/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:18:35,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:18:35,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:18:35,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:18:35,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:18:35,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:18:35,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:18:35,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:18:35,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:18:35,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:18:35,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:18:35,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:18:35,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:18:35,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:18:35,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:18:35,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:18:35,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:18:35,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:18:35,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:18:35,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:18:35,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:18:35,314 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:18:35,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:18:35,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:18:35,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 11:18:35,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 11:18:35,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 11:18:35,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 11:18:35,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 11:18:35,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 11:18:35,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:18:35,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:18:35,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:18:35,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:18:35,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:18:35,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:18:35,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:18:35,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:18:35,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:18:35,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:18:35,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:18:35,328 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 11:18:35,352 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:18:35,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:18:35,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:18:35,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:18:35,354 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:18:35,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:18:35,354 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:18:35,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:18:35,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:18:35,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:18:35,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:18:35,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:18:35,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:18:35,355 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:18:35,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:18:35,356 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:18:35,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:18:35,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:18:35,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:18:35,357 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:18:35,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:18:35,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:18:35,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:18:35,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 11:18:35,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:18:35,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:18:35,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:18:35,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:18:35,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 11:18:35,358 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 11:18:35,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:18:35,671 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:18:35,675 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:18:35,678 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:18:35,679 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:18:35,680 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-10-16 11:18:35,744 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b7af1284f/a5397bf9d44d4723823fd76c2a1b2ce3/FLAG613daa88b [2020-10-16 11:18:36,237 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:18:36,238 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-10-16 11:18:36,255 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b7af1284f/a5397bf9d44d4723823fd76c2a1b2ce3/FLAG613daa88b [2020-10-16 11:18:36,603 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b7af1284f/a5397bf9d44d4723823fd76c2a1b2ce3 [2020-10-16 11:18:36,612 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:18:36,614 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:18:36,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:18:36,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:18:36,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:18:36,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:18:36" (1/1) ... [2020-10-16 11:18:36,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40d9a01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:36, skipping insertion in model container [2020-10-16 11:18:36,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:18:36" (1/1) ... [2020-10-16 11:18:36,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:18:36,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:18:37,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:18:37,144 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:18:37,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:18:37,299 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:18:37,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:37 WrapperNode [2020-10-16 11:18:37,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:18:37,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:18:37,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:18:37,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:18:37,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:37" (1/1) ... [2020-10-16 11:18:37,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:37" (1/1) ... [2020-10-16 11:18:37,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:18:37,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:18:37,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:18:37,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:18:37,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:37" (1/1) ... [2020-10-16 11:18:37,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:37" (1/1) ... [2020-10-16 11:18:37,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:37" (1/1) ... [2020-10-16 11:18:37,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:37" (1/1) ... [2020-10-16 11:18:37,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:37" (1/1) ... [2020-10-16 11:18:37,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:37" (1/1) ... [2020-10-16 11:18:37,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:37" (1/1) ... [2020-10-16 11:18:37,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:18:37,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:18:37,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:18:37,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:18:37,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:37" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:18:37,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:18:37,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 11:18:37,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:18:37,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:18:37,465 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 11:18:37,466 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 11:18:37,466 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 11:18:37,466 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 11:18:37,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 11:18:37,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:18:37,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:18:37,469 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:18:37,828 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:18:37,828 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 11:18:37,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:18:37 BoogieIcfgContainer [2020-10-16 11:18:37,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:18:37,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:18:37,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:18:37,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:18:37,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:18:36" (1/3) ... [2020-10-16 11:18:37,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@674d4819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:18:37, skipping insertion in model container [2020-10-16 11:18:37,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:37" (2/3) ... [2020-10-16 11:18:37,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@674d4819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:18:37, skipping insertion in model container [2020-10-16 11:18:37,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:18:37" (3/3) ... [2020-10-16 11:18:37,851 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.oepc.i [2020-10-16 11:18:37,863 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:18:37,864 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:18:37,870 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 11:18:37,871 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:18:37,897 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:37,897 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:37,897 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:37,898 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:37,899 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:37,899 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:37,899 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:37,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:37,900 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:37,900 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:37,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:37,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:37,905 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:37,905 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:37,905 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:37,906 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:37,912 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:37,912 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:37,913 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:37,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:37,915 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:18:37,927 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 11:18:37,948 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:18:37,948 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:18:37,948 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 11:18:37,949 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:18:37,949 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:18:37,949 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:18:37,949 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:18:37,949 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:18:37,961 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 11:18:37,963 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 55 transitions, 120 flow [2020-10-16 11:18:37,966 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 55 transitions, 120 flow [2020-10-16 11:18:37,967 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 120 flow [2020-10-16 11:18:38,009 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2020-10-16 11:18:38,010 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 11:18:38,015 INFO L80 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 53 events. 2/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-10-16 11:18:38,017 INFO L117 LiptonReduction]: Number of co-enabled transitions 672 [2020-10-16 11:18:39,369 INFO L132 LiptonReduction]: Checked pairs total: 1289 [2020-10-16 11:18:39,369 INFO L134 LiptonReduction]: Total number of compositions: 51 [2020-10-16 11:18:39,377 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-10-16 11:18:39,392 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-16 11:18:39,394 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-16 11:18:39,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 11:18:39,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:39,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 11:18:39,402 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:39,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:39,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1814584925, now seen corresponding path program 1 times [2020-10-16 11:18:39,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:39,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933587499] [2020-10-16 11:18:39,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:39,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:39,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933587499] [2020-10-16 11:18:39,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:39,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:18:39,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684119401] [2020-10-16 11:18:39,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:18:39,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:39,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:18:39,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:18:39,668 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-10-16 11:18:39,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:39,707 INFO L93 Difference]: Finished difference Result 70 states and 149 transitions. [2020-10-16 11:18:39,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:18:39,709 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-16 11:18:39,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:39,726 INFO L225 Difference]: With dead ends: 70 [2020-10-16 11:18:39,727 INFO L226 Difference]: Without dead ends: 54 [2020-10-16 11:18:39,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:18:39,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-16 11:18:39,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-16 11:18:39,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-16 11:18:39,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 109 transitions. [2020-10-16 11:18:39,786 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 109 transitions. Word has length 6 [2020-10-16 11:18:39,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:39,787 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 109 transitions. [2020-10-16 11:18:39,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:18:39,787 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2020-10-16 11:18:39,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-16 11:18:39,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:39,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:39,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:18:39,789 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:39,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:39,790 INFO L82 PathProgramCache]: Analyzing trace with hash 417538412, now seen corresponding path program 1 times [2020-10-16 11:18:39,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:39,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716443490] [2020-10-16 11:18:39,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:39,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:39,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716443490] [2020-10-16 11:18:39,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:39,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:18:39,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857097514] [2020-10-16 11:18:39,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:18:39,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:39,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:18:39,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:18:39,888 INFO L87 Difference]: Start difference. First operand 54 states and 109 transitions. Second operand 4 states. [2020-10-16 11:18:39,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:39,911 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-10-16 11:18:39,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:18:39,912 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-16 11:18:39,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:39,913 INFO L225 Difference]: With dead ends: 60 [2020-10-16 11:18:39,913 INFO L226 Difference]: Without dead ends: 36 [2020-10-16 11:18:39,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:18:39,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-16 11:18:39,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-16 11:18:39,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-16 11:18:39,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-10-16 11:18:39,920 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 7 [2020-10-16 11:18:39,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:39,920 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-10-16 11:18:39,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:18:39,920 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-10-16 11:18:39,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:18:39,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:39,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:39,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:18:39,922 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:39,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:39,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1840071362, now seen corresponding path program 1 times [2020-10-16 11:18:39,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:39,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450499807] [2020-10-16 11:18:39,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:40,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:40,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450499807] [2020-10-16 11:18:40,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:40,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:18:40,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871922540] [2020-10-16 11:18:40,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:18:40,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:40,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:18:40,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:18:40,058 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 4 states. [2020-10-16 11:18:40,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:40,085 INFO L93 Difference]: Finished difference Result 39 states and 61 transitions. [2020-10-16 11:18:40,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:18:40,086 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 11:18:40,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:40,086 INFO L225 Difference]: With dead ends: 39 [2020-10-16 11:18:40,087 INFO L226 Difference]: Without dead ends: 29 [2020-10-16 11:18:40,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:18:40,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-16 11:18:40,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-16 11:18:40,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-16 11:18:40,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 44 transitions. [2020-10-16 11:18:40,091 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 44 transitions. Word has length 9 [2020-10-16 11:18:40,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:40,092 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 44 transitions. [2020-10-16 11:18:40,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:18:40,092 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2020-10-16 11:18:40,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 11:18:40,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:40,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:40,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:18:40,093 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:40,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:40,094 INFO L82 PathProgramCache]: Analyzing trace with hash 419248155, now seen corresponding path program 1 times [2020-10-16 11:18:40,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:40,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566345428] [2020-10-16 11:18:40,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:40,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:40,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566345428] [2020-10-16 11:18:40,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:40,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:18:40,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673876212] [2020-10-16 11:18:40,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:18:40,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:40,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:18:40,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:18:40,147 INFO L87 Difference]: Start difference. First operand 29 states and 44 transitions. Second operand 5 states. [2020-10-16 11:18:40,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:40,182 INFO L93 Difference]: Finished difference Result 27 states and 38 transitions. [2020-10-16 11:18:40,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:18:40,183 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-16 11:18:40,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:40,183 INFO L225 Difference]: With dead ends: 27 [2020-10-16 11:18:40,184 INFO L226 Difference]: Without dead ends: 22 [2020-10-16 11:18:40,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:18:40,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-16 11:18:40,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-16 11:18:40,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-16 11:18:40,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-10-16 11:18:40,188 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 10 [2020-10-16 11:18:40,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:40,188 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-10-16 11:18:40,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:18:40,188 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-10-16 11:18:40,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:18:40,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:40,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:40,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:18:40,190 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:40,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:40,190 INFO L82 PathProgramCache]: Analyzing trace with hash -830614075, now seen corresponding path program 1 times [2020-10-16 11:18:40,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:40,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902217143] [2020-10-16 11:18:40,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:40,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:40,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902217143] [2020-10-16 11:18:40,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:40,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:18:40,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532261475] [2020-10-16 11:18:40,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:18:40,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:40,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:18:40,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:18:40,219 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 3 states. [2020-10-16 11:18:40,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:40,224 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-10-16 11:18:40,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:18:40,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-16 11:18:40,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:40,225 INFO L225 Difference]: With dead ends: 21 [2020-10-16 11:18:40,225 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:18:40,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:18:40,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:18:40,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:18:40,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:18:40,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:18:40,226 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-16 11:18:40,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:40,227 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:18:40,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:18:40,227 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:18:40,227 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:18:40,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:18:40,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:18:40 BasicIcfg [2020-10-16 11:18:40,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:18:40,234 INFO L168 Benchmark]: Toolchain (without parser) took 3619.44 ms. Allocated memory was 138.9 MB in the beginning and 250.1 MB in the end (delta: 111.1 MB). Free memory was 100.1 MB in the beginning and 157.0 MB in the end (delta: -56.8 MB). Peak memory consumption was 54.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:40,235 INFO L168 Benchmark]: CDTParser took 1.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 11:18:40,236 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.50 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 99.9 MB in the beginning and 159.1 MB in the end (delta: -59.1 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:40,237 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.63 ms. Allocated memory is still 201.9 MB. Free memory was 159.1 MB in the beginning and 157.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:40,238 INFO L168 Benchmark]: Boogie Preprocessor took 24.88 ms. Allocated memory is still 201.9 MB. Free memory was 157.1 MB in the beginning and 155.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:40,239 INFO L168 Benchmark]: RCFGBuilder took 451.51 ms. Allocated memory is still 201.9 MB. Free memory was 155.7 MB in the beginning and 135.5 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:40,240 INFO L168 Benchmark]: TraceAbstraction took 2390.80 ms. Allocated memory was 201.9 MB in the beginning and 250.1 MB in the end (delta: 48.2 MB). Free memory was 135.5 MB in the beginning and 157.0 MB in the end (delta: -21.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:40,244 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 686.50 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 99.9 MB in the beginning and 159.1 MB in the end (delta: -59.1 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.63 ms. Allocated memory is still 201.9 MB. Free memory was 159.1 MB in the beginning and 157.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.88 ms. Allocated memory is still 201.9 MB. Free memory was 157.1 MB in the beginning and 155.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 451.51 ms. Allocated memory is still 201.9 MB. Free memory was 155.7 MB in the beginning and 135.5 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2390.80 ms. Allocated memory was 201.9 MB in the beginning and 250.1 MB in the end (delta: 48.2 MB). Free memory was 135.5 MB in the beginning and 157.0 MB in the end (delta: -21.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 502 VarBasedMoverChecksPositive, 28 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 27 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 36 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 60 PlacesBefore, 22 PlacesAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 51 TotalNumberOfCompositions, 1289 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 59 SDtfs, 43 SDslu, 54 SDs, 0 SdLazy, 44 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 969 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...