/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 23:43:01,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 23:43:01,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 23:43:01,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 23:43:01,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 23:43:01,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 23:43:01,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 23:43:01,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 23:43:01,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 23:43:01,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 23:43:01,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 23:43:01,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 23:43:01,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 23:43:01,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 23:43:01,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 23:43:01,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 23:43:01,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 23:43:01,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 23:43:01,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 23:43:01,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 23:43:01,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 23:43:01,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 23:43:01,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 23:43:01,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 23:43:01,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-05 23:43:01,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-05 23:43:01,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-05 23:43:01,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-05 23:43:01,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-05 23:43:01,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-05 23:43:01,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 23:43:01,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 23:43:01,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 23:43:01,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 23:43:01,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 23:43:01,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 23:43:01,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 23:43:01,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 23:43:01,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 23:43:01,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 23:43:01,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 23:43:01,609 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-05 23:43:01,665 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 23:43:01,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 23:43:01,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 23:43:01,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 23:43:01,667 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 23:43:01,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 23:43:01,667 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 23:43:01,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 23:43:01,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 23:43:01,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 23:43:01,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 23:43:01,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 23:43:01,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 23:43:01,672 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 23:43:01,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 23:43:01,672 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 23:43:01,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 23:43:01,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 23:43:01,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 23:43:01,673 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 23:43:01,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 23:43:01,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 23:43:01,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 23:43:01,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-05 23:43:01,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 23:43:01,674 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 23:43:01,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 23:43:01,674 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-05 23:43:01,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 23:43:01,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 23:43:01,978 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 23:43:01,981 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 23:43:01,983 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 23:43:01,983 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 23:43:01,984 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.oepc.i [2020-10-05 23:43:02,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65f5fd7e3/74c89fbdf6b845cbbd56be905a717284/FLAGde73d8686 [2020-10-05 23:43:02,618 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 23:43:02,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_pso.oepc.i [2020-10-05 23:43:02,632 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65f5fd7e3/74c89fbdf6b845cbbd56be905a717284/FLAGde73d8686 [2020-10-05 23:43:02,884 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65f5fd7e3/74c89fbdf6b845cbbd56be905a717284 [2020-10-05 23:43:02,892 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 23:43:02,894 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 23:43:02,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 23:43:02,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 23:43:02,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 23:43:02,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:43:02" (1/1) ... [2020-10-05 23:43:02,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6df5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:43:02, skipping insertion in model container [2020-10-05 23:43:02,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:43:02" (1/1) ... [2020-10-05 23:43:02,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 23:43:02,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 23:43:03,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:43:03,408 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 23:43:03,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:43:03,569 INFO L208 MainTranslator]: Completed translation [2020-10-05 23:43:03,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:43:03 WrapperNode [2020-10-05 23:43:03,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 23:43:03,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 23:43:03,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 23:43:03,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 23:43:03,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:43:03" (1/1) ... [2020-10-05 23:43:03,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:43:03" (1/1) ... [2020-10-05 23:43:03,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 23:43:03,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 23:43:03,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 23:43:03,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 23:43:03,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:43:03" (1/1) ... [2020-10-05 23:43:03,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:43:03" (1/1) ... [2020-10-05 23:43:03,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:43:03" (1/1) ... [2020-10-05 23:43:03,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:43:03" (1/1) ... [2020-10-05 23:43:03,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:43:03" (1/1) ... [2020-10-05 23:43:03,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:43:03" (1/1) ... [2020-10-05 23:43:03,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:43:03" (1/1) ... [2020-10-05 23:43:03,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 23:43:03,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 23:43:03,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 23:43:03,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 23:43:03,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:43:03" (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 [2020-10-05 23:43:03,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 23:43:03,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 23:43:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 23:43:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 23:43:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 23:43:03,732 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 23:43:03,732 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 23:43:03,732 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 23:43:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 23:43:03,733 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 23:43:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 23:43:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 23:43:03,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 23:43:03,737 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 23:43:04,124 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 23:43:04,124 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 23:43:04,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:43:04 BoogieIcfgContainer [2020-10-05 23:43:04,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 23:43:04,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 23:43:04,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 23:43:04,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 23:43:04,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 11:43:02" (1/3) ... [2020-10-05 23:43:04,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7adbee1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:43:04, skipping insertion in model container [2020-10-05 23:43:04,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:43:03" (2/3) ... [2020-10-05 23:43:04,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7adbee1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:43:04, skipping insertion in model container [2020-10-05 23:43:04,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:43:04" (3/3) ... [2020-10-05 23:43:04,136 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_pso.oepc.i [2020-10-05 23:43:04,148 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 23:43:04,148 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-05 23:43:04,156 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 23:43:04,157 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 23:43:04,189 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,191 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,191 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,192 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,193 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,193 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,193 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,194 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,194 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,195 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,195 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,196 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,196 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,196 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,196 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,200 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,200 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,201 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,201 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,207 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,208 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,209 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,212 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,213 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:43:04,229 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-05 23:43:04,249 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 23:43:04,249 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 23:43:04,249 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-05 23:43:04,249 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 23:43:04,249 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 23:43:04,249 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 23:43:04,250 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 23:43:04,250 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 23:43:04,264 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-05 23:43:04,266 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-05 23:43:04,309 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-05 23:43:04,310 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:43:04,315 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 23:43:04,318 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-05 23:43:04,342 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-05 23:43:04,342 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:43:04,344 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 23:43:04,346 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-05 23:43:04,348 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-05 23:43:05,561 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2463 [2020-10-05 23:43:05,561 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-10-05 23:43:05,565 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-05 23:43:05,593 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-05 23:43:05,595 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-05 23:43:05,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 23:43:05,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:43:05,605 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:43:05,605 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:43:05,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:43:05,612 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-10-05 23:43:05,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:43:05,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017838803] [2020-10-05 23:43:05,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:43:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:43:05,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:43:05,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017838803] [2020-10-05 23:43:05,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:43:05,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:43:05,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551056562] [2020-10-05 23:43:05,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-05 23:43:05,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:43:05,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-05 23:43:05,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 23:43:05,839 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-05 23:43:05,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:43:05,874 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-05 23:43:05,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-05 23:43:05,876 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-05 23:43:05,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:43:05,894 INFO L225 Difference]: With dead ends: 362 [2020-10-05 23:43:05,895 INFO L226 Difference]: Without dead ends: 298 [2020-10-05 23:43:05,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 23:43:05,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-05 23:43:05,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-05 23:43:05,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-05 23:43:05,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-05 23:43:05,974 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-05 23:43:05,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:43:05,976 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-05 23:43:05,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-05 23:43:05,976 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-05 23:43:05,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 23:43:05,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:43:05,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:43:05,978 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 23:43:05,978 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:43:05,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:43:05,979 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-10-05 23:43:05,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:43:05,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496298497] [2020-10-05 23:43:05,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:43:06,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:43:06,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:43:06,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496298497] [2020-10-05 23:43:06,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:43:06,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:43:06,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656679559] [2020-10-05 23:43:06,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:43:06,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:43:06,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:43:06,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:43:06,163 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-05 23:43:06,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:43:06,200 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-05 23:43:06,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:43:06,201 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 23:43:06,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:43:06,205 INFO L225 Difference]: With dead ends: 330 [2020-10-05 23:43:06,205 INFO L226 Difference]: Without dead ends: 266 [2020-10-05 23:43:06,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:43:06,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-05 23:43:06,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-05 23:43:06,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-05 23:43:06,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-05 23:43:06,229 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-05 23:43:06,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:43:06,229 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-05 23:43:06,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:43:06,230 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-05 23:43:06,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 23:43:06,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:43:06,232 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:43:06,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 23:43:06,232 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:43:06,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:43:06,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 1 times [2020-10-05 23:43:06,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:43:06,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776535217] [2020-10-05 23:43:06,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:43:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:43:06,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:43:06,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776535217] [2020-10-05 23:43:06,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:43:06,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:43:06,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948506640] [2020-10-05 23:43:06,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 23:43:06,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:43:06,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 23:43:06,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:43:06,354 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-10-05 23:43:06,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:43:06,444 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-10-05 23:43:06,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 23:43:06,446 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-05 23:43:06,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:43:06,450 INFO L225 Difference]: With dead ends: 290 [2020-10-05 23:43:06,450 INFO L226 Difference]: Without dead ends: 242 [2020-10-05 23:43:06,453 INFO L675 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 [2020-10-05 23:43:06,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-05 23:43:06,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-10-05 23:43:06,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-05 23:43:06,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-10-05 23:43:06,485 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-10-05 23:43:06,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:43:06,486 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-10-05 23:43:06,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 23:43:06,486 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-10-05 23:43:06,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 23:43:06,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:43:06,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:43:06,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 23:43:06,494 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:43:06,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:43:06,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1654538757, now seen corresponding path program 1 times [2020-10-05 23:43:06,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:43:06,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946328948] [2020-10-05 23:43:06,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:43:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:43:06,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:43:06,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946328948] [2020-10-05 23:43:06,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:43:06,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:43:06,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447872219] [2020-10-05 23:43:06,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:43:06,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:43:06,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:43:06,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:43:06,598 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 4 states. [2020-10-05 23:43:06,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:43:06,630 INFO L93 Difference]: Finished difference Result 260 states and 694 transitions. [2020-10-05 23:43:06,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:43:06,631 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-05 23:43:06,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:43:06,633 INFO L225 Difference]: With dead ends: 260 [2020-10-05 23:43:06,633 INFO L226 Difference]: Without dead ends: 224 [2020-10-05 23:43:06,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:43:06,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-10-05 23:43:06,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2020-10-05 23:43:06,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-10-05 23:43:06,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 610 transitions. [2020-10-05 23:43:06,653 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 610 transitions. Word has length 11 [2020-10-05 23:43:06,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:43:06,653 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 610 transitions. [2020-10-05 23:43:06,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:43:06,654 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 610 transitions. [2020-10-05 23:43:06,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 23:43:06,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:43:06,660 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:43:06,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 23:43:06,662 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:43:06,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:43:06,662 INFO L82 PathProgramCache]: Analyzing trace with hash 368404844, now seen corresponding path program 1 times [2020-10-05 23:43:06,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:43:06,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839198054] [2020-10-05 23:43:06,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:43:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:43:06,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:43:06,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839198054] [2020-10-05 23:43:06,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:43:06,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:43:06,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103663668] [2020-10-05 23:43:06,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 23:43:06,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:43:06,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 23:43:06,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:43:06,742 INFO L87 Difference]: Start difference. First operand 224 states and 610 transitions. Second operand 5 states. [2020-10-05 23:43:06,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:43:06,788 INFO L93 Difference]: Finished difference Result 293 states and 773 transitions. [2020-10-05 23:43:06,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 23:43:06,789 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-05 23:43:06,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:43:06,790 INFO L225 Difference]: With dead ends: 293 [2020-10-05 23:43:06,790 INFO L226 Difference]: Without dead ends: 146 [2020-10-05 23:43:06,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-05 23:43:06,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-05 23:43:06,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-05 23:43:06,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-05 23:43:06,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2020-10-05 23:43:06,797 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 12 [2020-10-05 23:43:06,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:43:06,797 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2020-10-05 23:43:06,797 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 23:43:06,797 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2020-10-05 23:43:06,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 23:43:06,798 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:43:06,798 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:43:06,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 23:43:06,799 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:43:06,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:43:06,799 INFO L82 PathProgramCache]: Analyzing trace with hash 257080554, now seen corresponding path program 1 times [2020-10-05 23:43:06,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:43:06,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425342170] [2020-10-05 23:43:06,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:43:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:43:06,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:43:06,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425342170] [2020-10-05 23:43:06,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:43:06,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:43:06,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875903250] [2020-10-05 23:43:06,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 23:43:06,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:43:06,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 23:43:06,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:43:06,860 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand 5 states. [2020-10-05 23:43:06,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:43:06,917 INFO L93 Difference]: Finished difference Result 176 states and 423 transitions. [2020-10-05 23:43:06,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 23:43:06,917 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-05 23:43:06,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:43:06,918 INFO L225 Difference]: With dead ends: 176 [2020-10-05 23:43:06,918 INFO L226 Difference]: Without dead ends: 98 [2020-10-05 23:43:06,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-05 23:43:06,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-05 23:43:06,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-05 23:43:06,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-05 23:43:06,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 218 transitions. [2020-10-05 23:43:06,924 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 218 transitions. Word has length 13 [2020-10-05 23:43:06,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:43:06,925 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 218 transitions. [2020-10-05 23:43:06,925 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 23:43:06,925 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 218 transitions. [2020-10-05 23:43:06,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 23:43:06,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:43:06,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:43:06,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 23:43:06,927 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:43:06,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:43:06,927 INFO L82 PathProgramCache]: Analyzing trace with hash -647415272, now seen corresponding path program 1 times [2020-10-05 23:43:06,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:43:06,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443502966] [2020-10-05 23:43:06,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:43:06,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:43:06,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:43:06,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443502966] [2020-10-05 23:43:06,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:43:06,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:43:06,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969597926] [2020-10-05 23:43:06,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 23:43:06,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:43:06,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 23:43:06,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:43:06,981 INFO L87 Difference]: Start difference. First operand 98 states and 218 transitions. Second operand 5 states. [2020-10-05 23:43:07,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:43:07,032 INFO L93 Difference]: Finished difference Result 86 states and 186 transitions. [2020-10-05 23:43:07,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 23:43:07,033 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-05 23:43:07,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:43:07,033 INFO L225 Difference]: With dead ends: 86 [2020-10-05 23:43:07,033 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 23:43:07,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-05 23:43:07,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 23:43:07,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 23:43:07,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 23:43:07,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 23:43:07,035 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-05 23:43:07,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:43:07,035 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 23:43:07,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 23:43:07,035 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 23:43:07,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 23:43:07,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 23:43:07,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 11:43:07 BasicIcfg [2020-10-05 23:43:07,040 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 23:43:07,043 INFO L168 Benchmark]: Toolchain (without parser) took 4148.01 ms. Allocated memory was 140.0 MB in the beginning and 246.4 MB in the end (delta: 106.4 MB). Free memory was 101.3 MB in the beginning and 210.4 MB in the end (delta: -109.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-05 23:43:07,044 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-05 23:43:07,045 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.95 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.1 MB in the beginning and 157.8 MB in the end (delta: -56.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-10-05 23:43:07,046 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.36 ms. Allocated memory is still 202.9 MB. Free memory was 157.8 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-05 23:43:07,047 INFO L168 Benchmark]: Boogie Preprocessor took 28.98 ms. Allocated memory is still 202.9 MB. Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-05 23:43:07,047 INFO L168 Benchmark]: RCFGBuilder took 470.83 ms. Allocated memory is still 202.9 MB. Free memory was 154.5 MB in the beginning and 131.3 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-10-05 23:43:07,048 INFO L168 Benchmark]: TraceAbstraction took 2911.40 ms. Allocated memory was 202.9 MB in the beginning and 246.4 MB in the end (delta: 43.5 MB). Free memory was 131.3 MB in the beginning and 210.4 MB in the end (delta: -79.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-05 23:43:07,052 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 673.95 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.1 MB in the beginning and 157.8 MB in the end (delta: -56.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.36 ms. Allocated memory is still 202.9 MB. Free memory was 157.8 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.98 ms. Allocated memory is still 202.9 MB. Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 470.83 ms. Allocated memory is still 202.9 MB. Free memory was 154.5 MB in the beginning and 131.3 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2911.40 ms. Allocated memory was 202.9 MB in the beginning and 246.4 MB in the end (delta: 43.5 MB). Free memory was 131.3 MB in the beginning and 210.4 MB in the end (delta: -79.1 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 LbeTime: 1.2s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 668 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2463 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 151 SDtfs, 168 SDslu, 225 SDs, 0 SdLazy, 66 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 2725 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...