/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/safe021_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:36:00,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:36:00,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:36:00,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:36:00,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:36:00,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:36:00,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:36:00,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:36:00,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:36:00,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:36:00,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:36:00,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:36:00,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:36:00,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:36:00,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:36:00,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:36:00,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:36:00,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:36:00,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:36:00,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:36:00,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:36:00,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:36:00,770 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:36:00,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:36:00,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 18:36:00,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:36:00,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:36:00,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:36:00,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:36:00,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:36:00,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:36:00,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:36:00,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:36:00,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:36:00,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:36:00,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:36:00,782 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 18:36:00,803 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:36:00,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:36:00,804 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:36:00,804 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:36:00,805 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:36:00,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:36:00,805 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:36:00,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:36:00,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:36:00,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:36:00,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:36:00,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:36:00,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:36:00,806 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:36:00,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:36:00,807 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:36:00,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:36:00,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:36:00,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:36:00,807 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:36:00,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:36:00,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:36:00,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:36:00,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:36:00,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:36:00,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:36:00,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:36:00,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:36:00,809 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:36:00,809 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:36:01,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:36:01,103 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:36:01,107 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:36:01,108 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:36:01,108 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:36:01,109 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i [2020-10-15 18:36:01,170 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bff71435a/df5f595421c348ed9e7e53fedc8458a6/FLAG1f8aba2a9 [2020-10-15 18:36:01,687 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:36:01,687 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i [2020-10-15 18:36:01,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bff71435a/df5f595421c348ed9e7e53fedc8458a6/FLAG1f8aba2a9 [2020-10-15 18:36:02,041 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bff71435a/df5f595421c348ed9e7e53fedc8458a6 [2020-10-15 18:36:02,054 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:36:02,056 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:36:02,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:36:02,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:36:02,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:36:02,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:36:02" (1/1) ... [2020-10-15 18:36:02,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@382faf61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:36:02, skipping insertion in model container [2020-10-15 18:36:02,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:36:02" (1/1) ... [2020-10-15 18:36:02,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:36:02,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:36:02,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:36:02,677 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:36:02,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:36:02,791 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:36:02,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:36:02 WrapperNode [2020-10-15 18:36:02,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:36:02,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:36:02,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:36:02,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:36:02,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:36:02" (1/1) ... [2020-10-15 18:36:02,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:36:02" (1/1) ... [2020-10-15 18:36:02,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:36:02,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:36:02,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:36:02,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:36:02,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:36:02" (1/1) ... [2020-10-15 18:36:02,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:36:02" (1/1) ... [2020-10-15 18:36:02,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:36:02" (1/1) ... [2020-10-15 18:36:02,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:36:02" (1/1) ... [2020-10-15 18:36:02,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:36:02" (1/1) ... [2020-10-15 18:36:02,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:36:02" (1/1) ... [2020-10-15 18:36:02,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:36:02" (1/1) ... [2020-10-15 18:36:02,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:36:02,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:36:02,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:36:02,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:36:02,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:36:02" (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 18:36:02,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:36:02,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:36:02,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:36:02,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:36:02,947 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:36:02,948 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:36:02,948 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:36:02,949 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:36:02,949 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:36:02,950 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:36:02,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:36:02,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:36:02,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:36:02,952 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 18:36:03,297 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:36:03,297 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:36:03,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:36:03 BoogieIcfgContainer [2020-10-15 18:36:03,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:36:03,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:36:03,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:36:03,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:36:03,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:36:02" (1/3) ... [2020-10-15 18:36:03,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bcfec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:36:03, skipping insertion in model container [2020-10-15 18:36:03,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:36:02" (2/3) ... [2020-10-15 18:36:03,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bcfec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:36:03, skipping insertion in model container [2020-10-15 18:36:03,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:36:03" (3/3) ... [2020-10-15 18:36:03,320 INFO L111 eAbstractionObserver]: Analyzing ICFG safe021_tso.opt.i [2020-10-15 18:36:03,343 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:36:03,344 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:36:03,351 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:36:03,352 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:36:03,384 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,384 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,385 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,385 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,386 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,386 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,387 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,387 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,388 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,388 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,389 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,389 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,389 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,389 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,390 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,390 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,394 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,394 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,395 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,395 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,401 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,402 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,405 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,405 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,405 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,405 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:36:03,422 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 18:36:03,445 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:36:03,445 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:36:03,445 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:36:03,446 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:36:03,446 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:36:03,446 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:36:03,446 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:36:03,446 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:36:03,460 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:36:03,463 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-15 18:36:03,467 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-15 18:36:03,469 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-15 18:36:03,516 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-15 18:36:03,516 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:36:03,522 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 46 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 18:36:03,525 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 18:36:04,901 INFO L132 LiptonReduction]: Checked pairs total: 2334 [2020-10-15 18:36:04,902 INFO L134 LiptonReduction]: Total number of compositions: 56 [2020-10-15 18:36:04,909 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-15 18:36:04,939 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-15 18:36:04,942 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-15 18:36:04,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 18:36:04,950 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:36:04,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:36:04,951 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:36:04,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:36:04,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1626400852, now seen corresponding path program 1 times [2020-10-15 18:36:04,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:36:04,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419860543] [2020-10-15 18:36:04,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:36:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:36:05,153 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 18:36:05,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419860543] [2020-10-15 18:36:05,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:36:05,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:36:05,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172541944] [2020-10-15 18:36:05,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 18:36:05,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:36:05,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 18:36:05,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 18:36:05,183 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-15 18:36:05,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:36:05,219 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-15 18:36:05,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 18:36:05,220 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-15 18:36:05,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:36:05,241 INFO L225 Difference]: With dead ends: 362 [2020-10-15 18:36:05,242 INFO L226 Difference]: Without dead ends: 298 [2020-10-15 18:36:05,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 18:36:05,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-15 18:36:05,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-15 18:36:05,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-15 18:36:05,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-15 18:36:05,334 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-15 18:36:05,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:36:05,335 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-15 18:36:05,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 18:36:05,335 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-15 18:36:05,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:36:05,337 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:36:05,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:36:05,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:36:05,337 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:36:05,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:36:05,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1121187596, now seen corresponding path program 1 times [2020-10-15 18:36:05,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:36:05,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052236923] [2020-10-15 18:36:05,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:36:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:36:05,522 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 18:36:05,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052236923] [2020-10-15 18:36:05,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:36:05,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:36:05,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538547128] [2020-10-15 18:36:05,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:36:05,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:36:05,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:36:05,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:36:05,530 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-15 18:36:05,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:36:05,589 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-15 18:36:05,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:36:05,593 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 18:36:05,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:36:05,599 INFO L225 Difference]: With dead ends: 330 [2020-10-15 18:36:05,599 INFO L226 Difference]: Without dead ends: 266 [2020-10-15 18:36:05,602 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 18:36:05,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-15 18:36:05,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-15 18:36:05,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-15 18:36:05,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-15 18:36:05,633 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-15 18:36:05,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:36:05,634 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-15 18:36:05,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:36:05,634 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-15 18:36:05,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 18:36:05,636 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:36:05,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:36:05,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:36:05,636 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:36:05,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:36:05,637 INFO L82 PathProgramCache]: Analyzing trace with hash -397698604, now seen corresponding path program 1 times [2020-10-15 18:36:05,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:36:05,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322269025] [2020-10-15 18:36:05,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:36:05,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:36:05,711 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 18:36:05,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322269025] [2020-10-15 18:36:05,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:36:05,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:36:05,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081164886] [2020-10-15 18:36:05,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:36:05,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:36:05,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:36:05,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:36:05,714 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-10-15 18:36:05,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:36:05,763 INFO L93 Difference]: Finished difference Result 314 states and 856 transitions. [2020-10-15 18:36:05,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:36:05,763 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-15 18:36:05,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:36:05,766 INFO L225 Difference]: With dead ends: 314 [2020-10-15 18:36:05,784 INFO L226 Difference]: Without dead ends: 170 [2020-10-15 18:36:05,785 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 18:36:05,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-15 18:36:05,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-10-15 18:36:05,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-15 18:36:05,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 432 transitions. [2020-10-15 18:36:05,795 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 432 transitions. Word has length 10 [2020-10-15 18:36:05,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:36:05,796 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 432 transitions. [2020-10-15 18:36:05,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:36:05,796 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 432 transitions. [2020-10-15 18:36:05,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:36:05,798 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:36:05,798 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:36:05,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:36:05,798 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:36:05,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:36:05,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1820296279, now seen corresponding path program 1 times [2020-10-15 18:36:05,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:36:05,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871651121] [2020-10-15 18:36:05,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:36:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:36:05,853 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 18:36:05,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871651121] [2020-10-15 18:36:05,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:36:05,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:36:05,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885736649] [2020-10-15 18:36:05,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:36:05,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:36:05,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:36:05,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:36:05,856 INFO L87 Difference]: Start difference. First operand 170 states and 432 transitions. Second operand 4 states. [2020-10-15 18:36:05,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:36:05,888 INFO L93 Difference]: Finished difference Result 183 states and 423 transitions. [2020-10-15 18:36:05,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:36:05,889 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 18:36:05,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:36:05,890 INFO L225 Difference]: With dead ends: 183 [2020-10-15 18:36:05,890 INFO L226 Difference]: Without dead ends: 143 [2020-10-15 18:36:05,891 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 18:36:05,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-10-15 18:36:05,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2020-10-15 18:36:05,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-10-15 18:36:05,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 330 transitions. [2020-10-15 18:36:05,898 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 330 transitions. Word has length 12 [2020-10-15 18:36:05,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:36:05,899 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 330 transitions. [2020-10-15 18:36:05,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:36:05,899 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 330 transitions. [2020-10-15 18:36:05,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:36:05,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:36:05,901 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:36:05,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:36:05,901 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:36:05,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:36:05,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1114555336, now seen corresponding path program 1 times [2020-10-15 18:36:05,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:36:05,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554998554] [2020-10-15 18:36:05,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:36:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:36:05,972 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 18:36:05,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554998554] [2020-10-15 18:36:05,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:36:05,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:36:05,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636323324] [2020-10-15 18:36:05,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:36:05,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:36:05,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:36:05,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:36:05,975 INFO L87 Difference]: Start difference. First operand 143 states and 330 transitions. Second operand 5 states. [2020-10-15 18:36:06,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:36:06,021 INFO L93 Difference]: Finished difference Result 129 states and 271 transitions. [2020-10-15 18:36:06,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:36:06,021 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 18:36:06,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:36:06,022 INFO L225 Difference]: With dead ends: 129 [2020-10-15 18:36:06,023 INFO L226 Difference]: Without dead ends: 104 [2020-10-15 18:36:06,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 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 18:36:06,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-15 18:36:06,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-10-15 18:36:06,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-15 18:36:06,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 215 transitions. [2020-10-15 18:36:06,028 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 215 transitions. Word has length 13 [2020-10-15 18:36:06,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:36:06,028 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 215 transitions. [2020-10-15 18:36:06,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:36:06,028 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 215 transitions. [2020-10-15 18:36:06,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:36:06,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:36:06,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:36:06,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:36:06,030 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:36:06,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:36:06,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1420096236, now seen corresponding path program 1 times [2020-10-15 18:36:06,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:36:06,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266596898] [2020-10-15 18:36:06,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:36:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:36:06,087 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 18:36:06,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266596898] [2020-10-15 18:36:06,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:36:06,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:36:06,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393698837] [2020-10-15 18:36:06,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 18:36:06,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:36:06,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 18:36:06,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:36:06,090 INFO L87 Difference]: Start difference. First operand 104 states and 215 transitions. Second operand 6 states. [2020-10-15 18:36:06,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:36:06,155 INFO L93 Difference]: Finished difference Result 93 states and 191 transitions. [2020-10-15 18:36:06,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:36:06,155 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-15 18:36:06,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:36:06,156 INFO L225 Difference]: With dead ends: 93 [2020-10-15 18:36:06,156 INFO L226 Difference]: Without dead ends: 85 [2020-10-15 18:36:06,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 18:36:06,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-15 18:36:06,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-15 18:36:06,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-15 18:36:06,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-10-15 18:36:06,161 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 15 [2020-10-15 18:36:06,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:36:06,161 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-10-15 18:36:06,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 18:36:06,162 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-10-15 18:36:06,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 18:36:06,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:36:06,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:36:06,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:36:06,167 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:36:06,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:36:06,167 INFO L82 PathProgramCache]: Analyzing trace with hash -572692364, now seen corresponding path program 1 times [2020-10-15 18:36:06,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:36:06,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098107139] [2020-10-15 18:36:06,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:36:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:36:06,213 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 18:36:06,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098107139] [2020-10-15 18:36:06,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:36:06,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:36:06,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622903695] [2020-10-15 18:36:06,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:36:06,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:36:06,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:36:06,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:36:06,215 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 4 states. [2020-10-15 18:36:06,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:36:06,231 INFO L93 Difference]: Finished difference Result 117 states and 236 transitions. [2020-10-15 18:36:06,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:36:06,232 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-15 18:36:06,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:36:06,233 INFO L225 Difference]: With dead ends: 117 [2020-10-15 18:36:06,233 INFO L226 Difference]: Without dead ends: 55 [2020-10-15 18:36:06,233 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 18:36:06,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-15 18:36:06,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-15 18:36:06,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-15 18:36:06,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-15 18:36:06,236 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-10-15 18:36:06,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:36:06,236 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-15 18:36:06,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:36:06,237 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-15 18:36:06,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 18:36:06,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:36:06,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:36:06,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:36:06,238 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:36:06,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:36:06,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1123595488, now seen corresponding path program 2 times [2020-10-15 18:36:06,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:36:06,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510313444] [2020-10-15 18:36:06,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:36:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:36:06,289 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 18:36:06,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510313444] [2020-10-15 18:36:06,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:36:06,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:36:06,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150926032] [2020-10-15 18:36:06,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:36:06,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:36:06,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:36:06,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:36:06,292 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 5 states. [2020-10-15 18:36:06,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:36:06,312 INFO L93 Difference]: Finished difference Result 54 states and 98 transitions. [2020-10-15 18:36:06,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:36:06,312 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-15 18:36:06,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:36:06,312 INFO L225 Difference]: With dead ends: 54 [2020-10-15 18:36:06,313 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:36:06,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:36:06,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:36:06,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:36:06,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:36:06,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:36:06,314 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-15 18:36:06,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:36:06,314 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:36:06,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:36:06,315 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:36:06,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:36:06,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 18:36:06,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:36:06 BasicIcfg [2020-10-15 18:36:06,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:36:06,322 INFO L168 Benchmark]: Toolchain (without parser) took 4265.37 ms. Allocated memory was 251.7 MB in the beginning and 370.7 MB in the end (delta: 119.0 MB). Free memory was 206.8 MB in the beginning and 268.4 MB in the end (delta: -61.6 MB). Peak memory consumption was 57.4 MB. Max. memory is 14.2 GB. [2020-10-15 18:36:06,323 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 251.7 MB. Free memory was 229.7 MB in the beginning and 228.9 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-15 18:36:06,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.47 ms. Allocated memory was 251.7 MB in the beginning and 313.5 MB in the end (delta: 61.9 MB). Free memory was 206.8 MB in the beginning and 265.3 MB in the end (delta: -58.5 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. [2020-10-15 18:36:06,324 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.56 ms. Allocated memory is still 313.5 MB. Free memory was 264.5 MB in the beginning and 262.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:36:06,325 INFO L168 Benchmark]: Boogie Preprocessor took 33.28 ms. Allocated memory is still 313.5 MB. Free memory was 262.8 MB in the beginning and 261.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:36:06,326 INFO L168 Benchmark]: RCFGBuilder took 422.29 ms. Allocated memory is still 313.5 MB. Free memory was 261.1 MB in the beginning and 238.4 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:36:06,327 INFO L168 Benchmark]: TraceAbstraction took 3017.41 ms. Allocated memory was 313.5 MB in the beginning and 370.7 MB in the end (delta: 57.1 MB). Free memory was 238.4 MB in the beginning and 268.4 MB in the end (delta: -30.0 MB). Peak memory consumption was 27.1 MB. Max. memory is 14.2 GB. [2020-10-15 18:36:06,331 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 251.7 MB. Free memory was 229.7 MB in the beginning and 228.9 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 734.47 ms. Allocated memory was 251.7 MB in the beginning and 313.5 MB in the end (delta: 61.9 MB). Free memory was 206.8 MB in the beginning and 265.3 MB in the end (delta: -58.5 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 51.56 ms. Allocated memory is still 313.5 MB. Free memory was 264.5 MB in the beginning and 262.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 33.28 ms. Allocated memory is still 313.5 MB. Free memory was 262.8 MB in the beginning and 261.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 422.29 ms. Allocated memory is still 313.5 MB. Free memory was 261.1 MB in the beginning and 238.4 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3017.41 ms. Allocated memory was 313.5 MB in the beginning and 370.7 MB in the end (delta: 57.1 MB). Free memory was 238.4 MB in the beginning and 268.4 MB in the end (delta: -30.0 MB). Peak memory consumption was 27.1 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 829 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 83 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 78 PlacesBefore, 32 PlacesAfterwards, 70 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 56 TotalNumberOfCompositions, 2334 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: 2.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 175 SDtfs, 173 SDslu, 270 SDs, 0 SdLazy, 104 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 2932 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...