/usr/bin/java -Xmx16000000000 -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/safe009_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 12:54:59,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 12:54:59,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 12:54:59,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 12:54:59,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 12:54:59,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 12:54:59,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 12:54:59,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 12:54:59,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 12:54:59,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 12:54:59,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 12:54:59,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 12:54:59,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 12:54:59,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 12:54:59,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 12:54:59,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 12:54:59,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 12:54:59,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 12:54:59,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 12:54:59,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 12:54:59,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 12:54:59,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 12:54:59,770 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 12:54:59,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 12:54:59,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-09 12:54:59,781 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-09 12:54:59,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-09 12:54:59,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-09 12:54:59,783 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-09 12:54:59,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-09 12:54:59,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 12:54:59,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 12:54:59,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 12:54:59,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 12:54:59,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 12:54:59,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 12:54:59,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 12:54:59,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 12:54:59,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 12:54:59,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 12:54:59,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 12:54:59,795 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-09 12:54:59,833 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 12:54:59,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 12:54:59,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 12:54:59,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 12:54:59,835 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 12:54:59,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 12:54:59,835 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 12:54:59,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 12:54:59,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 12:54:59,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 12:54:59,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 12:54:59,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 12:54:59,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 12:54:59,837 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 12:54:59,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 12:54:59,838 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 12:54:59,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 12:54:59,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 12:54:59,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 12:54:59,839 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 12:54:59,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 12:54:59,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 12:54:59,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 12:54:59,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 12:54:59,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 12:54:59,840 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-09 12:54:59,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 12:54:59,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-09 12:54:59,840 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-09 12:54:59,841 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 12:55:00,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 12:55:00,121 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 12:55:00,125 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 12:55:00,126 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 12:55:00,129 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 12:55:00,129 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i [2020-10-09 12:55:00,191 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cd3e58fb/5de0ce3d20e342589371502b0cd5d270/FLAG288b6c2d2 [2020-10-09 12:55:00,645 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 12:55:00,646 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i [2020-10-09 12:55:00,660 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cd3e58fb/5de0ce3d20e342589371502b0cd5d270/FLAG288b6c2d2 [2020-10-09 12:55:01,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cd3e58fb/5de0ce3d20e342589371502b0cd5d270 [2020-10-09 12:55:01,027 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 12:55:01,029 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 12:55:01,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 12:55:01,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 12:55:01,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 12:55:01,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 12:55:01" (1/1) ... [2020-10-09 12:55:01,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d61d9ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:55:01, skipping insertion in model container [2020-10-09 12:55:01,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 12:55:01" (1/1) ... [2020-10-09 12:55:01,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 12:55:01,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 12:55:01,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 12:55:01,506 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 12:55:01,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 12:55:01,638 INFO L208 MainTranslator]: Completed translation [2020-10-09 12:55:01,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:55:01 WrapperNode [2020-10-09 12:55:01,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 12:55:01,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 12:55:01,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 12:55:01,641 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 12:55:01,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:55:01" (1/1) ... [2020-10-09 12:55:01,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:55:01" (1/1) ... [2020-10-09 12:55:01,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 12:55:01,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 12:55:01,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 12:55:01,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 12:55:01,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:55:01" (1/1) ... [2020-10-09 12:55:01,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:55:01" (1/1) ... [2020-10-09 12:55:01,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:55:01" (1/1) ... [2020-10-09 12:55:01,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:55:01" (1/1) ... [2020-10-09 12:55:01,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:55:01" (1/1) ... [2020-10-09 12:55:01,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:55:01" (1/1) ... [2020-10-09 12:55:01,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:55:01" (1/1) ... [2020-10-09 12:55:01,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 12:55:01,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 12:55:01,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 12:55:01,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 12:55:01,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:55:01" (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 [2020-10-09 12:55:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 12:55:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-09 12:55:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 12:55:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 12:55:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-09 12:55:01,797 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-09 12:55:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-09 12:55:01,797 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-09 12:55:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-09 12:55:01,797 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-09 12:55:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-09 12:55:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 12:55:01,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 12:55:01,800 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 12:55:02,110 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 12:55:02,111 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-09 12:55:02,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 12:55:02 BoogieIcfgContainer [2020-10-09 12:55:02,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 12:55:02,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 12:55:02,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 12:55:02,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 12:55:02,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 12:55:01" (1/3) ... [2020-10-09 12:55:02,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d63203f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 12:55:02, skipping insertion in model container [2020-10-09 12:55:02,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:55:01" (2/3) ... [2020-10-09 12:55:02,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d63203f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 12:55:02, skipping insertion in model container [2020-10-09 12:55:02,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 12:55:02" (3/3) ... [2020-10-09 12:55:02,122 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_tso.opt.i [2020-10-09 12:55:02,133 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-09 12:55:02,134 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 12:55:02,140 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-09 12:55:02,141 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 12:55:02,183 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,183 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,183 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,184 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,184 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,184 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,185 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,186 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,186 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,186 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,187 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,187 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,192 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,192 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,192 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,193 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,198 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,198 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,199 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,199 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,201 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,202 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,202 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,202 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:55:02,217 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-09 12:55:02,238 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 12:55:02,238 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-09 12:55:02,238 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 12:55:02,239 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 12:55:02,239 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 12:55:02,239 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 12:55:02,239 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 12:55:02,239 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 12:55:02,252 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-09 12:55:02,255 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-09 12:55:02,258 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-09 12:55:02,260 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-09 12:55:02,303 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-09 12:55:02,303 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 12:55:02,308 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-09 12:55:02,311 INFO L117 LiptonReduction]: Number of co-enabled transitions 1186 [2020-10-09 12:55:03,818 INFO L132 LiptonReduction]: Checked pairs total: 2093 [2020-10-09 12:55:03,819 INFO L134 LiptonReduction]: Total number of compositions: 56 [2020-10-09 12:55:03,827 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-09 12:55:03,861 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 234 states. [2020-10-09 12:55:03,865 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states. [2020-10-09 12:55:03,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-09 12:55:03,882 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:55:03,883 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:55:03,883 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:55:03,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:55:03,889 INFO L82 PathProgramCache]: Analyzing trace with hash 364476878, now seen corresponding path program 1 times [2020-10-09 12:55:03,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:55:03,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054369461] [2020-10-09 12:55:03,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:55:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:55:04,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:55:04,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054369461] [2020-10-09 12:55:04,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:55:04,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-09 12:55:04,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61450306] [2020-10-09 12:55:04,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 12:55:04,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:55:04,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 12:55:04,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 12:55:04,145 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 3 states. [2020-10-09 12:55:04,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:55:04,184 INFO L93 Difference]: Finished difference Result 222 states and 615 transitions. [2020-10-09 12:55:04,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 12:55:04,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-09 12:55:04,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:55:04,201 INFO L225 Difference]: With dead ends: 222 [2020-10-09 12:55:04,201 INFO L226 Difference]: Without dead ends: 174 [2020-10-09 12:55:04,203 INFO L673 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 [2020-10-09 12:55:04,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-09 12:55:04,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-10-09 12:55:04,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-09 12:55:04,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 463 transitions. [2020-10-09 12:55:04,264 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 463 transitions. Word has length 8 [2020-10-09 12:55:04,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:55:04,265 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 463 transitions. [2020-10-09 12:55:04,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 12:55:04,266 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 463 transitions. [2020-10-09 12:55:04,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-09 12:55:04,267 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:55:04,268 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:55:04,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-09 12:55:04,268 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:55:04,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:55:04,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1586119381, now seen corresponding path program 1 times [2020-10-09 12:55:04,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:55:04,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539142093] [2020-10-09 12:55:04,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:55:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:55:04,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:55:04,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539142093] [2020-10-09 12:55:04,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:55:04,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:55:04,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618605906] [2020-10-09 12:55:04,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:55:04,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:55:04,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:55:04,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:55:04,341 INFO L87 Difference]: Start difference. First operand 174 states and 463 transitions. Second operand 4 states. [2020-10-09 12:55:04,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:55:04,399 INFO L93 Difference]: Finished difference Result 204 states and 513 transitions. [2020-10-09 12:55:04,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 12:55:04,400 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-09 12:55:04,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:55:04,402 INFO L225 Difference]: With dead ends: 204 [2020-10-09 12:55:04,402 INFO L226 Difference]: Without dead ends: 108 [2020-10-09 12:55:04,403 INFO L673 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 [2020-10-09 12:55:04,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-09 12:55:04,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-09 12:55:04,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-09 12:55:04,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 253 transitions. [2020-10-09 12:55:04,415 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 253 transitions. Word has length 9 [2020-10-09 12:55:04,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:55:04,415 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 253 transitions. [2020-10-09 12:55:04,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:55:04,416 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 253 transitions. [2020-10-09 12:55:04,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-09 12:55:04,417 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:55:04,417 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:55:04,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-09 12:55:04,417 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:55:04,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:55:04,418 INFO L82 PathProgramCache]: Analyzing trace with hash 409264718, now seen corresponding path program 1 times [2020-10-09 12:55:04,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:55:04,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813762381] [2020-10-09 12:55:04,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:55:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:55:04,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:55:04,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813762381] [2020-10-09 12:55:04,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:55:04,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-09 12:55:04,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409361211] [2020-10-09 12:55:04,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 12:55:04,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:55:04,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 12:55:04,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 12:55:04,525 INFO L87 Difference]: Start difference. First operand 108 states and 253 transitions. Second operand 3 states. [2020-10-09 12:55:04,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:55:04,534 INFO L93 Difference]: Finished difference Result 106 states and 246 transitions. [2020-10-09 12:55:04,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 12:55:04,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-09 12:55:04,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:55:04,536 INFO L225 Difference]: With dead ends: 106 [2020-10-09 12:55:04,536 INFO L226 Difference]: Without dead ends: 106 [2020-10-09 12:55:04,537 INFO L673 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 [2020-10-09 12:55:04,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-09 12:55:04,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-10-09 12:55:04,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-09 12:55:04,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 246 transitions. [2020-10-09 12:55:04,547 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 246 transitions. Word has length 11 [2020-10-09 12:55:04,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:55:04,547 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 246 transitions. [2020-10-09 12:55:04,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 12:55:04,547 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 246 transitions. [2020-10-09 12:55:04,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-09 12:55:04,549 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:55:04,549 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:55:04,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-09 12:55:04,549 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:55:04,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:55:04,550 INFO L82 PathProgramCache]: Analyzing trace with hash -197699224, now seen corresponding path program 1 times [2020-10-09 12:55:04,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:55:04,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344432347] [2020-10-09 12:55:04,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:55:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:55:04,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:55:04,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344432347] [2020-10-09 12:55:04,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:55:04,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:55:04,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252235646] [2020-10-09 12:55:04,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:55:04,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:55:04,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:55:04,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:55:04,595 INFO L87 Difference]: Start difference. First operand 106 states and 246 transitions. Second operand 4 states. [2020-10-09 12:55:04,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:55:04,612 INFO L93 Difference]: Finished difference Result 138 states and 314 transitions. [2020-10-09 12:55:04,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 12:55:04,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-09 12:55:04,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:55:04,614 INFO L225 Difference]: With dead ends: 138 [2020-10-09 12:55:04,614 INFO L226 Difference]: Without dead ends: 60 [2020-10-09 12:55:04,614 INFO L673 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 [2020-10-09 12:55:04,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-09 12:55:04,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-09 12:55:04,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-09 12:55:04,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 129 transitions. [2020-10-09 12:55:04,620 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 129 transitions. Word has length 12 [2020-10-09 12:55:04,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:55:04,621 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 129 transitions. [2020-10-09 12:55:04,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:55:04,621 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 129 transitions. [2020-10-09 12:55:04,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-09 12:55:04,622 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:55:04,622 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:55:04,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-09 12:55:04,622 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:55:04,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:55:04,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1143893480, now seen corresponding path program 2 times [2020-10-09 12:55:04,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:55:04,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726259419] [2020-10-09 12:55:04,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:55:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:55:04,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:55:04,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726259419] [2020-10-09 12:55:04,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:55:04,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:55:04,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125957798] [2020-10-09 12:55:04,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:55:04,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:55:04,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:55:04,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:55:04,721 INFO L87 Difference]: Start difference. First operand 60 states and 129 transitions. Second operand 4 states. [2020-10-09 12:55:04,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:55:04,749 INFO L93 Difference]: Finished difference Result 73 states and 142 transitions. [2020-10-09 12:55:04,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-09 12:55:04,749 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-09 12:55:04,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:55:04,750 INFO L225 Difference]: With dead ends: 73 [2020-10-09 12:55:04,750 INFO L226 Difference]: Without dead ends: 52 [2020-10-09 12:55:04,751 INFO L673 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 [2020-10-09 12:55:04,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-09 12:55:04,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-09 12:55:04,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-09 12:55:04,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 101 transitions. [2020-10-09 12:55:04,756 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 101 transitions. Word has length 12 [2020-10-09 12:55:04,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:55:04,756 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 101 transitions. [2020-10-09 12:55:04,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:55:04,756 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 101 transitions. [2020-10-09 12:55:04,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-09 12:55:04,757 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:55:04,757 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:55:04,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-09 12:55:04,758 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:55:04,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:55:04,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1190230917, now seen corresponding path program 1 times [2020-10-09 12:55:04,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:55:04,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526054729] [2020-10-09 12:55:04,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:55:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:55:04,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:55:04,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526054729] [2020-10-09 12:55:04,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:55:04,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 12:55:04,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620423472] [2020-10-09 12:55:04,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-09 12:55:04,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:55:04,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-09 12:55:04,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-09 12:55:04,840 INFO L87 Difference]: Start difference. First operand 52 states and 101 transitions. Second operand 5 states. [2020-10-09 12:55:04,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:55:04,890 INFO L93 Difference]: Finished difference Result 53 states and 91 transitions. [2020-10-09 12:55:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-09 12:55:04,891 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-09 12:55:04,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:55:04,893 INFO L225 Difference]: With dead ends: 53 [2020-10-09 12:55:04,893 INFO L226 Difference]: Without dead ends: 38 [2020-10-09 12:55:04,894 INFO L673 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 [2020-10-09 12:55:04,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-09 12:55:04,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-09 12:55:04,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-09 12:55:04,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2020-10-09 12:55:04,899 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 61 transitions. Word has length 13 [2020-10-09 12:55:04,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:55:04,900 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 61 transitions. [2020-10-09 12:55:04,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-09 12:55:04,900 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-10-09 12:55:04,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-09 12:55:04,900 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:55:04,901 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:55:04,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-09 12:55:04,901 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:55:04,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:55:04,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1757733921, now seen corresponding path program 1 times [2020-10-09 12:55:04,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:55:04,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456604558] [2020-10-09 12:55:04,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:55:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:55:04,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:55:04,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456604558] [2020-10-09 12:55:04,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:55:04,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-09 12:55:04,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712208194] [2020-10-09 12:55:04,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-09 12:55:04,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:55:04,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-09 12:55:04,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-09 12:55:04,970 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. Second operand 6 states. [2020-10-09 12:55:05,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:55:05,019 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-10-09 12:55:05,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-09 12:55:05,020 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-09 12:55:05,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:55:05,021 INFO L225 Difference]: With dead ends: 35 [2020-10-09 12:55:05,021 INFO L226 Difference]: Without dead ends: 29 [2020-10-09 12:55:05,021 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-09 12:55:05,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-09 12:55:05,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-09 12:55:05,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-09 12:55:05,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-10-09 12:55:05,024 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 14 [2020-10-09 12:55:05,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:55:05,024 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-10-09 12:55:05,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-09 12:55:05,024 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-10-09 12:55:05,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-09 12:55:05,025 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:55:05,025 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:55:05,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-09 12:55:05,025 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:55:05,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:55:05,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1250665313, now seen corresponding path program 1 times [2020-10-09 12:55:05,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:55:05,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544771682] [2020-10-09 12:55:05,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:55:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:55:05,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:55:05,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544771682] [2020-10-09 12:55:05,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:55:05,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:55:05,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018462290] [2020-10-09 12:55:05,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 12:55:05,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:55:05,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 12:55:05,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 12:55:05,054 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 3 states. [2020-10-09 12:55:05,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:55:05,058 INFO L93 Difference]: Finished difference Result 28 states and 42 transitions. [2020-10-09 12:55:05,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 12:55:05,059 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-09 12:55:05,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:55:05,059 INFO L225 Difference]: With dead ends: 28 [2020-10-09 12:55:05,059 INFO L226 Difference]: Without dead ends: 0 [2020-10-09 12:55:05,060 INFO L673 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 [2020-10-09 12:55:05,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-09 12:55:05,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-09 12:55:05,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-09 12:55:05,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-09 12:55:05,061 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-09 12:55:05,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:55:05,061 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-09 12:55:05,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 12:55:05,061 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-09 12:55:05,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-09 12:55:05,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-09 12:55:05,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.10 12:55:05 BasicIcfg [2020-10-09 12:55:05,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-09 12:55:05,068 INFO L168 Benchmark]: Toolchain (without parser) took 4037.89 ms. Allocated memory was 253.2 MB in the beginning and 372.2 MB in the end (delta: 119.0 MB). Free memory was 208.4 MB in the beginning and 264.4 MB in the end (delta: -56.1 MB). Peak memory consumption was 62.9 MB. Max. memory is 14.2 GB. [2020-10-09 12:55:05,068 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 253.2 MB. Free memory is still 229.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 12:55:05,069 INFO L168 Benchmark]: CACSL2BoogieTranslator took 611.04 ms. Allocated memory was 253.2 MB in the beginning and 319.3 MB in the end (delta: 66.1 MB). Free memory was 208.4 MB in the beginning and 272.7 MB in the end (delta: -64.4 MB). Peak memory consumption was 29.2 MB. Max. memory is 14.2 GB. [2020-10-09 12:55:05,070 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.42 ms. Allocated memory is still 319.3 MB. Free memory was 272.7 MB in the beginning and 270.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 12:55:05,071 INFO L168 Benchmark]: Boogie Preprocessor took 25.38 ms. Allocated memory is still 319.3 MB. Free memory was 270.2 MB in the beginning and 267.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 12:55:05,072 INFO L168 Benchmark]: RCFGBuilder took 378.69 ms. Allocated memory is still 319.3 MB. Free memory was 267.7 MB in the beginning and 245.8 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-09 12:55:05,073 INFO L168 Benchmark]: TraceAbstraction took 2950.71 ms. Allocated memory was 319.3 MB in the beginning and 372.2 MB in the end (delta: 53.0 MB). Free memory was 245.8 MB in the beginning and 264.4 MB in the end (delta: -18.6 MB). Peak memory consumption was 34.4 MB. Max. memory is 14.2 GB. [2020-10-09 12:55:05,077 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 253.2 MB. Free memory is still 229.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 611.04 ms. Allocated memory was 253.2 MB in the beginning and 319.3 MB in the end (delta: 66.1 MB). Free memory was 208.4 MB in the beginning and 272.7 MB in the end (delta: -64.4 MB). Peak memory consumption was 29.2 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 67.42 ms. Allocated memory is still 319.3 MB. Free memory was 272.7 MB in the beginning and 270.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.38 ms. Allocated memory is still 319.3 MB. Free memory was 270.2 MB in the beginning and 267.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 378.69 ms. Allocated memory is still 319.3 MB. Free memory was 267.7 MB in the beginning and 245.8 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2950.71 ms. Allocated memory was 319.3 MB in the beginning and 372.2 MB in the end (delta: 53.0 MB). Free memory was 245.8 MB in the beginning and 264.4 MB in the end (delta: -18.6 MB). Peak memory consumption was 34.4 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 761 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 42 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 76 PlacesBefore, 30 PlacesAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1186 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 56 TotalNumberOfCompositions, 2093 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 125 SDtfs, 102 SDslu, 132 SDs, 0 SdLazy, 102 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 3039 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...