/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/safe035_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:12:10,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:12:10,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:12:10,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:12:10,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:12:10,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:12:10,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:12:10,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:12:10,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:12:10,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:12:10,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:12:10,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:12:10,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:12:10,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:12:10,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:12:10,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:12:10,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:12:10,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:12:10,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:12:10,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:12:10,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:12:10,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:12:10,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:12:10,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:12:10,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:12:10,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:12:10,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:12:10,940 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:12:10,946 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:12:10,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:12:10,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:12:10,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:12:10,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:12:10,953 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:12:10,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:12:10,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:12:10,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:12:10,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:12:10,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:12:10,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:12:10,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:12:10,961 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 12:12:10,984 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:12:10,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:12:10,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:12:10,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:12:10,986 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:12:10,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:12:10,986 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:12:10,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:12:10,987 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:12:10,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:12:10,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:12:10,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:12:10,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:12:10,988 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:12:10,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:12:10,988 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:12:10,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:12:10,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:12:10,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:12:10,989 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:12:10,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:12:10,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:12:10,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:12:10,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:12:10,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:12:10,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:12:10,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:12:10,990 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:12:10,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:12:11,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:12:11,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:12:11,321 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:12:11,323 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:12:11,323 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:12:11,324 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.opt.i [2020-10-16 12:12:11,408 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3aab83799/29631a62e762419ea92d062845329f78/FLAG8b155c1eb [2020-10-16 12:12:12,009 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:12:12,009 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe035_tso.opt.i [2020-10-16 12:12:12,025 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3aab83799/29631a62e762419ea92d062845329f78/FLAG8b155c1eb [2020-10-16 12:12:12,306 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3aab83799/29631a62e762419ea92d062845329f78 [2020-10-16 12:12:12,316 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:12:12,317 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:12:12,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:12:12,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:12:12,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:12:12,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:12:12" (1/1) ... [2020-10-16 12:12:12,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5830eff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:12, skipping insertion in model container [2020-10-16 12:12:12,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:12:12" (1/1) ... [2020-10-16 12:12:12,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:12:12,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:12:12,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:12:13,001 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:12:13,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:12:13,156 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:12:13,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:13 WrapperNode [2020-10-16 12:12:13,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:12:13,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:12:13,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:12:13,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:12:13,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:13" (1/1) ... [2020-10-16 12:12:13,184 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:13" (1/1) ... [2020-10-16 12:12:13,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:12:13,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:12:13,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:12:13,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:12:13,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:13" (1/1) ... [2020-10-16 12:12:13,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:13" (1/1) ... [2020-10-16 12:12:13,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:13" (1/1) ... [2020-10-16 12:12:13,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:13" (1/1) ... [2020-10-16 12:12:13,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:13" (1/1) ... [2020-10-16 12:12:13,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:13" (1/1) ... [2020-10-16 12:12:13,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:13" (1/1) ... [2020-10-16 12:12:13,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:12:13,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:12:13,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:12:13,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:12:13,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 12:12:13,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:12:13,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 12:12:13,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:12:13,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:12:13,320 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 12:12:13,320 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 12:12:13,320 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 12:12:13,321 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 12:12:13,321 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 12:12:13,321 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 12:12:13,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 12:12:13,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:12:13,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:12:13,323 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:12:13,670 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:12:13,670 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 12:12:13,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:12:13 BoogieIcfgContainer [2020-10-16 12:12:13,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:12:13,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:12:13,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:12:13,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:12:13,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:12:12" (1/3) ... [2020-10-16 12:12:13,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2edf1c0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:12:13, skipping insertion in model container [2020-10-16 12:12:13,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:13" (2/3) ... [2020-10-16 12:12:13,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2edf1c0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:12:13, skipping insertion in model container [2020-10-16 12:12:13,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:12:13" (3/3) ... [2020-10-16 12:12:13,684 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_tso.opt.i [2020-10-16 12:12:13,698 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:12:13,698 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:12:13,706 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 12:12:13,708 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:12:13,750 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,750 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,751 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,751 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,752 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,752 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,753 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,753 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,753 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,753 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,754 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,754 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,755 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,755 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,755 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,755 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,756 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,756 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,760 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,761 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,761 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,761 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,767 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,767 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,768 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,768 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,770 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,771 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,771 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,771 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:13,774 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:12:13,789 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 12:12:13,812 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:12:13,813 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:12:13,813 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:12:13,813 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:12:13,813 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:12:13,813 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:12:13,814 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:12:13,814 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:12:13,828 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:12:13,829 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-16 12:12:13,832 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-16 12:12:13,835 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-16 12:12:13,890 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-16 12:12:13,890 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:12:13,896 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 12:12:13,899 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 12:12:15,197 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-10-16 12:12:15,392 INFO L132 LiptonReduction]: Checked pairs total: 2520 [2020-10-16 12:12:15,392 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-16 12:12:15,399 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-10-16 12:12:15,427 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-16 12:12:15,429 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-16 12:12:15,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 12:12:15,438 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:12:15,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:12:15,439 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:12:15,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:12:15,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1626757645, now seen corresponding path program 1 times [2020-10-16 12:12:15,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:12:15,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49026226] [2020-10-16 12:12:15,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:12:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:12:15,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:12:15,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49026226] [2020-10-16 12:12:15,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:12:15,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:12:15,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032846764] [2020-10-16 12:12:15,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:12:15,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:12:15,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:12:15,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:12:15,688 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-16 12:12:15,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:12:15,752 INFO L93 Difference]: Finished difference Result 294 states and 849 transitions. [2020-10-16 12:12:15,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:12:15,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 12:12:15,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:12:15,771 INFO L225 Difference]: With dead ends: 294 [2020-10-16 12:12:15,771 INFO L226 Difference]: Without dead ends: 230 [2020-10-16 12:12:15,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:12:15,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-16 12:12:15,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2020-10-16 12:12:15,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-16 12:12:15,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 641 transitions. [2020-10-16 12:12:15,843 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 641 transitions. Word has length 8 [2020-10-16 12:12:15,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:12:15,844 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 641 transitions. [2020-10-16 12:12:15,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:12:15,845 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 641 transitions. [2020-10-16 12:12:15,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:12:15,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:12:15,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:12:15,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:12:15,847 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:12:15,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:12:15,847 INFO L82 PathProgramCache]: Analyzing trace with hash 113122264, now seen corresponding path program 1 times [2020-10-16 12:12:15,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:12:15,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219555746] [2020-10-16 12:12:15,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:12:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:12:15,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:12:15,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219555746] [2020-10-16 12:12:15,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:12:15,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:12:15,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58127133] [2020-10-16 12:12:15,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:12:15,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:12:15,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:12:15,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:12:15,960 INFO L87 Difference]: Start difference. First operand 230 states and 641 transitions. Second operand 3 states. [2020-10-16 12:12:15,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:12:15,970 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-10-16 12:12:15,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:12:15,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 12:12:15,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:12:15,975 INFO L225 Difference]: With dead ends: 202 [2020-10-16 12:12:15,975 INFO L226 Difference]: Without dead ends: 202 [2020-10-16 12:12:15,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:12:15,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-16 12:12:15,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-16 12:12:15,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-16 12:12:15,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-16 12:12:15,997 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-10-16 12:12:15,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:12:15,997 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-16 12:12:15,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:12:15,998 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-16 12:12:15,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 12:12:15,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:12:16,000 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:12:16,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:12:16,000 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:12:16,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:12:16,001 INFO L82 PathProgramCache]: Analyzing trace with hash -54559497, now seen corresponding path program 1 times [2020-10-16 12:12:16,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:12:16,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608058814] [2020-10-16 12:12:16,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:12:16,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:12:16,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:12:16,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608058814] [2020-10-16 12:12:16,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:12:16,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:12:16,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941771761] [2020-10-16 12:12:16,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:12:16,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:12:16,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:12:16,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:12:16,046 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-16 12:12:16,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:12:16,063 INFO L93 Difference]: Finished difference Result 266 states and 704 transitions. [2020-10-16 12:12:16,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:12:16,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-16 12:12:16,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:12:16,065 INFO L225 Difference]: With dead ends: 266 [2020-10-16 12:12:16,066 INFO L226 Difference]: Without dead ends: 140 [2020-10-16 12:12:16,066 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 [2020-10-16 12:12:16,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-16 12:12:16,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-10-16 12:12:16,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-16 12:12:16,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 362 transitions. [2020-10-16 12:12:16,087 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 362 transitions. Word has length 10 [2020-10-16 12:12:16,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:12:16,088 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 362 transitions. [2020-10-16 12:12:16,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:12:16,088 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions. [2020-10-16 12:12:16,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:12:16,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:12:16,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:12:16,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:12:16,092 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:12:16,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:12:16,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1691362226, now seen corresponding path program 1 times [2020-10-16 12:12:16,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:12:16,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344957047] [2020-10-16 12:12:16,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:12:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:12:16,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:12:16,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344957047] [2020-10-16 12:12:16,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:12:16,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:12:16,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485505391] [2020-10-16 12:12:16,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:12:16,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:12:16,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:12:16,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:12:16,187 INFO L87 Difference]: Start difference. First operand 140 states and 362 transitions. Second operand 4 states. [2020-10-16 12:12:16,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:12:16,229 INFO L93 Difference]: Finished difference Result 165 states and 389 transitions. [2020-10-16 12:12:16,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:12:16,230 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 12:12:16,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:12:16,231 INFO L225 Difference]: With dead ends: 165 [2020-10-16 12:12:16,232 INFO L226 Difference]: Without dead ends: 113 [2020-10-16 12:12:16,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:12:16,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-16 12:12:16,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-10-16 12:12:16,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-16 12:12:16,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 257 transitions. [2020-10-16 12:12:16,242 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 257 transitions. Word has length 11 [2020-10-16 12:12:16,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:12:16,243 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 257 transitions. [2020-10-16 12:12:16,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:12:16,243 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions. [2020-10-16 12:12:16,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:12:16,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:12:16,244 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:12:16,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:12:16,245 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:12:16,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:12:16,245 INFO L82 PathProgramCache]: Analyzing trace with hash -891715752, now seen corresponding path program 1 times [2020-10-16 12:12:16,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:12:16,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220163409] [2020-10-16 12:12:16,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:12:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:12:16,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:12:16,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220163409] [2020-10-16 12:12:16,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:12:16,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:12:16,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000278861] [2020-10-16 12:12:16,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:12:16,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:12:16,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:12:16,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:12:16,330 INFO L87 Difference]: Start difference. First operand 113 states and 257 transitions. Second operand 5 states. [2020-10-16 12:12:16,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:12:16,385 INFO L93 Difference]: Finished difference Result 111 states and 232 transitions. [2020-10-16 12:12:16,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:12:16,386 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-16 12:12:16,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:12:16,387 INFO L225 Difference]: With dead ends: 111 [2020-10-16 12:12:16,387 INFO L226 Difference]: Without dead ends: 80 [2020-10-16 12:12:16,388 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:12:16,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-16 12:12:16,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-16 12:12:16,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-16 12:12:16,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 159 transitions. [2020-10-16 12:12:16,393 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 159 transitions. Word has length 12 [2020-10-16 12:12:16,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:12:16,393 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 159 transitions. [2020-10-16 12:12:16,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:12:16,394 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions. [2020-10-16 12:12:16,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 12:12:16,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:12:16,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:12:16,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:12:16,395 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:12:16,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:12:16,396 INFO L82 PathProgramCache]: Analyzing trace with hash 2053094164, now seen corresponding path program 1 times [2020-10-16 12:12:16,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:12:16,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32247183] [2020-10-16 12:12:16,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:12:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:12:16,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:12:16,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32247183] [2020-10-16 12:12:16,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:12:16,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:12:16,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289729692] [2020-10-16 12:12:16,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:12:16,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:12:16,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:12:16,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:12:16,471 INFO L87 Difference]: Start difference. First operand 80 states and 159 transitions. Second operand 6 states. [2020-10-16 12:12:16,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:12:16,539 INFO L93 Difference]: Finished difference Result 75 states and 147 transitions. [2020-10-16 12:12:16,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:12:16,539 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-16 12:12:16,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:12:16,540 INFO L225 Difference]: With dead ends: 75 [2020-10-16 12:12:16,540 INFO L226 Difference]: Without dead ends: 66 [2020-10-16 12:12:16,541 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:12:16,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-16 12:12:16,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-16 12:12:16,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-16 12:12:16,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 131 transitions. [2020-10-16 12:12:16,545 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 131 transitions. Word has length 14 [2020-10-16 12:12:16,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:12:16,546 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 131 transitions. [2020-10-16 12:12:16,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:12:16,546 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2020-10-16 12:12:16,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 12:12:16,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:12:16,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:12:16,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:12:16,548 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:12:16,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:12:16,548 INFO L82 PathProgramCache]: Analyzing trace with hash -913032564, now seen corresponding path program 1 times [2020-10-16 12:12:16,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:12:16,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465547617] [2020-10-16 12:12:16,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:12:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:12:16,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:12:16,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465547617] [2020-10-16 12:12:16,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:12:16,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:12:16,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925291865] [2020-10-16 12:12:16,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:12:16,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:12:16,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:12:16,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:12:16,589 INFO L87 Difference]: Start difference. First operand 66 states and 131 transitions. Second operand 4 states. [2020-10-16 12:12:16,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:12:16,613 INFO L93 Difference]: Finished difference Result 85 states and 165 transitions. [2020-10-16 12:12:16,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:12:16,614 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 12:12:16,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:12:16,614 INFO L225 Difference]: With dead ends: 85 [2020-10-16 12:12:16,615 INFO L226 Difference]: Without dead ends: 48 [2020-10-16 12:12:16,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:12:16,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-16 12:12:16,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-16 12:12:16,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-16 12:12:16,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions. [2020-10-16 12:12:16,618 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 17 [2020-10-16 12:12:16,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:12:16,619 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions. [2020-10-16 12:12:16,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:12:16,619 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2020-10-16 12:12:16,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 12:12:16,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:12:16,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:12:16,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:12:16,620 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:12:16,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:12:16,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1376526520, now seen corresponding path program 2 times [2020-10-16 12:12:16,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:12:16,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32721412] [2020-10-16 12:12:16,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:12:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:12:16,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:12:16,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32721412] [2020-10-16 12:12:16,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:12:16,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:12:16,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408680107] [2020-10-16 12:12:16,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:12:16,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:12:16,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:12:16,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:12:16,660 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 4 states. [2020-10-16 12:12:16,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:12:16,681 INFO L93 Difference]: Finished difference Result 73 states and 130 transitions. [2020-10-16 12:12:16,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:12:16,681 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 12:12:16,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:12:16,682 INFO L225 Difference]: With dead ends: 73 [2020-10-16 12:12:16,682 INFO L226 Difference]: Without dead ends: 42 [2020-10-16 12:12:16,683 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 [2020-10-16 12:12:16,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-16 12:12:16,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-16 12:12:16,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-16 12:12:16,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 71 transitions. [2020-10-16 12:12:16,686 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 71 transitions. Word has length 17 [2020-10-16 12:12:16,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:12:16,686 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 71 transitions. [2020-10-16 12:12:16,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:12:16,686 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions. [2020-10-16 12:12:16,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 12:12:16,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:12:16,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:12:16,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:12:16,688 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:12:16,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:12:16,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1323635892, now seen corresponding path program 3 times [2020-10-16 12:12:16,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:12:16,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524063571] [2020-10-16 12:12:16,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:12:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:12:16,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:12:16,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524063571] [2020-10-16 12:12:16,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:12:16,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:12:16,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678042310] [2020-10-16 12:12:16,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:12:16,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:12:16,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:12:16,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:12:16,729 INFO L87 Difference]: Start difference. First operand 42 states and 71 transitions. Second operand 4 states. [2020-10-16 12:12:16,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:12:16,740 INFO L93 Difference]: Finished difference Result 41 states and 70 transitions. [2020-10-16 12:12:16,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:12:16,740 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 12:12:16,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:12:16,741 INFO L225 Difference]: With dead ends: 41 [2020-10-16 12:12:16,741 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 12:12:16,741 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 [2020-10-16 12:12:16,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 12:12:16,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 12:12:16,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 12:12:16,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 12:12:16,742 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-16 12:12:16,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:12:16,743 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 12:12:16,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:12:16,743 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 12:12:16,743 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 12:12:16,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:12:16,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:12:16 BasicIcfg [2020-10-16 12:12:16,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:12:16,749 INFO L168 Benchmark]: Toolchain (without parser) took 4431.51 ms. Allocated memory was 140.5 MB in the beginning and 246.9 MB in the end (delta: 106.4 MB). Free memory was 102.0 MB in the beginning and 181.4 MB in the end (delta: -79.4 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:12:16,750 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 12:12:16,751 INFO L168 Benchmark]: CACSL2BoogieTranslator took 838.76 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 101.8 MB in the beginning and 160.8 MB in the end (delta: -59.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-10-16 12:12:16,752 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.54 ms. Allocated memory is still 202.9 MB. Free memory was 160.8 MB in the beginning and 158.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:12:16,752 INFO L168 Benchmark]: Boogie Preprocessor took 27.29 ms. Allocated memory is still 202.9 MB. Free memory was 158.8 MB in the beginning and 156.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-16 12:12:16,753 INFO L168 Benchmark]: RCFGBuilder took 429.30 ms. Allocated memory is still 202.9 MB. Free memory was 156.8 MB in the beginning and 134.8 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-10-16 12:12:16,754 INFO L168 Benchmark]: TraceAbstraction took 3072.15 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 134.1 MB in the beginning and 181.4 MB in the end (delta: -47.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:12:16,758 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 838.76 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 101.8 MB in the beginning and 160.8 MB in the end (delta: -59.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.54 ms. Allocated memory is still 202.9 MB. Free memory was 160.8 MB in the beginning and 158.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.29 ms. Allocated memory is still 202.9 MB. Free memory was 158.8 MB in the beginning and 156.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 429.30 ms. Allocated memory is still 202.9 MB. Free memory was 156.8 MB in the beginning and 134.8 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3072.15 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 134.1 MB in the beginning and 181.4 MB in the end (delta: -47.3 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 634 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 36 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 58 TotalNumberOfCompositions, 2520 MoverChecksTotal - PositiveResult [Line: 7]: 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 172 SDtfs, 128 SDslu, 202 SDs, 0 SdLazy, 120 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 3412 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...