/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-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-18 02:35:13,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-18 02:35:13,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-18 02:35:13,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-18 02:35:13,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-18 02:35:13,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-18 02:35:13,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-18 02:35:13,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-18 02:35:13,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-18 02:35:13,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-18 02:35:13,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-18 02:35:13,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-18 02:35:13,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-18 02:35:13,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-18 02:35:13,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-18 02:35:13,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-18 02:35:13,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-18 02:35:13,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-18 02:35:13,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-18 02:35:13,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-18 02:35:13,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-18 02:35:13,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-18 02:35:13,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-18 02:35:13,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-18 02:35:13,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-18 02:35:13,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-18 02:35:13,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-18 02:35:13,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-18 02:35:13,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-18 02:35:13,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-18 02:35:13,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-18 02:35:13,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-18 02:35:13,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-18 02:35:13,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-18 02:35:13,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-18 02:35:13,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-18 02:35:13,242 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-McrAutomaton-WP.epf [2020-09-18 02:35:13,270 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-18 02:35:13,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-18 02:35:13,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-18 02:35:13,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-18 02:35:13,274 INFO L138 SettingsManager]: * Use SBE=true [2020-09-18 02:35:13,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-18 02:35:13,275 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-18 02:35:13,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-18 02:35:13,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-18 02:35:13,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-18 02:35:13,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-18 02:35:13,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-18 02:35:13,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-18 02:35:13,276 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-18 02:35:13,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-18 02:35:13,276 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-18 02:35:13,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-18 02:35:13,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-18 02:35:13,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-18 02:35:13,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-18 02:35:13,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-18 02:35:13,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 02:35:13,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-18 02:35:13,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-18 02:35:13,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-18 02:35:13,282 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-18 02:35:13,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-18 02:35:13,282 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-18 02:35:13,282 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-18 02:35:13,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-18 02:35:13,283 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-18 02:35:13,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-18 02:35:13,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-18 02:35:13,830 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-18 02:35:13,832 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-18 02:35:13,832 INFO L275 PluginConnector]: CDTParser initialized [2020-09-18 02:35:13,834 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2020-09-18 02:35:13,926 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ca2cc2a3/ff28cca601444e179205671217e07da8/FLAG46c2d4e3f [2020-09-18 02:35:14,547 INFO L306 CDTParser]: Found 1 translation units. [2020-09-18 02:35:14,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2020-09-18 02:35:14,569 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ca2cc2a3/ff28cca601444e179205671217e07da8/FLAG46c2d4e3f [2020-09-18 02:35:14,807 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ca2cc2a3/ff28cca601444e179205671217e07da8 [2020-09-18 02:35:14,826 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-18 02:35:14,835 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-18 02:35:14,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-18 02:35:14,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-18 02:35:14,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-18 02:35:14,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 02:35:14" (1/1) ... [2020-09-18 02:35:14,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2372885a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:14, skipping insertion in model container [2020-09-18 02:35:14,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 02:35:14" (1/1) ... [2020-09-18 02:35:14,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-18 02:35:14,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-18 02:35:15,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 02:35:15,617 INFO L203 MainTranslator]: Completed pre-run [2020-09-18 02:35:15,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 02:35:15,773 INFO L208 MainTranslator]: Completed translation [2020-09-18 02:35:15,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:15 WrapperNode [2020-09-18 02:35:15,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-18 02:35:15,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-18 02:35:15,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-18 02:35:15,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-18 02:35:15,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:15" (1/1) ... [2020-09-18 02:35:15,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:15" (1/1) ... [2020-09-18 02:35:15,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-18 02:35:15,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-18 02:35:15,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-18 02:35:15,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-18 02:35:15,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:15" (1/1) ... [2020-09-18 02:35:15,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:15" (1/1) ... [2020-09-18 02:35:15,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:15" (1/1) ... [2020-09-18 02:35:15,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:15" (1/1) ... [2020-09-18 02:35:15,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:15" (1/1) ... [2020-09-18 02:35:15,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:15" (1/1) ... [2020-09-18 02:35:15,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:15" (1/1) ... [2020-09-18 02:35:15,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-18 02:35:15,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-18 02:35:15,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-18 02:35:15,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-18 02:35:15,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:15" (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 [2020-09-18 02:35:15,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-18 02:35:15,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-18 02:35:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-18 02:35:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-18 02:35:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-18 02:35:15,956 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-18 02:35:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-18 02:35:15,958 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-18 02:35:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-18 02:35:15,958 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-18 02:35:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-18 02:35:15,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-18 02:35:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-18 02:35:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-18 02:35:15,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-18 02:35:15,962 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-18 02:35:16,395 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-18 02:35:16,396 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-18 02:35:16,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 02:35:16 BoogieIcfgContainer [2020-09-18 02:35:16,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-18 02:35:16,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-18 02:35:16,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-18 02:35:16,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-18 02:35:16,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 02:35:14" (1/3) ... [2020-09-18 02:35:16,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9fde1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 02:35:16, skipping insertion in model container [2020-09-18 02:35:16,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:15" (2/3) ... [2020-09-18 02:35:16,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9fde1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 02:35:16, skipping insertion in model container [2020-09-18 02:35:16,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 02:35:16" (3/3) ... [2020-09-18 02:35:16,411 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt.i [2020-09-18 02:35:16,423 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-18 02:35:16,424 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-18 02:35:16,434 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-18 02:35:16,435 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-18 02:35:16,468 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,468 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,468 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,469 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,469 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,469 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,470 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,471 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,472 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,472 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,472 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,472 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,473 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,473 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,474 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,474 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,474 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,474 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,475 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,475 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,479 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,480 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,480 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,480 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,488 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,488 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,488 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,489 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,493 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,494 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,494 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,494 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,497 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,497 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:16,521 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-18 02:35:16,549 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 02:35:16,549 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 02:35:16,549 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 02:35:16,550 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 02:35:16,550 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 02:35:16,550 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 02:35:16,550 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 02:35:16,550 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 02:35:16,570 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2020-09-18 02:35:16,572 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-09-18 02:35:16,638 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-09-18 02:35:16,638 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 02:35:16,649 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-09-18 02:35:16,657 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-09-18 02:35:16,708 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-09-18 02:35:16,708 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 02:35:16,710 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-09-18 02:35:16,714 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2016 [2020-09-18 02:35:16,716 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 02:35:18,230 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-09-18 02:35:18,296 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4485 [2020-09-18 02:35:18,296 INFO L214 etLargeBlockEncoding]: Total number of compositions: 67 [2020-09-18 02:35:18,300 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-09-18 02:35:18,410 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-09-18 02:35:18,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-09-18 02:35:18,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-18 02:35:18,426 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:35:18,427 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 02:35:18,428 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:35:18,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:35:18,435 INFO L82 PathProgramCache]: Analyzing trace with hash 546901279, now seen corresponding path program 1 times [2020-09-18 02:35:18,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:35:18,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890535760] [2020-09-18 02:35:18,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:35:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:35:18,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:35:18,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890535760] [2020-09-18 02:35:18,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:35:18,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 02:35:18,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1167363249] [2020-09-18 02:35:18,669 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:35:18,672 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:35:18,690 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-09-18 02:35:18,691 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:35:18,693 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:35:18,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-18 02:35:18,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:35:18,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-18 02:35:18,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-18 02:35:18,715 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-09-18 02:35:18,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:35:18,773 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-09-18 02:35:18,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-18 02:35:18,775 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-18 02:35:18,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:35:18,820 INFO L225 Difference]: With dead ends: 1450 [2020-09-18 02:35:18,820 INFO L226 Difference]: Without dead ends: 1194 [2020-09-18 02:35:18,824 INFO L675 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 [2020-09-18 02:35:18,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-09-18 02:35:18,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-09-18 02:35:18,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-09-18 02:35:19,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-09-18 02:35:19,017 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-09-18 02:35:19,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:35:19,020 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-09-18 02:35:19,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-18 02:35:19,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-09-18 02:35:19,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-18 02:35:19,029 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:35:19,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 02:35:19,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-18 02:35:19,029 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:35:19,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:35:19,030 INFO L82 PathProgramCache]: Analyzing trace with hash -225951647, now seen corresponding path program 1 times [2020-09-18 02:35:19,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:35:19,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201980893] [2020-09-18 02:35:19,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:35:19,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:35:19,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:35:19,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201980893] [2020-09-18 02:35:19,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:35:19,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 02:35:19,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1867506951] [2020-09-18 02:35:19,204 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:35:19,205 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:35:19,207 INFO L274 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-09-18 02:35:19,207 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:35:19,207 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:35:19,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 02:35:19,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:35:19,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 02:35:19,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 02:35:19,210 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-09-18 02:35:19,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:35:19,259 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-09-18 02:35:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 02:35:19,260 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-18 02:35:19,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:35:19,269 INFO L225 Difference]: With dead ends: 1322 [2020-09-18 02:35:19,270 INFO L226 Difference]: Without dead ends: 1066 [2020-09-18 02:35:19,271 INFO L675 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 [2020-09-18 02:35:19,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-09-18 02:35:19,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-09-18 02:35:19,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-09-18 02:35:19,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-09-18 02:35:19,371 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-09-18 02:35:19,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:35:19,371 INFO L479 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-09-18 02:35:19,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 02:35:19,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-09-18 02:35:19,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-18 02:35:19,374 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:35:19,374 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 02:35:19,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-18 02:35:19,375 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:35:19,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:35:19,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1585409501, now seen corresponding path program 1 times [2020-09-18 02:35:19,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:35:19,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271245120] [2020-09-18 02:35:19,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:35:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:35:19,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:35:19,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271245120] [2020-09-18 02:35:19,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:35:19,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 02:35:19,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1356823609] [2020-09-18 02:35:19,485 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:35:19,486 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:35:19,488 INFO L274 McrAutomatonBuilder]: Finished intersection with 16 states and 18 transitions. [2020-09-18 02:35:19,488 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:35:19,519 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:35:19,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 02:35:19,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:35:19,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 02:35:19,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 02:35:19,520 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 5 states. [2020-09-18 02:35:19,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:35:19,585 INFO L93 Difference]: Finished difference Result 1306 states and 4508 transitions. [2020-09-18 02:35:19,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-18 02:35:19,585 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-18 02:35:19,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:35:19,591 INFO L225 Difference]: With dead ends: 1306 [2020-09-18 02:35:19,591 INFO L226 Difference]: Without dead ends: 634 [2020-09-18 02:35:19,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-18 02:35:19,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-09-18 02:35:19,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-09-18 02:35:19,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-09-18 02:35:19,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2060 transitions. [2020-09-18 02:35:19,617 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2060 transitions. Word has length 12 [2020-09-18 02:35:19,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:35:19,618 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 2060 transitions. [2020-09-18 02:35:19,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 02:35:19,618 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2060 transitions. [2020-09-18 02:35:19,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-18 02:35:19,620 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:35:19,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 02:35:19,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-18 02:35:19,620 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:35:19,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:35:19,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1322775957, now seen corresponding path program 1 times [2020-09-18 02:35:19,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:35:19,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477380819] [2020-09-18 02:35:19,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:35:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:35:19,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:35:19,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477380819] [2020-09-18 02:35:19,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:35:19,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 02:35:19,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1783055049] [2020-09-18 02:35:19,742 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:35:19,743 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:35:19,747 INFO L274 McrAutomatonBuilder]: Finished intersection with 28 states and 40 transitions. [2020-09-18 02:35:19,747 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:35:19,853 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:35:19,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 02:35:19,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:35:19,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 02:35:19,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 02:35:19,854 INFO L87 Difference]: Start difference. First operand 634 states and 2060 transitions. Second operand 5 states. [2020-09-18 02:35:19,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:35:19,906 INFO L93 Difference]: Finished difference Result 826 states and 2588 transitions. [2020-09-18 02:35:19,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-18 02:35:19,906 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-18 02:35:19,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:35:19,909 INFO L225 Difference]: With dead ends: 826 [2020-09-18 02:35:19,909 INFO L226 Difference]: Without dead ends: 346 [2020-09-18 02:35:19,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-18 02:35:19,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-09-18 02:35:19,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-09-18 02:35:19,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-09-18 02:35:19,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 1012 transitions. [2020-09-18 02:35:19,922 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 1012 transitions. Word has length 14 [2020-09-18 02:35:19,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:35:19,922 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 1012 transitions. [2020-09-18 02:35:19,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 02:35:19,923 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 1012 transitions. [2020-09-18 02:35:19,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-18 02:35:19,924 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:35:19,924 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 02:35:19,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-18 02:35:19,924 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:35:19,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:35:19,924 INFO L82 PathProgramCache]: Analyzing trace with hash 275175569, now seen corresponding path program 1 times [2020-09-18 02:35:19,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:35:19,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83761447] [2020-09-18 02:35:19,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:35:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:35:20,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:35:20,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83761447] [2020-09-18 02:35:20,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:35:20,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 02:35:20,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1120847614] [2020-09-18 02:35:20,014 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:35:20,016 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:35:20,021 INFO L274 McrAutomatonBuilder]: Finished intersection with 44 states and 70 transitions. [2020-09-18 02:35:20,021 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:35:20,117 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:35:20,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 02:35:20,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:35:20,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 02:35:20,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 02:35:20,118 INFO L87 Difference]: Start difference. First operand 346 states and 1012 transitions. Second operand 5 states. [2020-09-18 02:35:20,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:35:20,160 INFO L93 Difference]: Finished difference Result 430 states and 1224 transitions. [2020-09-18 02:35:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-18 02:35:20,161 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-18 02:35:20,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:35:20,162 INFO L225 Difference]: With dead ends: 430 [2020-09-18 02:35:20,162 INFO L226 Difference]: Without dead ends: 148 [2020-09-18 02:35:20,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-18 02:35:20,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-09-18 02:35:20,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-09-18 02:35:20,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-09-18 02:35:20,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 398 transitions. [2020-09-18 02:35:20,169 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 398 transitions. Word has length 16 [2020-09-18 02:35:20,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:35:20,169 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 398 transitions. [2020-09-18 02:35:20,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 02:35:20,169 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 398 transitions. [2020-09-18 02:35:20,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-18 02:35:20,170 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:35:20,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 02:35:20,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-18 02:35:20,171 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:35:20,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:35:20,171 INFO L82 PathProgramCache]: Analyzing trace with hash 355522076, now seen corresponding path program 1 times [2020-09-18 02:35:20,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:35:20,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851119694] [2020-09-18 02:35:20,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:35:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:35:20,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:35:20,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851119694] [2020-09-18 02:35:20,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:35:20,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 02:35:20,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1905911751] [2020-09-18 02:35:20,254 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:35:20,257 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:35:20,261 INFO L274 McrAutomatonBuilder]: Finished intersection with 26 states and 32 transitions. [2020-09-18 02:35:20,261 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:35:20,289 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:35:20,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 02:35:20,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:35:20,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 02:35:20,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 02:35:20,291 INFO L87 Difference]: Start difference. First operand 148 states and 398 transitions. Second operand 5 states. [2020-09-18 02:35:20,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:35:20,324 INFO L93 Difference]: Finished difference Result 124 states and 322 transitions. [2020-09-18 02:35:20,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-18 02:35:20,325 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-18 02:35:20,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:35:20,325 INFO L225 Difference]: With dead ends: 124 [2020-09-18 02:35:20,325 INFO L226 Difference]: Without dead ends: 0 [2020-09-18 02:35:20,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-18 02:35:20,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-18 02:35:20,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-18 02:35:20,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-18 02:35:20,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-18 02:35:20,343 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-09-18 02:35:20,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:35:20,343 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-18 02:35:20,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 02:35:20,344 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-18 02:35:20,344 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-18 02:35:20,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-18 02:35:20,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 02:35:20 BasicIcfg [2020-09-18 02:35:20,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-18 02:35:20,351 INFO L168 Benchmark]: Toolchain (without parser) took 5522.03 ms. Allocated memory was 145.2 MB in the beginning and 305.7 MB in the end (delta: 160.4 MB). Free memory was 100.3 MB in the beginning and 266.6 MB in the end (delta: -166.3 MB). Peak memory consumption was 134.4 MB. Max. memory is 7.1 GB. [2020-09-18 02:35:20,352 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-18 02:35:20,359 INFO L168 Benchmark]: CACSL2BoogieTranslator took 938.34 ms. Allocated memory was 145.2 MB in the beginning and 199.8 MB in the end (delta: 54.5 MB). Free memory was 99.7 MB in the beginning and 155.6 MB in the end (delta: -55.9 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-09-18 02:35:20,360 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.08 ms. Allocated memory is still 199.8 MB. Free memory was 155.6 MB in the beginning and 153.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-09-18 02:35:20,361 INFO L168 Benchmark]: Boogie Preprocessor took 33.07 ms. Allocated memory is still 199.8 MB. Free memory was 153.5 MB in the beginning and 152.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-18 02:35:20,362 INFO L168 Benchmark]: RCFGBuilder took 530.81 ms. Allocated memory is still 199.8 MB. Free memory was 152.1 MB in the beginning and 127.1 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-09-18 02:35:20,363 INFO L168 Benchmark]: TraceAbstraction took 3944.82 ms. Allocated memory was 199.8 MB in the beginning and 305.7 MB in the end (delta: 105.9 MB). Free memory was 126.4 MB in the beginning and 266.6 MB in the end (delta: -140.2 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. [2020-09-18 02:35:20,374 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 938.34 ms. Allocated memory was 145.2 MB in the beginning and 199.8 MB in the end (delta: 54.5 MB). Free memory was 99.7 MB in the beginning and 155.6 MB in the end (delta: -55.9 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 62.08 ms. Allocated memory is still 199.8 MB. Free memory was 155.6 MB in the beginning and 153.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.07 ms. Allocated memory is still 199.8 MB. Free memory was 153.5 MB in the beginning and 152.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 530.81 ms. Allocated memory is still 199.8 MB. Free memory was 152.1 MB in the beginning and 127.1 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3944.82 ms. Allocated memory was 199.8 MB in the beginning and 305.7 MB in the end (delta: 105.9 MB). Free memory was 126.4 MB in the beginning and 266.6 MB in the end (delta: -140.2 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 97 ProgramPointsBefore, 41 ProgramPointsAfterwards, 86 TransitionsBefore, 29 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 1043 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4485 CheckedPairsTotal, 67 TotalNumberOfCompositions - 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 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 173 SDtfs, 205 SDslu, 248 SDs, 0 SdLazy, 45 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred 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: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 2859 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...