/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/safe035_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:40:09,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:40:09,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:40:09,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:40:09,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:40:09,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:40:09,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:40:09,493 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:40:09,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:40:09,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:40:09,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:40:09,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:40:09,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:40:09,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:40:09,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:40:09,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:40:09,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:40:09,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:40:09,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:40:09,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:40:09,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:40:09,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:40:09,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:40:09,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:40:09,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 18:40:09,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:40:09,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:40:09,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:40:09,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:40:09,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:40:09,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:40:09,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:40:09,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:40:09,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:40:09,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:40:09,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:40:09,530 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 [2020-10-15 18:40:09,551 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:40:09,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:40:09,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:40:09,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:40:09,553 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:40:09,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:40:09,553 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:40:09,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:40:09,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:40:09,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:40:09,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:40:09,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:40:09,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:40:09,555 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:40:09,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:40:09,555 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:40:09,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:40:09,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:40:09,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:40:09,556 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:40:09,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:40:09,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:40:09,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:40:09,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:40:09,557 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:40:09,557 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:40:09,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:40:09,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:40:09,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:40:09,558 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:40:09,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:40:09,924 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:40:09,928 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:40:09,929 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:40:09,930 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:40:09,930 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.opt.i [2020-10-15 18:40:10,009 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c41dfa07/02c0a45454164b09b2a4d40ddf13d4b1/FLAG35235803a [2020-10-15 18:40:10,574 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:40:10,575 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_pso.opt.i [2020-10-15 18:40:10,589 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c41dfa07/02c0a45454164b09b2a4d40ddf13d4b1/FLAG35235803a [2020-10-15 18:40:10,830 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c41dfa07/02c0a45454164b09b2a4d40ddf13d4b1 [2020-10-15 18:40:10,841 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:40:10,843 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:40:10,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:40:10,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:40:10,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:40:10,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:40:10" (1/1) ... [2020-10-15 18:40:10,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c17228a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:10, skipping insertion in model container [2020-10-15 18:40:10,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:40:10" (1/1) ... [2020-10-15 18:40:10,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:40:10,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:40:11,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:40:11,498 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:40:11,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:40:11,621 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:40:11,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:11 WrapperNode [2020-10-15 18:40:11,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:40:11,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:40:11,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:40:11,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:40:11,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:11" (1/1) ... [2020-10-15 18:40:11,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:11" (1/1) ... [2020-10-15 18:40:11,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:40:11,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:40:11,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:40:11,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:40:11,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:11" (1/1) ... [2020-10-15 18:40:11,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:11" (1/1) ... [2020-10-15 18:40:11,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:11" (1/1) ... [2020-10-15 18:40:11,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:11" (1/1) ... [2020-10-15 18:40:11,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:11" (1/1) ... [2020-10-15 18:40:11,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:11" (1/1) ... [2020-10-15 18:40:11,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:11" (1/1) ... [2020-10-15 18:40:11,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:40:11,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:40:11,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:40:11,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:40:11,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:11" (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 [2020-10-15 18:40:11,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:40:11,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:40:11,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:40:11,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:40:11,764 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:40:11,765 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:40:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:40:11,766 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:40:11,766 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:40:11,767 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:40:11,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:40:11,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:40:11,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:40:11,770 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:40:12,118 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:40:12,118 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:40:12,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:40:12 BoogieIcfgContainer [2020-10-15 18:40:12,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:40:12,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:40:12,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:40:12,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:40:12,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:40:10" (1/3) ... [2020-10-15 18:40:12,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f694e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:40:12, skipping insertion in model container [2020-10-15 18:40:12,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:11" (2/3) ... [2020-10-15 18:40:12,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f694e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:40:12, skipping insertion in model container [2020-10-15 18:40:12,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:40:12" (3/3) ... [2020-10-15 18:40:12,138 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_pso.opt.i [2020-10-15 18:40:12,153 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:40:12,153 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:40:12,160 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:40:12,161 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:40:12,190 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,190 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,191 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,191 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,192 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,192 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,193 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,193 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,194 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,194 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,194 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,195 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,195 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,195 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,195 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,196 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,200 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,200 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,200 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,206 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,206 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,207 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,207 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,210 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,210 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,210 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,210 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:12,228 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 18:40:12,249 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:40:12,250 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:40:12,250 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:40:12,250 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:40:12,250 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:40:12,250 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:40:12,250 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:40:12,251 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:40:12,265 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:40:12,267 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-15 18:40:12,270 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-15 18:40:12,273 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-15 18:40:12,317 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-15 18:40:12,318 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:40:12,323 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 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. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-15 18:40:12,326 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 18:40:13,952 INFO L132 LiptonReduction]: Checked pairs total: 2520 [2020-10-15 18:40:13,953 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-15 18:40:13,960 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-10-15 18:40:13,990 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-15 18:40:13,993 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-15 18:40:14,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 18:40:14,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:40:14,002 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:40:14,003 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:40:14,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:40:14,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1626757645, now seen corresponding path program 1 times [2020-10-15 18:40:14,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:40:14,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673759050] [2020-10-15 18:40:14,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:40:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:40:14,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:40:14,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673759050] [2020-10-15 18:40:14,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:40:14,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:40:14,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081145667] [2020-10-15 18:40:14,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:40:14,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:40:14,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:40:14,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:40:14,344 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-15 18:40:14,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:40:14,390 INFO L93 Difference]: Finished difference Result 294 states and 849 transitions. [2020-10-15 18:40:14,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:40:14,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 18:40:14,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:40:14,409 INFO L225 Difference]: With dead ends: 294 [2020-10-15 18:40:14,409 INFO L226 Difference]: Without dead ends: 230 [2020-10-15 18:40:14,410 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:40:14,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-15 18:40:14,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2020-10-15 18:40:14,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-15 18:40:14,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 641 transitions. [2020-10-15 18:40:14,479 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 641 transitions. Word has length 8 [2020-10-15 18:40:14,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:40:14,481 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 641 transitions. [2020-10-15 18:40:14,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:40:14,481 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 641 transitions. [2020-10-15 18:40:14,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:40:14,482 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:40:14,483 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:40:14,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:40:14,483 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:40:14,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:40:14,484 INFO L82 PathProgramCache]: Analyzing trace with hash 113122264, now seen corresponding path program 1 times [2020-10-15 18:40:14,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:40:14,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34076730] [2020-10-15 18:40:14,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:40:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:40:14,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:40:14,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34076730] [2020-10-15 18:40:14,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:40:14,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:40:14,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550167270] [2020-10-15 18:40:14,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:40:14,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:40:14,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:40:14,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:40:14,546 INFO L87 Difference]: Start difference. First operand 230 states and 641 transitions. Second operand 3 states. [2020-10-15 18:40:14,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:40:14,556 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-10-15 18:40:14,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:40:14,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-15 18:40:14,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:40:14,559 INFO L225 Difference]: With dead ends: 202 [2020-10-15 18:40:14,559 INFO L226 Difference]: Without dead ends: 202 [2020-10-15 18:40:14,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:40:14,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-15 18:40:14,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-15 18:40:14,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-15 18:40:14,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-15 18:40:14,578 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-10-15 18:40:14,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:40:14,579 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-15 18:40:14,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:40:14,579 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-15 18:40:14,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 18:40:14,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:40:14,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:40:14,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:40:14,581 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:40:14,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:40:14,582 INFO L82 PathProgramCache]: Analyzing trace with hash -54559497, now seen corresponding path program 1 times [2020-10-15 18:40:14,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:40:14,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893088703] [2020-10-15 18:40:14,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:40:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:40:14,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:40:14,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893088703] [2020-10-15 18:40:14,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:40:14,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:40:14,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669151644] [2020-10-15 18:40:14,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:40:14,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:40:14,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:40:14,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:40:14,631 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-15 18:40:14,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:40:14,648 INFO L93 Difference]: Finished difference Result 266 states and 704 transitions. [2020-10-15 18:40:14,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:40:14,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-15 18:40:14,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:40:14,651 INFO L225 Difference]: With dead ends: 266 [2020-10-15 18:40:14,651 INFO L226 Difference]: Without dead ends: 140 [2020-10-15 18:40:14,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:40:14,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-15 18:40:14,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-10-15 18:40:14,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-15 18:40:14,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 362 transitions. [2020-10-15 18:40:14,662 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 362 transitions. Word has length 10 [2020-10-15 18:40:14,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:40:14,663 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 362 transitions. [2020-10-15 18:40:14,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:40:14,663 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions. [2020-10-15 18:40:14,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 18:40:14,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:40:14,664 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:40:14,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:40:14,668 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:40:14,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:40:14,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1691362226, now seen corresponding path program 1 times [2020-10-15 18:40:14,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:40:14,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957381242] [2020-10-15 18:40:14,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:40:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:40:14,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:40:14,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957381242] [2020-10-15 18:40:14,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:40:14,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:40:14,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966405089] [2020-10-15 18:40:14,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:40:14,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:40:14,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:40:14,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:40:14,823 INFO L87 Difference]: Start difference. First operand 140 states and 362 transitions. Second operand 4 states. [2020-10-15 18:40:14,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:40:14,869 INFO L93 Difference]: Finished difference Result 165 states and 389 transitions. [2020-10-15 18:40:14,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:40:14,870 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 18:40:14,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:40:14,871 INFO L225 Difference]: With dead ends: 165 [2020-10-15 18:40:14,872 INFO L226 Difference]: Without dead ends: 113 [2020-10-15 18:40:14,872 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:40:14,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-15 18:40:14,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-10-15 18:40:14,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-15 18:40:14,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 257 transitions. [2020-10-15 18:40:14,880 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 257 transitions. Word has length 11 [2020-10-15 18:40:14,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:40:14,880 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 257 transitions. [2020-10-15 18:40:14,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:40:14,880 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions. [2020-10-15 18:40:14,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:40:14,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:40:14,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:40:14,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:40:14,882 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:40:14,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:40:14,882 INFO L82 PathProgramCache]: Analyzing trace with hash -891715752, now seen corresponding path program 1 times [2020-10-15 18:40:14,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:40:14,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912904859] [2020-10-15 18:40:14,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:40:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:40:14,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:40:14,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912904859] [2020-10-15 18:40:14,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:40:14,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:40:14,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597447990] [2020-10-15 18:40:14,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:40:14,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:40:14,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:40:14,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:40:14,955 INFO L87 Difference]: Start difference. First operand 113 states and 257 transitions. Second operand 5 states. [2020-10-15 18:40:14,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:40:14,993 INFO L93 Difference]: Finished difference Result 111 states and 232 transitions. [2020-10-15 18:40:14,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:40:14,994 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-15 18:40:14,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:40:14,995 INFO L225 Difference]: With dead ends: 111 [2020-10-15 18:40:14,995 INFO L226 Difference]: Without dead ends: 80 [2020-10-15 18:40:14,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:40:14,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-15 18:40:14,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-15 18:40:14,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-15 18:40:15,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 159 transitions. [2020-10-15 18:40:15,000 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 159 transitions. Word has length 12 [2020-10-15 18:40:15,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:40:15,000 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 159 transitions. [2020-10-15 18:40:15,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:40:15,001 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions. [2020-10-15 18:40:15,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:40:15,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:40:15,002 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:40:15,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:40:15,002 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:40:15,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:40:15,003 INFO L82 PathProgramCache]: Analyzing trace with hash 2053094164, now seen corresponding path program 1 times [2020-10-15 18:40:15,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:40:15,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250271132] [2020-10-15 18:40:15,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:40:15,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:40:15,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:40:15,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250271132] [2020-10-15 18:40:15,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:40:15,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:40:15,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858655587] [2020-10-15 18:40:15,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 18:40:15,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:40:15,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 18:40:15,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:40:15,073 INFO L87 Difference]: Start difference. First operand 80 states and 159 transitions. Second operand 6 states. [2020-10-15 18:40:15,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:40:15,127 INFO L93 Difference]: Finished difference Result 75 states and 147 transitions. [2020-10-15 18:40:15,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:40:15,128 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-15 18:40:15,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:40:15,128 INFO L225 Difference]: With dead ends: 75 [2020-10-15 18:40:15,129 INFO L226 Difference]: Without dead ends: 66 [2020-10-15 18:40:15,129 INFO L677 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 [2020-10-15 18:40:15,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-15 18:40:15,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-15 18:40:15,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-15 18:40:15,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 131 transitions. [2020-10-15 18:40:15,133 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 131 transitions. Word has length 14 [2020-10-15 18:40:15,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:40:15,133 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 131 transitions. [2020-10-15 18:40:15,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 18:40:15,133 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2020-10-15 18:40:15,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:40:15,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:40:15,135 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:40:15,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:40:15,135 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:40:15,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:40:15,135 INFO L82 PathProgramCache]: Analyzing trace with hash -913032564, now seen corresponding path program 1 times [2020-10-15 18:40:15,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:40:15,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251954431] [2020-10-15 18:40:15,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:40:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:40:15,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:40:15,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251954431] [2020-10-15 18:40:15,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:40:15,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:40:15,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505232163] [2020-10-15 18:40:15,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:40:15,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:40:15,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:40:15,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:40:15,173 INFO L87 Difference]: Start difference. First operand 66 states and 131 transitions. Second operand 4 states. [2020-10-15 18:40:15,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:40:15,192 INFO L93 Difference]: Finished difference Result 85 states and 165 transitions. [2020-10-15 18:40:15,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:40:15,192 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-15 18:40:15,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:40:15,193 INFO L225 Difference]: With dead ends: 85 [2020-10-15 18:40:15,193 INFO L226 Difference]: Without dead ends: 48 [2020-10-15 18:40:15,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:40:15,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-15 18:40:15,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-15 18:40:15,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-15 18:40:15,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions. [2020-10-15 18:40:15,197 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 17 [2020-10-15 18:40:15,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:40:15,197 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions. [2020-10-15 18:40:15,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:40:15,197 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2020-10-15 18:40:15,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:40:15,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:40:15,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:40:15,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:40:15,199 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:40:15,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:40:15,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1376526520, now seen corresponding path program 2 times [2020-10-15 18:40:15,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:40:15,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966029065] [2020-10-15 18:40:15,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:40:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:40:15,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:40:15,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966029065] [2020-10-15 18:40:15,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:40:15,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:40:15,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910934768] [2020-10-15 18:40:15,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:40:15,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:40:15,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:40:15,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:40:15,234 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 4 states. [2020-10-15 18:40:15,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:40:15,252 INFO L93 Difference]: Finished difference Result 73 states and 130 transitions. [2020-10-15 18:40:15,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:40:15,253 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-15 18:40:15,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:40:15,253 INFO L225 Difference]: With dead ends: 73 [2020-10-15 18:40:15,253 INFO L226 Difference]: Without dead ends: 42 [2020-10-15 18:40:15,254 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:40:15,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-15 18:40:15,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-15 18:40:15,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-15 18:40:15,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 71 transitions. [2020-10-15 18:40:15,256 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 71 transitions. Word has length 17 [2020-10-15 18:40:15,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:40:15,257 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 71 transitions. [2020-10-15 18:40:15,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:40:15,257 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions. [2020-10-15 18:40:15,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:40:15,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:40:15,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:40:15,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 18:40:15,258 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:40:15,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:40:15,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1323635892, now seen corresponding path program 3 times [2020-10-15 18:40:15,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:40:15,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119652519] [2020-10-15 18:40:15,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:40:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:40:15,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:40:15,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119652519] [2020-10-15 18:40:15,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:40:15,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:40:15,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822391941] [2020-10-15 18:40:15,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:40:15,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:40:15,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:40:15,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:40:15,291 INFO L87 Difference]: Start difference. First operand 42 states and 71 transitions. Second operand 4 states. [2020-10-15 18:40:15,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:40:15,301 INFO L93 Difference]: Finished difference Result 41 states and 70 transitions. [2020-10-15 18:40:15,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:40:15,301 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-15 18:40:15,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:40:15,302 INFO L225 Difference]: With dead ends: 41 [2020-10-15 18:40:15,302 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:40:15,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:40:15,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:40:15,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:40:15,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:40:15,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:40:15,303 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-15 18:40:15,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:40:15,303 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:40:15,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:40:15,304 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:40:15,304 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:40:15,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 18:40:15,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:40:15 BasicIcfg [2020-10-15 18:40:15,308 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:40:15,310 INFO L168 Benchmark]: Toolchain (without parser) took 4467.47 ms. Allocated memory was 252.7 MB in the beginning and 367.0 MB in the end (delta: 114.3 MB). Free memory was 208.0 MB in the beginning and 222.5 MB in the end (delta: -14.5 MB). Peak memory consumption was 99.8 MB. Max. memory is 14.2 GB. [2020-10-15 18:40:15,311 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 252.7 MB. Free memory is still 229.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:40:15,312 INFO L168 Benchmark]: CACSL2BoogieTranslator took 778.20 ms. Allocated memory was 252.7 MB in the beginning and 314.0 MB in the end (delta: 61.3 MB). Free memory was 208.0 MB in the beginning and 267.4 MB in the end (delta: -59.4 MB). Peak memory consumption was 29.3 MB. Max. memory is 14.2 GB. [2020-10-15 18:40:15,313 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.67 ms. Allocated memory is still 314.0 MB. Free memory was 267.4 MB in the beginning and 264.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:40:15,314 INFO L168 Benchmark]: Boogie Preprocessor took 26.48 ms. Allocated memory is still 314.0 MB. Free memory was 264.9 MB in the beginning and 262.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:40:15,314 INFO L168 Benchmark]: RCFGBuilder took 421.58 ms. Allocated memory is still 314.0 MB. Free memory was 262.4 MB in the beginning and 240.6 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. [2020-10-15 18:40:15,315 INFO L168 Benchmark]: TraceAbstraction took 3182.44 ms. Allocated memory was 314.0 MB in the beginning and 367.0 MB in the end (delta: 53.0 MB). Free memory was 240.6 MB in the beginning and 222.5 MB in the end (delta: 18.0 MB). Peak memory consumption was 71.0 MB. Max. memory is 14.2 GB. [2020-10-15 18:40:15,319 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 252.7 MB. Free memory is still 229.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 778.20 ms. Allocated memory was 252.7 MB in the beginning and 314.0 MB in the end (delta: 61.3 MB). Free memory was 208.0 MB in the beginning and 267.4 MB in the end (delta: -59.4 MB). Peak memory consumption was 29.3 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 49.67 ms. Allocated memory is still 314.0 MB. Free memory was 267.4 MB in the beginning and 264.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.48 ms. Allocated memory is still 314.0 MB. Free memory was 264.9 MB in the beginning and 262.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 421.58 ms. Allocated memory is still 314.0 MB. Free memory was 262.4 MB in the beginning and 240.6 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3182.44 ms. Allocated memory was 314.0 MB in the beginning and 367.0 MB in the end (delta: 53.0 MB). Free memory was 240.6 MB in the beginning and 222.5 MB in the end (delta: 18.0 MB). Peak memory consumption was 71.0 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 837 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 63 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 58 TotalNumberOfCompositions, 2520 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 172 SDtfs, 128 SDslu, 202 SDs, 0 SdLazy, 120 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 3412 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...