 23:08:38,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 23:08:38,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:08:38" (1/1) ... [2020-10-21 23:08:38,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15154e5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:38, skipping insertion in model container [2020-10-21 23:08:38,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:08:38" (1/1) ... [2020-10-21 23:08:38,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 23:08:38,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 23:08:38,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:08:38,848 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 23:08:38,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:08:38,966 INFO L208 MainTranslator]: Completed translation [2020-10-21 23:08:38,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:38 WrapperNode [2020-10-21 23:08:38,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 23:08:38,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 23:08:38,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 23:08:38,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 23:08:38,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:38" (1/1) ... [2020-10-21 23:08:38,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:38" (1/1) ... [2020-10-21 23:08:39,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 23:08:39,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 23:08:39,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 23:08:39,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 23:08:39,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:38" (1/1) ... [2020-10-21 23:08:39,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:38" (1/1) ... [2020-10-21 23:08:39,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:38" (1/1) ... [2020-10-21 23:08:39,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:38" (1/1) ... [2020-10-21 23:08:39,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:38" (1/1) ... [2020-10-21 23:08:39,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:38" (1/1) ... [2020-10-21 23:08:39,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:38" (1/1) ... [2020-10-21 23:08:39,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 23:08:39,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 23:08:39,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 23:08:39,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 23:08:39,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:08:39,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 23:08:39,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 23:08:39,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 23:08:39,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 23:08:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 23:08:39,118 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 23:08:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 23:08:39,118 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 23:08:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 23:08:39,119 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 23:08:39,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 23:08:39,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 23:08:39,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 23:08:39,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 23:08:39,121 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 23:08:39,515 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 23:08:39,515 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 23:08:39,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:08:39 BoogieIcfgContainer [2020-10-21 23:08:39,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 23:08:39,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 23:08:39,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 23:08:39,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 23:08:39,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 11:08:38" (1/3) ... [2020-10-21 23:08:39,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7815ea4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:08:39, skipping insertion in model container [2020-10-21 23:08:39,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:38" (2/3) ... [2020-10-21 23:08:39,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7815ea4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:08:39, skipping insertion in model container [2020-10-21 23:08:39,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:08:39" (3/3) ... [2020-10-21 23:08:39,536 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt.i [2020-10-21 23:08:39,548 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 23:08:39,548 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 23:08:39,557 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 23:08:39,558 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 23:08:39,587 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,587 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,588 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,588 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,588 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,589 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,589 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,589 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,590 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,590 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,591 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,591 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,591 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,591 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,592 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,592 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,592 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,592 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,596 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,597 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,597 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,597 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,603 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,603 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,603 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,604 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,606 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,606 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,606 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,607 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:39,609 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 23:08:39,622 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 23:08:39,639 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:08:39,640 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:08:39,640 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:08:39,640 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 23:08:39,640 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:08:39,640 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:08:39,640 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:08:39,640 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:08:39,653 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:08:39,653 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 77 transitions, 169 flow [2020-10-21 23:08:39,655 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 77 transitions, 169 flow [2020-10-21 23:08:39,657 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 77 transitions, 169 flow [2020-10-21 23:08:39,706 INFO L129 PetriNetUnfolder]: 3/74 cut-off events. [2020-10-21 23:08:39,706 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 23:08:39,711 INFO L80 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 74 events. 3/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-21 23:08:39,714 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-21 23:08:40,921 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-10-21 23:08:41,194 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-21 23:08:41,340 INFO L131 LiptonReduction]: Checked pairs total: 3066 [2020-10-21 23:08:41,341 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-10-21 23:08:41,348 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-21 23:08:41,383 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-21 23:08:41,386 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-21 23:08:41,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 23:08:41,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:08:41,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:08:41,396 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:08:41,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:08:41,402 INFO L82 PathProgramCache]: Analyzing trace with hash 147242941, now seen corresponding path program 1 times [2020-10-21 23:08:41,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:08:41,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392811993] [2020-10-21 23:08:41,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:08:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:08:41,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:08:41,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392811993] [2020-10-21 23:08:41,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:08:41,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:08:41,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052093041] [2020-10-21 23:08:41,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 23:08:41,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:08:41,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 23:08:41,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 23:08:41,629 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-21 23:08:41,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:08:41,661 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-21 23:08:41,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 23:08:41,662 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-21 23:08:41,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:08:41,680 INFO L225 Difference]: With dead ends: 362 [2020-10-21 23:08:41,681 INFO L226 Difference]: Without dead ends: 298 [2020-10-21 23:08:41,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 23:08:41,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-21 23:08:41,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-21 23:08:41,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-21 23:08:41,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-21 23:08:41,762 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-21 23:08:41,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:08:41,763 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-21 23:08:41,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 23:08:41,763 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-21 23:08:41,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 23:08:41,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:08:41,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:08:41,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 23:08:41,766 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:08:41,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:08:41,766 INFO L82 PathProgramCache]: Analyzing trace with hash 269557700, now seen corresponding path program 1 times [2020-10-21 23:08:41,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:08:41,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824482895] [2020-10-21 23:08:41,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:08:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:08:41,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:08:41,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824482895] [2020-10-21 23:08:41,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:08:41,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:08:41,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237644437] [2020-10-21 23:08:41,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:08:41,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:08:41,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:08:41,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:08:41,901 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-21 23:08:41,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:08:41,923 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-21 23:08:41,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:08:41,924 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-21 23:08:41,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:08:41,927 INFO L225 Difference]: With dead ends: 217 [2020-10-21 23:08:41,927 INFO L226 Difference]: Without dead ends: 217 [2020-10-21 23:08:41,928 INFO L677 BasicCegarLoop]: 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 [2020-10-21 23:08:41,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-21 23:08:41,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-21 23:08:41,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-21 23:08:41,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-21 23:08:41,948 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-21 23:08:41,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:08:41,949 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-21 23:08:41,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:08:41,949 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-21 23:08:41,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 23:08:41,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:08:41,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:08:41,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 23:08:41,951 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:08:41,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:08:41,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1876534856, now seen corresponding path program 1 times [2020-10-21 23:08:41,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:08:41,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313489586] [2020-10-21 23:08:41,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:08:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:08:42,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:08:42,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313489586] [2020-10-21 23:08:42,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:08:42,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:08:42,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455879079] [2020-10-21 23:08:42,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:08:42,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:08:42,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:08:42,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:08:42,024 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-21 23:08:42,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:08:42,055 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-21 23:08:42,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:08:42,056 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-21 23:08:42,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:08:42,057 INFO L225 Difference]: With dead ends: 136 [2020-10-21 23:08:42,057 INFO L226 Difference]: Without dead ends: 136 [2020-10-21 23:08:42,058 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:08:42,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-21 23:08:42,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-21 23:08:42,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-21 23:08:42,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-21 23:08:42,068 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-21 23:08:42,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:08:42,068 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-21 23:08:42,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:08:42,069 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-21 23:08:42,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 23:08:42,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:08:42,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:08:42,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 23:08:42,071 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:08:42,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:08:42,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1466848330, now seen corresponding path program 1 times [2020-10-21 23:08:42,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:08:42,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248777217] [2020-10-21 23:08:42,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:08:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:08:42,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:08:42,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248777217] [2020-10-21 23:08:42,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:08:42,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 23:08:42,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501579065] [2020-10-21 23:08:42,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:08:42,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:08:42,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:08:42,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:08:42,141 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-21 23:08:42,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:08:42,175 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-21 23:08:42,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:08:42,175 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-21 23:08:42,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:08:42,176 INFO L225 Difference]: With dead ends: 109 [2020-10-21 23:08:42,177 INFO L226 Difference]: Without dead ends: 109 [2020-10-21 23:08:42,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:08:42,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-21 23:08:42,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-21 23:08:42,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-21 23:08:42,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-21 23:08:42,184 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-21 23:08:42,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:08:42,184 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-21 23:08:42,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:08:42,184 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-21 23:08:42,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 23:08:42,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:08:42,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:08:42,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 23:08:42,186 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:08:42,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:08:42,187 INFO L82 PathProgramCache]: Analyzing trace with hash -182122517, now seen corresponding path program 1 times [2020-10-21 23:08:42,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:08:42,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931437504] [2020-10-21 23:08:42,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:08:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:08:42,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:08:42,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931437504] [2020-10-21 23:08:42,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:08:42,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:08:42,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508912045] [2020-10-21 23:08:42,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:08:42,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:08:42,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:08:42,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:08:42,292 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-10-21 23:08:42,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:08:42,318 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-21 23:08:42,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:08:42,318 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-21 23:08:42,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:08:42,319 INFO L225 Difference]: With dead ends: 135 [2020-10-21 23:08:42,319 INFO L226 Difference]: Without dead ends: 55 [2020-10-21 23:08:42,320 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:08:42,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-21 23:08:42,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-21 23:08:42,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-21 23:08:42,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-21 23:08:42,326 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-10-21 23:08:42,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:08:42,326 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-21 23:08:42,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:08:42,327 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-21 23:08:42,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 23:08:42,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:08:42,328 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:08:42,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 23:08:42,328 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:08:42,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:08:42,329 INFO L82 PathProgramCache]: Analyzing trace with hash -499320339, now seen corresponding path program 2 times [2020-10-21 23:08:42,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:08:42,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158626649] [2020-10-21 23:08:42,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:08:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:08:42,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:08:42,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158626649] [2020-10-21 23:08:42,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:08:42,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:08:42,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332906873] [2020-10-21 23:08:42,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:08:42,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:08:42,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:08:42,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:08:42,386 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 4 states. [2020-10-21 23:08:42,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:08:42,403 INFO L93 Difference]: Finished difference Result 75 states and 132 transitions. [2020-10-21 23:08:42,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:08:42,404 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-21 23:08:42,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:08:42,405 INFO L225 Difference]: With dead ends: 75 [2020-10-21 23:08:42,405 INFO L226 Difference]: Without dead ends: 37 [2020-10-21 23:08:42,405 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:08:42,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-21 23:08:42,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-21 23:08:42,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-21 23:08:42,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-10-21 23:08:42,408 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-10-21 23:08:42,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:08:42,409 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-10-21 23:08:42,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:08:42,409 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-10-21 23:08:42,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 23:08:42,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:08:42,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:08:42,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 23:08:42,410 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:08:42,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:08:42,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1121061337, now seen corresponding path program 3 times [2020-10-21 23:08:42,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:08:42,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131505442] [2020-10-21 23:08:42,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:08:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:08:42,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:08:42,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131505442] [2020-10-21 23:08:42,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:08:42,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:08:42,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163150752] [2020-10-21 23:08:42,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:08:42,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:08:42,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:08:42,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:08:42,499 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 4 states. [2020-10-21 23:08:42,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:08:42,519 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-10-21 23:08:42,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:08:42,520 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-21 23:08:42,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:08:42,520 INFO L225 Difference]: With dead ends: 36 [2020-10-21 23:08:42,520 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 23:08:42,521 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:08:42,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 23:08:42,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 23:08:42,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 23:08:42,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 23:08:42,522 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-21 23:08:42,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:08:42,522 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 23:08:42,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:08:42,523 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 23:08:42,523 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 23:08:42,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 23:08:42,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 11:08:42 BasicIcfg [2020-10-21 23:08:42,528 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 23:08:42,531 INFO L168 Benchmark]: Toolchain (without parser) took 4298.41 ms. Allocated memory was 138.9 MB in the beginning and 250.1 MB in the end (delta: 111.1 MB). Free memory was 100.8 MB in the beginning and 206.4 MB in the end (delta: -105.6 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2020-10-21 23:08:42,538 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-21 23:08:42,540 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.37 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.0 MB in the beginning and 156.3 MB in the end (delta: -56.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2020-10-21 23:08:42,541 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.89 ms. Allocated memory is still 202.4 MB. Free memory was 156.3 MB in the beginning and 154.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:08:42,541 INFO L168 Benchmark]: Boogie Preprocessor took 29.51 ms. Allocated memory is still 202.4 MB. Free memory was 154.4 MB in the beginning and 152.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:08:42,543 INFO L168 Benchmark]: RCFGBuilder took 469.85 ms. Allocated memory is still 202.4 MB. Free memory was 152.4 MB in the beginning and 128.5 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-10-21 23:08:42,547 INFO L168 Benchmark]: TraceAbstraction took 3008.50 ms. Allocated memory was 202.4 MB in the beginning and 250.1 MB in the end (delta: 47.7 MB). Free memory was 127.5 MB in the beginning and 206.4 MB in the end (delta: -78.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-21 23:08:42,559 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 729.37 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.0 MB in the beginning and 156.3 MB in the end (delta: -56.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.89 ms. Allocated memory is still 202.4 MB. Free memory was 156.3 MB in the beginning and 154.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.51 ms. Allocated memory is still 202.4 MB. Free memory was 154.4 MB in the beginning and 152.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 469.85 ms. Allocated memory is still 202.4 MB. Free memory was 152.4 MB in the beginning and 128.5 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3008.50 ms. Allocated memory was 202.4 MB in the beginning and 250.1 MB in the end (delta: 47.7 MB). Free memory was 127.5 MB in the beginning and 206.4 MB in the end (delta: -78.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 744 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 51 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 84 PlacesBefore, 32 PlacesAfterwards, 77 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 3066 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 130 SDtfs, 65 SDslu, 161 SDs, 0 SdLazy, 50 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2522 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 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 proved your program to be correct! Received shutdown request...