/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-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:23:24,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:23:24,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:23:24,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:23:24,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:23:24,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:23:24,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:23:24,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:23:24,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:23:24,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:23:24,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:23:24,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:23:24,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:23:24,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:23:24,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:23:24,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:23:24,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:23:24,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:23:24,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:23:24,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:23:24,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:23:24,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:23:24,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:23:24,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:23:24,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 02:23:24,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 02:23:24,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 02:23:24,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 02:23:24,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 02:23:24,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 02:23:24,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:23:24,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:23:24,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:23:24,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:23:24,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:23:24,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:23:24,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:23:24,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:23:24,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:23:24,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:23:24,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:23:24,289 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-SP.epf [2020-10-22 02:23:24,312 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:23:24,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:23:24,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:23:24,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:23:24,314 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:23:24,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:23:24,314 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:23:24,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:23:24,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:23:24,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:23:24,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:23:24,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:23:24,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:23:24,316 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:23:24,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:23:24,316 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:23:24,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:23:24,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:23:24,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:23:24,317 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:23:24,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:23:24,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:23:24,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:23:24,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:23:24,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:23:24,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:23:24,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:23:24,318 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:23:24,319 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:23:24,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:23:24,319 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:23:24,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:23:24,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:23:24,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:23:24,628 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:23:24,629 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:23:24,630 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i [2020-10-22 02:23:24,706 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c3b2ea2c/6f500775fe754deb9528d385dfaa46d3/FLAG9d68958ba [2020-10-22 02:23:25,240 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:23:25,240 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i [2020-10-22 02:23:25,254 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c3b2ea2c/6f500775fe754deb9528d385dfaa46d3/FLAG9d68958ba [2020-10-22 02:23:25,536 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c3b2ea2c/6f500775fe754deb9528d385dfaa46d3 [2020-10-22 02:23:25,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:23:25,553 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:23:25,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:23:25,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:23:25,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:23:25,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:23:25" (1/1) ... [2020-10-22 02:23:25,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d09843d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:25, skipping insertion in model container [2020-10-22 02:23:25,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:23:25" (1/1) ... [2020-10-22 02:23:25,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:23:25,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:23:26,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:23:26,142 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:23:26,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:23:26,262 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:23:26,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:26 WrapperNode [2020-10-22 02:23:26,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:23:26,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:23:26,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:23:26,264 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:23:26,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:26" (1/1) ... [2020-10-22 02:23:26,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:26" (1/1) ... [2020-10-22 02:23:26,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:23:26,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:23:26,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:23:26,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:23:26,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:26" (1/1) ... [2020-10-22 02:23:26,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:26" (1/1) ... [2020-10-22 02:23:26,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:26" (1/1) ... [2020-10-22 02:23:26,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:26" (1/1) ... [2020-10-22 02:23:26,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:26" (1/1) ... [2020-10-22 02:23:26,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:26" (1/1) ... [2020-10-22 02:23:26,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:26" (1/1) ... [2020-10-22 02:23:26,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:23:26,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:23:26,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:23:26,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:23:26,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:23:26,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:23:26,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:23:26,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:23:26,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:23:26,413 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:23:26,414 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:23:26,414 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:23:26,414 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:23:26,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:23:26,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:23:26,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:23:26,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:23:26,417 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:23:26,799 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:23:26,799 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:23:26,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:23:26 BoogieIcfgContainer [2020-10-22 02:23:26,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:23:26,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:23:26,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:23:26,807 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:23:26,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:23:25" (1/3) ... [2020-10-22 02:23:26,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50765684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:23:26, skipping insertion in model container [2020-10-22 02:23:26,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:26" (2/3) ... [2020-10-22 02:23:26,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50765684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:23:26, skipping insertion in model container [2020-10-22 02:23:26,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:23:26" (3/3) ... [2020-10-22 02:23:26,811 INFO L111 eAbstractionObserver]: Analyzing ICFG thin000_pso.opt.i [2020-10-22 02:23:26,821 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:23:26,821 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:23:26,829 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:23:26,829 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:23:26,854 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:26,855 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:26,855 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:26,855 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:26,856 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:26,856 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:26,857 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:26,857 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:26,857 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:26,857 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:26,858 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:26,858 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:26,862 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:26,863 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:26,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:26,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:26,870 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:26,870 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:26,871 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:26,871 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:26,873 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:23:26,888 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-22 02:23:26,909 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:23:26,909 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:23:26,910 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:23:26,910 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:23:26,910 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:23:26,910 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:23:26,910 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:23:26,911 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:23:26,924 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:23:26,925 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 140 flow [2020-10-22 02:23:26,928 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 140 flow [2020-10-22 02:23:26,930 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 140 flow [2020-10-22 02:23:26,975 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2020-10-22 02:23:26,975 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:23:26,980 INFO L80 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-10-22 02:23:26,984 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-10-22 02:23:28,162 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-22 02:23:28,447 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-22 02:23:28,565 INFO L131 LiptonReduction]: Checked pairs total: 1892 [2020-10-22 02:23:28,565 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-10-22 02:23:28,574 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-10-22 02:23:28,591 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-10-22 02:23:28,593 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-10-22 02:23:28,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-22 02:23:28,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:28,628 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-22 02:23:28,629 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:28,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:28,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1281927427, now seen corresponding path program 1 times [2020-10-22 02:23:28,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:28,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565983777] [2020-10-22 02:23:28,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:28,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:23:28,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565983777] [2020-10-22 02:23:28,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:28,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:23:28,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1504075320] [2020-10-22 02:23:28,856 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:28,859 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:28,872 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-10-22 02:23:28,872 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:28,876 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:23:28,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 02:23:28,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:28,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 02:23:28,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:23:28,891 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-10-22 02:23:28,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:28,902 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-10-22 02:23:28,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 02:23:28,903 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-10-22 02:23:28,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:28,914 INFO L225 Difference]: With dead ends: 90 [2020-10-22 02:23:28,914 INFO L226 Difference]: Without dead ends: 74 [2020-10-22 02:23:28,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:23:28,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-22 02:23:28,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-22 02:23:28,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-22 02:23:28,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-10-22 02:23:28,962 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-10-22 02:23:28,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:28,963 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-10-22 02:23:28,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 02:23:28,963 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-10-22 02:23:28,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-22 02:23:28,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:28,964 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:23:28,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:23:28,965 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:28,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:28,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1085050971, now seen corresponding path program 1 times [2020-10-22 02:23:28,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:28,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889389708] [2020-10-22 02:23:28,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:29,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:23:29,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889389708] [2020-10-22 02:23:29,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:29,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:23:29,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [603541406] [2020-10-22 02:23:29,129 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:29,130 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:29,131 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-22 02:23:29,132 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:29,132 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:23:29,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:23:29,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:29,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:23:29,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:23:29,135 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 5 states. [2020-10-22 02:23:29,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:29,206 INFO L93 Difference]: Finished difference Result 82 states and 166 transitions. [2020-10-22 02:23:29,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 02:23:29,207 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-22 02:23:29,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:29,208 INFO L225 Difference]: With dead ends: 82 [2020-10-22 02:23:29,208 INFO L226 Difference]: Without dead ends: 66 [2020-10-22 02:23:29,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:23:29,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-22 02:23:29,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-22 02:23:29,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-22 02:23:29,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 138 transitions. [2020-10-22 02:23:29,219 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 138 transitions. Word has length 7 [2020-10-22 02:23:29,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:29,220 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 138 transitions. [2020-10-22 02:23:29,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:23:29,220 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 138 transitions. [2020-10-22 02:23:29,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 02:23:29,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:29,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:23:29,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:23:29,221 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:29,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:29,222 INFO L82 PathProgramCache]: Analyzing trace with hash 722349434, now seen corresponding path program 1 times [2020-10-22 02:23:29,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:29,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367062496] [2020-10-22 02:23:29,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:29,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:23:29,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367062496] [2020-10-22 02:23:29,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:29,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:23:29,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [255946779] [2020-10-22 02:23:29,314 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:29,315 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:29,317 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 10 transitions. [2020-10-22 02:23:29,318 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:29,336 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:23:29,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:23:29,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:29,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:23:29,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:23:29,338 INFO L87 Difference]: Start difference. First operand 66 states and 138 transitions. Second operand 5 states. [2020-10-22 02:23:29,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:29,403 INFO L93 Difference]: Finished difference Result 72 states and 142 transitions. [2020-10-22 02:23:29,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 02:23:29,404 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-10-22 02:23:29,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:29,405 INFO L225 Difference]: With dead ends: 72 [2020-10-22 02:23:29,405 INFO L226 Difference]: Without dead ends: 60 [2020-10-22 02:23:29,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:23:29,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-22 02:23:29,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-22 02:23:29,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-22 02:23:29,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 122 transitions. [2020-10-22 02:23:29,415 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 122 transitions. Word has length 8 [2020-10-22 02:23:29,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:29,415 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 122 transitions. [2020-10-22 02:23:29,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:23:29,415 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 122 transitions. [2020-10-22 02:23:29,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 02:23:29,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:29,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:23:29,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:23:29,417 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:29,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:29,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1670451402, now seen corresponding path program 1 times [2020-10-22 02:23:29,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:29,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088508755] [2020-10-22 02:23:29,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:29,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:23:29,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088508755] [2020-10-22 02:23:29,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:29,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:23:29,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [227056974] [2020-10-22 02:23:29,483 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:29,484 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:29,486 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 22 transitions. [2020-10-22 02:23:29,486 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:29,567 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:23:29,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:23:29,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:29,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:23:29,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:23:29,569 INFO L87 Difference]: Start difference. First operand 60 states and 122 transitions. Second operand 5 states. [2020-10-22 02:23:29,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:29,644 INFO L93 Difference]: Finished difference Result 75 states and 147 transitions. [2020-10-22 02:23:29,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:23:29,645 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-22 02:23:29,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:29,646 INFO L225 Difference]: With dead ends: 75 [2020-10-22 02:23:29,646 INFO L226 Difference]: Without dead ends: 42 [2020-10-22 02:23:29,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:23:29,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-22 02:23:29,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-22 02:23:29,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-22 02:23:29,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 76 transitions. [2020-10-22 02:23:29,656 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 76 transitions. Word has length 9 [2020-10-22 02:23:29,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:29,656 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 76 transitions. [2020-10-22 02:23:29,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:23:29,657 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 76 transitions. [2020-10-22 02:23:29,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 02:23:29,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:29,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:23:29,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:23:29,658 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:29,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:29,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1631439828, now seen corresponding path program 1 times [2020-10-22 02:23:29,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:29,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123207476] [2020-10-22 02:23:29,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:29,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:23:29,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123207476] [2020-10-22 02:23:29,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:29,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:23:29,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [657361055] [2020-10-22 02:23:29,728 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:29,729 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:29,730 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 24 transitions. [2020-10-22 02:23:29,731 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:29,811 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:23:29,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:23:29,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:29,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:23:29,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:23:29,812 INFO L87 Difference]: Start difference. First operand 42 states and 76 transitions. Second operand 5 states. [2020-10-22 02:23:29,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:29,850 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2020-10-22 02:23:29,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:23:29,851 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-22 02:23:29,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:29,851 INFO L225 Difference]: With dead ends: 36 [2020-10-22 02:23:29,851 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:23:29,852 INFO L677 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 [2020-10-22 02:23:29,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:23:29,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:23:29,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:23:29,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:23:29,852 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-10-22 02:23:29,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:29,853 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:23:29,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:23:29,853 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:23:29,853 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:23:29,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:23:29,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:23:29 BasicIcfg [2020-10-22 02:23:29,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:23:29,859 INFO L168 Benchmark]: Toolchain (without parser) took 4311.12 ms. Allocated memory was 139.5 MB in the beginning and 249.0 MB in the end (delta: 109.6 MB). Free memory was 101.0 MB in the beginning and 188.0 MB in the end (delta: -87.0 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:29,859 INFO L168 Benchmark]: CDTParser took 3.27 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-22 02:23:29,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.82 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.2 MB in the beginning and 157.5 MB in the end (delta: -57.3 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:29,861 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.20 ms. Allocated memory is still 202.9 MB. Free memory was 157.5 MB in the beginning and 155.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:29,862 INFO L168 Benchmark]: Boogie Preprocessor took 27.21 ms. Allocated memory is still 202.9 MB. Free memory was 154.8 MB in the beginning and 153.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:29,863 INFO L168 Benchmark]: RCFGBuilder took 460.68 ms. Allocated memory is still 202.9 MB. Free memory was 153.5 MB in the beginning and 131.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:29,864 INFO L168 Benchmark]: TraceAbstraction took 3053.20 ms. Allocated memory was 202.9 MB in the beginning and 249.0 MB in the end (delta: 46.1 MB). Free memory was 131.5 MB in the beginning and 188.0 MB in the end (delta: -56.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-22 02:23:29,868 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.27 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 708.82 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.2 MB in the beginning and 157.5 MB in the end (delta: -57.3 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.20 ms. Allocated memory is still 202.9 MB. Free memory was 157.5 MB in the beginning and 155.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.21 ms. Allocated memory is still 202.9 MB. Free memory was 154.8 MB in the beginning and 153.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 460.68 ms. Allocated memory is still 202.9 MB. Free memory was 153.5 MB in the beginning and 131.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3053.20 ms. Allocated memory was 202.9 MB in the beginning and 249.0 MB in the end (delta: 46.1 MB). Free memory was 131.5 MB in the beginning and 188.0 MB in the end (delta: -56.5 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 449 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 23 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 69 PlacesBefore, 23 PlacesAfterwards, 65 TransitionsBefore, 17 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 1892 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 71 SDtfs, 72 SDslu, 103 SDs, 0 SdLazy, 59 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 1144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...