/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-ext/13_unverif.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 21:38:07,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 21:38:07,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 21:38:07,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 21:38:07,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 21:38:07,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 21:38:07,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 21:38:07,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 21:38:07,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 21:38:07,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 21:38:07,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 21:38:07,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 21:38:07,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 21:38:07,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 21:38:07,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 21:38:07,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 21:38:07,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 21:38:07,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 21:38:07,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 21:38:07,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 21:38:07,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 21:38:07,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 21:38:07,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 21:38:07,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 21:38:07,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 21:38:07,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 21:38:07,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 21:38:07,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 21:38:07,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 21:38:07,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 21:38:07,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 21:38:07,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 21:38:07,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 21:38:07,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 21:38:07,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 21:38:07,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 21:38:07,692 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 [2020-10-21 21:38:07,713 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 21:38:07,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 21:38:07,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 21:38:07,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 21:38:07,715 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 21:38:07,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 21:38:07,716 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 21:38:07,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 21:38:07,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 21:38:07,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 21:38:07,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 21:38:07,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 21:38:07,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 21:38:07,717 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 21:38:07,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 21:38:07,717 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 21:38:07,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 21:38:07,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 21:38:07,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 21:38:07,718 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 21:38:07,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 21:38:07,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 21:38:07,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 21:38:07,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 21:38:07,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 21:38:07,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 21:38:07,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 21:38:07,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 21:38:07,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 21:38:07,720 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 21:38:08,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 21:38:08,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 21:38:08,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 21:38:08,017 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 21:38:08,018 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 21:38:08,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/13_unverif.i [2020-10-21 21:38:08,079 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1672a423c/ab74368bfc854ee285316fba7ddab39a/FLAG8cf7d0d45 [2020-10-21 21:38:08,651 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 21:38:08,652 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/13_unverif.i [2020-10-21 21:38:08,673 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1672a423c/ab74368bfc854ee285316fba7ddab39a/FLAG8cf7d0d45 [2020-10-21 21:38:08,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1672a423c/ab74368bfc854ee285316fba7ddab39a [2020-10-21 21:38:08,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 21:38:08,954 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 21:38:08,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 21:38:08,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 21:38:08,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 21:38:08,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 09:38:08" (1/1) ... [2020-10-21 21:38:08,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a0fd11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:38:08, skipping insertion in model container [2020-10-21 21:38:08,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 09:38:08" (1/1) ... [2020-10-21 21:38:08,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 21:38:09,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 21:38:09,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 21:38:09,466 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 21:38:09,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 21:38:09,605 INFO L208 MainTranslator]: Completed translation [2020-10-21 21:38:09,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:38:09 WrapperNode [2020-10-21 21:38:09,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 21:38:09,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 21:38:09,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 21:38:09,609 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 21:38:09,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:38:09" (1/1) ... [2020-10-21 21:38:09,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:38:09" (1/1) ... [2020-10-21 21:38:09,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 21:38:09,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 21:38:09,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 21:38:09,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 21:38:09,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:38:09" (1/1) ... [2020-10-21 21:38:09,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:38:09" (1/1) ... [2020-10-21 21:38:09,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:38:09" (1/1) ... [2020-10-21 21:38:09,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:38:09" (1/1) ... [2020-10-21 21:38:09,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:38:09" (1/1) ... [2020-10-21 21:38:09,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:38:09" (1/1) ... [2020-10-21 21:38:09,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:38:09" (1/1) ... [2020-10-21 21:38:09,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 21:38:09,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 21:38:09,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 21:38:09,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 21:38:09,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:38:09" (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 [2020-10-21 21:38:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-21 21:38:09,760 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-21 21:38:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 21:38:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 21:38:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 21:38:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 21:38:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 21:38:09,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 21:38:09,763 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 21:38:10,128 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 21:38:10,129 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-21 21:38:10,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 09:38:10 BoogieIcfgContainer [2020-10-21 21:38:10,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 21:38:10,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 21:38:10,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 21:38:10,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 21:38:10,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 09:38:08" (1/3) ... [2020-10-21 21:38:10,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2802b871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 09:38:10, skipping insertion in model container [2020-10-21 21:38:10,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:38:09" (2/3) ... [2020-10-21 21:38:10,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2802b871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 09:38:10, skipping insertion in model container [2020-10-21 21:38:10,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 09:38:10" (3/3) ... [2020-10-21 21:38:10,142 INFO L111 eAbstractionObserver]: Analyzing ICFG 13_unverif.i [2020-10-21 21:38:10,155 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 21:38:10,155 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 21:38:10,163 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 21:38:10,163 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 21:38:10,191 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,191 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,192 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,192 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,192 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,193 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,193 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,193 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,194 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,195 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,195 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,195 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,196 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,196 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,196 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,200 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,202 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,202 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:10,207 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 21:38:10,218 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-21 21:38:10,237 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 21:38:10,237 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 21:38:10,238 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 21:38:10,238 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 21:38:10,238 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 21:38:10,238 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 21:38:10,238 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 21:38:10,238 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 21:38:10,250 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 21:38:10,253 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 41 transitions, 87 flow [2020-10-21 21:38:10,255 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 41 transitions, 87 flow [2020-10-21 21:38:10,256 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 40 places, 41 transitions, 87 flow [2020-10-21 21:38:10,292 INFO L129 PetriNetUnfolder]: 5/49 cut-off events. [2020-10-21 21:38:10,293 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 21:38:10,298 INFO L80 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 49 events. 5/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 27. Up to 4 conditions per place. [2020-10-21 21:38:10,300 INFO L116 LiptonReduction]: Number of co-enabled transitions 360 [2020-10-21 21:38:11,409 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-10-21 21:38:11,534 INFO L131 LiptonReduction]: Checked pairs total: 359 [2020-10-21 21:38:11,535 INFO L133 LiptonReduction]: Total number of compositions: 42 [2020-10-21 21:38:11,542 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 12 places, 10 transitions, 25 flow [2020-10-21 21:38:11,552 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 24 states. [2020-10-21 21:38:11,554 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-10-21 21:38:11,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-21 21:38:11,561 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:11,562 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-21 21:38:11,563 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-21 21:38:11,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:11,569 INFO L82 PathProgramCache]: Analyzing trace with hash 206391350, now seen corresponding path program 1 times [2020-10-21 21:38:11,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:11,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641372927] [2020-10-21 21:38:11,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:38:11,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:38:11,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641372927] [2020-10-21 21:38:11,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:38:11,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 21:38:11,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913872709] [2020-10-21 21:38:11,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:38:11,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:38:11,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:38:11,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:38:11,946 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 4 states. [2020-10-21 21:38:11,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:38:11,991 INFO L93 Difference]: Finished difference Result 23 states and 38 transitions. [2020-10-21 21:38:11,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 21:38:11,993 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-10-21 21:38:11,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:38:12,006 INFO L225 Difference]: With dead ends: 23 [2020-10-21 21:38:12,006 INFO L226 Difference]: Without dead ends: 23 [2020-10-21 21:38:12,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:38:12,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-21 21:38:12,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-21 21:38:12,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-21 21:38:12,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 38 transitions. [2020-10-21 21:38:12,071 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 38 transitions. Word has length 5 [2020-10-21 21:38:12,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:38:12,072 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 38 transitions. [2020-10-21 21:38:12,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:38:12,072 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 38 transitions. [2020-10-21 21:38:12,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 21:38:12,073 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:12,073 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-21 21:38:12,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 21:38:12,074 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-21 21:38:12,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:12,075 INFO L82 PathProgramCache]: Analyzing trace with hash 2103165344, now seen corresponding path program 1 times [2020-10-21 21:38:12,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:12,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818232144] [2020-10-21 21:38:12,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:38:12,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:38:12,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818232144] [2020-10-21 21:38:12,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018086391] [2020-10-21 21:38:12,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 21:38:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:38:12,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-21 21:38:12,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 21:38:12,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:38:12,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 21:38:12,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2020-10-21 21:38:12,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919432667] [2020-10-21 21:38:12,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 21:38:12,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:38:12,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 21:38:12,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-21 21:38:12,377 INFO L87 Difference]: Start difference. First operand 23 states and 38 transitions. Second operand 6 states. [2020-10-21 21:38:12,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:38:12,476 INFO L93 Difference]: Finished difference Result 23 states and 38 transitions. [2020-10-21 21:38:12,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 21:38:12,477 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2020-10-21 21:38:12,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:38:12,478 INFO L225 Difference]: With dead ends: 23 [2020-10-21 21:38:12,478 INFO L226 Difference]: Without dead ends: 23 [2020-10-21 21:38:12,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 21:38:12,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-21 21:38:12,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 15. [2020-10-21 21:38:12,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-21 21:38:12,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 24 transitions. [2020-10-21 21:38:12,484 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 24 transitions. Word has length 6 [2020-10-21 21:38:12,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:38:12,484 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 24 transitions. [2020-10-21 21:38:12,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 21:38:12,484 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 24 transitions. [2020-10-21 21:38:12,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 21:38:12,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:12,485 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-21 21:38:12,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-10-21 21:38:12,697 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-21 21:38:12,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:12,698 INFO L82 PathProgramCache]: Analyzing trace with hash 2103072290, now seen corresponding path program 1 times [2020-10-21 21:38:12,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:12,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77580001] [2020-10-21 21:38:12,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 21:38:12,720 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 21:38:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 21:38:12,731 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 21:38:12,750 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 21:38:12,750 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 21:38:12,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 21:38:12,752 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 21:38:12,752 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-21 21:38:12,760 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,760 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,760 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,761 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,761 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,761 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,761 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,762 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,762 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,762 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,762 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,762 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,763 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,763 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,763 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,763 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,763 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,764 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,764 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,764 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,766 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,766 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,767 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,767 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,768 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,769 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,770 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,770 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,770 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,771 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,771 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,771 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,776 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,776 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,777 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,777 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,777 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,778 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,778 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,778 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,778 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,778 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,779 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,782 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,783 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,783 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,783 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,783 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,783 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,784 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,784 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,784 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:12,787 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 21:38:12,787 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 21:38:12,787 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 21:38:12,787 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 21:38:12,788 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 21:38:12,788 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 21:38:12,788 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 21:38:12,788 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 21:38:12,788 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 21:38:12,788 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 21:38:12,792 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 21:38:12,792 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 60 transitions, 132 flow [2020-10-21 21:38:12,793 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 60 transitions, 132 flow [2020-10-21 21:38:12,793 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 58 places, 60 transitions, 132 flow [2020-10-21 21:38:12,811 INFO L129 PetriNetUnfolder]: 9/77 cut-off events. [2020-10-21 21:38:12,811 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-21 21:38:12,814 INFO L80 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 9/77 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 163 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 50. Up to 6 conditions per place. [2020-10-21 21:38:12,817 INFO L116 LiptonReduction]: Number of co-enabled transitions 1404 [2020-10-21 21:38:13,890 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-10-21 21:38:13,958 INFO L131 LiptonReduction]: Checked pairs total: 3066 [2020-10-21 21:38:13,958 INFO L133 LiptonReduction]: Total number of compositions: 55 [2020-10-21 21:38:13,958 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 21 transitions, 54 flow [2020-10-21 21:38:13,970 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 208 states. [2020-10-21 21:38:13,971 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2020-10-21 21:38:13,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-21 21:38:13,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:13,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:38:13,973 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:38:13,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:13,973 INFO L82 PathProgramCache]: Analyzing trace with hash 928030147, now seen corresponding path program 1 times [2020-10-21 21:38:13,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:13,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132941182] [2020-10-21 21:38:13,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:38:14,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:38:14,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132941182] [2020-10-21 21:38:14,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:38:14,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:38:14,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113593627] [2020-10-21 21:38:14,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:38:14,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:38:14,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:38:14,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:38:14,092 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 5 states. [2020-10-21 21:38:14,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:38:14,167 INFO L93 Difference]: Finished difference Result 251 states and 667 transitions. [2020-10-21 21:38:14,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:38:14,168 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-21 21:38:14,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:38:14,176 INFO L225 Difference]: With dead ends: 251 [2020-10-21 21:38:14,176 INFO L226 Difference]: Without dead ends: 251 [2020-10-21 21:38:14,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:38:14,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-10-21 21:38:14,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 211. [2020-10-21 21:38:14,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-10-21 21:38:14,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 561 transitions. [2020-10-21 21:38:14,217 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 561 transitions. Word has length 7 [2020-10-21 21:38:14,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:38:14,217 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 561 transitions. [2020-10-21 21:38:14,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:38:14,217 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 561 transitions. [2020-10-21 21:38:14,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 21:38:14,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:14,220 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:38:14,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 21:38:14,220 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:38:14,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:14,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1516251751, now seen corresponding path program 1 times [2020-10-21 21:38:14,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:14,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363628054] [2020-10-21 21:38:14,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:38:14,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:38:14,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363628054] [2020-10-21 21:38:14,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:38:14,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:38:14,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679185731] [2020-10-21 21:38:14,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:38:14,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:38:14,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:38:14,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:38:14,322 INFO L87 Difference]: Start difference. First operand 211 states and 561 transitions. Second operand 4 states. [2020-10-21 21:38:14,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:38:14,402 INFO L93 Difference]: Finished difference Result 232 states and 621 transitions. [2020-10-21 21:38:14,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 21:38:14,402 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-21 21:38:14,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:38:14,405 INFO L225 Difference]: With dead ends: 232 [2020-10-21 21:38:14,406 INFO L226 Difference]: Without dead ends: 232 [2020-10-21 21:38:14,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:38:14,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-21 21:38:14,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 182. [2020-10-21 21:38:14,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-21 21:38:14,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 488 transitions. [2020-10-21 21:38:14,426 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 488 transitions. Word has length 9 [2020-10-21 21:38:14,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:38:14,426 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 488 transitions. [2020-10-21 21:38:14,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:38:14,426 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 488 transitions. [2020-10-21 21:38:14,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 21:38:14,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:14,427 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2020-10-21 21:38:14,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 21:38:14,428 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:38:14,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:14,428 INFO L82 PathProgramCache]: Analyzing trace with hash -410756513, now seen corresponding path program 1 times [2020-10-21 21:38:14,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:14,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714959011] [2020-10-21 21:38:14,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 21:38:14,441 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 21:38:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 21:38:14,451 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 21:38:14,456 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 21:38:14,456 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 21:38:14,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 21:38:14,457 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 21:38:14,458 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-21 21:38:14,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,487 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,487 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,487 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,488 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,488 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,488 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,488 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,488 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,488 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,489 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,489 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,489 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,489 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,489 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,491 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,491 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,491 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,493 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,493 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,493 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,494 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,494 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,494 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,494 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,494 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,495 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,495 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,495 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,495 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,495 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,495 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,496 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,496 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,496 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,497 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,497 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,497 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,497 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,497 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,497 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,498 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,499 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,499 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,499 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,500 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,500 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,500 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,500 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,500 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,500 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,502 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,502 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,503 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,503 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,503 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,503 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,503 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,503 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,504 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:14,506 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 21:38:14,506 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-21 21:38:14,506 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 21:38:14,507 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 21:38:14,507 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 21:38:14,507 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 21:38:14,507 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 21:38:14,507 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 21:38:14,507 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 21:38:14,507 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 21:38:14,509 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 21:38:14,509 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 79 transitions, 179 flow [2020-10-21 21:38:14,509 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 79 transitions, 179 flow [2020-10-21 21:38:14,509 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 79 transitions, 179 flow [2020-10-21 21:38:14,529 INFO L129 PetriNetUnfolder]: 13/105 cut-off events. [2020-10-21 21:38:14,529 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-21 21:38:14,531 INFO L80 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 105 events. 13/105 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 272 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 81. Up to 8 conditions per place. [2020-10-21 21:38:14,534 INFO L116 LiptonReduction]: Number of co-enabled transitions 3132 [2020-10-21 21:38:15,863 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2020-10-21 21:38:15,991 INFO L131 LiptonReduction]: Checked pairs total: 6233 [2020-10-21 21:38:15,992 INFO L133 LiptonReduction]: Total number of compositions: 74 [2020-10-21 21:38:15,992 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 29 transitions, 79 flow [2020-10-21 21:38:16,066 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1252 states. [2020-10-21 21:38:16,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states. [2020-10-21 21:38:16,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-21 21:38:16,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:16,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:38:16,068 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:38:16,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:16,069 INFO L82 PathProgramCache]: Analyzing trace with hash -93536414, now seen corresponding path program 1 times [2020-10-21 21:38:16,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:16,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851983845] [2020-10-21 21:38:16,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:38:16,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:38:16,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851983845] [2020-10-21 21:38:16,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:38:16,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:38:16,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294233149] [2020-10-21 21:38:16,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:38:16,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:38:16,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:38:16,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:38:16,170 INFO L87 Difference]: Start difference. First operand 1252 states. Second operand 5 states. [2020-10-21 21:38:16,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:38:16,267 INFO L93 Difference]: Finished difference Result 1547 states and 5625 transitions. [2020-10-21 21:38:16,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:38:16,268 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-21 21:38:16,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:38:16,284 INFO L225 Difference]: With dead ends: 1547 [2020-10-21 21:38:16,284 INFO L226 Difference]: Without dead ends: 1547 [2020-10-21 21:38:16,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:38:16,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2020-10-21 21:38:16,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1213. [2020-10-21 21:38:16,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1213 states. [2020-10-21 21:38:16,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 4426 transitions. [2020-10-21 21:38:16,353 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 4426 transitions. Word has length 7 [2020-10-21 21:38:16,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:38:16,353 INFO L481 AbstractCegarLoop]: Abstraction has 1213 states and 4426 transitions. [2020-10-21 21:38:16,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:38:16,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 4426 transitions. [2020-10-21 21:38:16,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 21:38:16,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:16,354 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:38:16,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 21:38:16,355 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:38:16,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:16,355 INFO L82 PathProgramCache]: Analyzing trace with hash 305789591, now seen corresponding path program 1 times [2020-10-21 21:38:16,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:16,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509087609] [2020-10-21 21:38:16,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:38:16,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:38:16,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509087609] [2020-10-21 21:38:16,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:38:16,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:38:16,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719983448] [2020-10-21 21:38:16,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:38:16,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:38:16,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:38:16,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:38:16,429 INFO L87 Difference]: Start difference. First operand 1213 states and 4426 transitions. Second operand 4 states. [2020-10-21 21:38:16,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:38:16,563 INFO L93 Difference]: Finished difference Result 1516 states and 5554 transitions. [2020-10-21 21:38:16,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 21:38:16,564 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-21 21:38:16,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:38:16,577 INFO L225 Difference]: With dead ends: 1516 [2020-10-21 21:38:16,577 INFO L226 Difference]: Without dead ends: 1516 [2020-10-21 21:38:16,578 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:38:16,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2020-10-21 21:38:16,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1241. [2020-10-21 21:38:16,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1241 states. [2020-10-21 21:38:16,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 4558 transitions. [2020-10-21 21:38:16,640 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 4558 transitions. Word has length 9 [2020-10-21 21:38:16,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:38:16,641 INFO L481 AbstractCegarLoop]: Abstraction has 1241 states and 4558 transitions. [2020-10-21 21:38:16,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:38:16,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 4558 transitions. [2020-10-21 21:38:16,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 21:38:16,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:16,647 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:38:16,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 21:38:16,648 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:38:16,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:16,648 INFO L82 PathProgramCache]: Analyzing trace with hash 20254021, now seen corresponding path program 1 times [2020-10-21 21:38:16,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:16,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684461581] [2020-10-21 21:38:16,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:38:16,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 21:38:16,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684461581] [2020-10-21 21:38:16,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:38:16,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:38:16,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642695567] [2020-10-21 21:38:16,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:38:16,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:38:16,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:38:16,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:38:16,771 INFO L87 Difference]: Start difference. First operand 1241 states and 4558 transitions. Second operand 5 states. [2020-10-21 21:38:16,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:38:16,861 INFO L93 Difference]: Finished difference Result 1685 states and 6153 transitions. [2020-10-21 21:38:16,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:38:16,862 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-21 21:38:16,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:38:16,877 INFO L225 Difference]: With dead ends: 1685 [2020-10-21 21:38:16,877 INFO L226 Difference]: Without dead ends: 1685 [2020-10-21 21:38:16,879 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:38:16,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2020-10-21 21:38:16,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1404. [2020-10-21 21:38:16,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1404 states. [2020-10-21 21:38:16,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5142 transitions. [2020-10-21 21:38:16,940 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5142 transitions. Word has length 10 [2020-10-21 21:38:16,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:38:16,942 INFO L481 AbstractCegarLoop]: Abstraction has 1404 states and 5142 transitions. [2020-10-21 21:38:16,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:38:16,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5142 transitions. [2020-10-21 21:38:16,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 21:38:16,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:16,944 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:38:16,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-21 21:38:16,945 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:38:16,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:16,945 INFO L82 PathProgramCache]: Analyzing trace with hash -2010762090, now seen corresponding path program 1 times [2020-10-21 21:38:16,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:16,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695238432] [2020-10-21 21:38:16,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:38:17,045 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 21:38:17,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695238432] [2020-10-21 21:38:17,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:38:17,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:38:17,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657880999] [2020-10-21 21:38:17,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:38:17,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:38:17,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:38:17,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:38:17,048 INFO L87 Difference]: Start difference. First operand 1404 states and 5142 transitions. Second operand 4 states. [2020-10-21 21:38:17,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:38:17,157 INFO L93 Difference]: Finished difference Result 1785 states and 6555 transitions. [2020-10-21 21:38:17,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 21:38:17,158 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-21 21:38:17,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:38:17,173 INFO L225 Difference]: With dead ends: 1785 [2020-10-21 21:38:17,174 INFO L226 Difference]: Without dead ends: 1785 [2020-10-21 21:38:17,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:38:17,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2020-10-21 21:38:17,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1545. [2020-10-21 21:38:17,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1545 states. [2020-10-21 21:38:17,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 5692 transitions. [2020-10-21 21:38:17,240 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 5692 transitions. Word has length 12 [2020-10-21 21:38:17,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:38:17,240 INFO L481 AbstractCegarLoop]: Abstraction has 1545 states and 5692 transitions. [2020-10-21 21:38:17,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:38:17,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 5692 transitions. [2020-10-21 21:38:17,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 21:38:17,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:17,242 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2020-10-21 21:38:17,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-21 21:38:17,242 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:38:17,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:17,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1735493987, now seen corresponding path program 1 times [2020-10-21 21:38:17,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:17,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548965254] [2020-10-21 21:38:17,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 21:38:17,253 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 21:38:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 21:38:17,260 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 21:38:17,266 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 21:38:17,266 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 21:38:17,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-21 21:38:17,267 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 21:38:17,267 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-21 21:38:17,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,293 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,294 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,295 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,296 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,296 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,296 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,298 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,298 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,298 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,298 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,299 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,299 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,299 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,300 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,300 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,300 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,301 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,301 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,301 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,301 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,301 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,301 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,302 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,302 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,302 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,302 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,302 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,303 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,303 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,303 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,303 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,303 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,304 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,305 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,305 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,305 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,305 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,305 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,306 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,306 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,306 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,307 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,307 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,307 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,307 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,308 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,308 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,308 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,308 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,308 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,309 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,309 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,310 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,310 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,310 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,310 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,310 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,310 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,310 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:17,312 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 21:38:17,312 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-21 21:38:17,312 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 21:38:17,312 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 21:38:17,312 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 21:38:17,312 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 21:38:17,313 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 21:38:17,313 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 21:38:17,313 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 21:38:17,313 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 21:38:17,314 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 21:38:17,314 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 98 transitions, 228 flow [2020-10-21 21:38:17,314 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 98 transitions, 228 flow [2020-10-21 21:38:17,315 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 94 places, 98 transitions, 228 flow [2020-10-21 21:38:17,339 INFO L129 PetriNetUnfolder]: 17/133 cut-off events. [2020-10-21 21:38:17,340 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-21 21:38:17,342 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 133 events. 17/133 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 390 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 113. Up to 10 conditions per place. [2020-10-21 21:38:17,349 INFO L116 LiptonReduction]: Number of co-enabled transitions 5544 [2020-10-21 21:38:18,960 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-10-21 21:38:19,048 INFO L131 LiptonReduction]: Checked pairs total: 12412 [2020-10-21 21:38:19,048 INFO L133 LiptonReduction]: Total number of compositions: 93 [2020-10-21 21:38:19,049 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 36 transitions, 104 flow [2020-10-21 21:38:19,580 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 7516 states. [2020-10-21 21:38:19,580 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states. [2020-10-21 21:38:19,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-21 21:38:19,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:19,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:38:19,581 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-21 21:38:19,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:19,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1292731378, now seen corresponding path program 1 times [2020-10-21 21:38:19,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:19,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504683791] [2020-10-21 21:38:19,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:38:19,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:38:19,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504683791] [2020-10-21 21:38:19,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:38:19,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:38:19,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918957] [2020-10-21 21:38:19,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:38:19,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:38:19,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:38:19,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:38:19,640 INFO L87 Difference]: Start difference. First operand 7516 states. Second operand 5 states. [2020-10-21 21:38:19,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:38:19,813 INFO L93 Difference]: Finished difference Result 8945 states and 41357 transitions. [2020-10-21 21:38:19,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:38:19,814 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-21 21:38:19,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:38:19,891 INFO L225 Difference]: With dead ends: 8945 [2020-10-21 21:38:19,892 INFO L226 Difference]: Without dead ends: 8945 [2020-10-21 21:38:19,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:38:20,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8945 states. [2020-10-21 21:38:20,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8945 to 6943. [2020-10-21 21:38:20,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6943 states. [2020-10-21 21:38:20,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6943 states to 6943 states and 32243 transitions. [2020-10-21 21:38:20,377 INFO L78 Accepts]: Start accepts. Automaton has 6943 states and 32243 transitions. Word has length 7 [2020-10-21 21:38:20,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:38:20,377 INFO L481 AbstractCegarLoop]: Abstraction has 6943 states and 32243 transitions. [2020-10-21 21:38:20,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:38:20,378 INFO L276 IsEmpty]: Start isEmpty. Operand 6943 states and 32243 transitions. [2020-10-21 21:38:20,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 21:38:20,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:20,378 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:38:20,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-21 21:38:20,378 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-21 21:38:20,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:20,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1069272430, now seen corresponding path program 1 times [2020-10-21 21:38:20,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:20,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526332112] [2020-10-21 21:38:20,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:38:20,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:38:20,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526332112] [2020-10-21 21:38:20,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:38:20,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:38:20,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998183670] [2020-10-21 21:38:20,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:38:20,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:38:20,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:38:20,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:38:20,424 INFO L87 Difference]: Start difference. First operand 6943 states and 32243 transitions. Second operand 4 states. [2020-10-21 21:38:20,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:38:20,612 INFO L93 Difference]: Finished difference Result 9334 states and 43415 transitions. [2020-10-21 21:38:20,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 21:38:20,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-21 21:38:20,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:38:20,664 INFO L225 Difference]: With dead ends: 9334 [2020-10-21 21:38:20,665 INFO L226 Difference]: Without dead ends: 9334 [2020-10-21 21:38:20,665 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:38:21,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9334 states. [2020-10-21 21:38:21,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9334 to 7850. [2020-10-21 21:38:21,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7850 states. [2020-10-21 21:38:21,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7850 states to 7850 states and 36573 transitions. [2020-10-21 21:38:21,667 INFO L78 Accepts]: Start accepts. Automaton has 7850 states and 36573 transitions. Word has length 9 [2020-10-21 21:38:21,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:38:21,667 INFO L481 AbstractCegarLoop]: Abstraction has 7850 states and 36573 transitions. [2020-10-21 21:38:21,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:38:21,667 INFO L276 IsEmpty]: Start isEmpty. Operand 7850 states and 36573 transitions. [2020-10-21 21:38:21,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 21:38:21,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:21,668 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:38:21,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-21 21:38:21,668 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-21 21:38:21,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:21,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1072827402, now seen corresponding path program 1 times [2020-10-21 21:38:21,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:21,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311771942] [2020-10-21 21:38:21,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:38:21,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 21:38:21,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311771942] [2020-10-21 21:38:21,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:38:21,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:38:21,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526868900] [2020-10-21 21:38:21,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:38:21,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:38:21,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:38:21,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:38:21,714 INFO L87 Difference]: Start difference. First operand 7850 states and 36573 transitions. Second operand 5 states. [2020-10-21 21:38:21,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:38:21,869 INFO L93 Difference]: Finished difference Result 10343 states and 47933 transitions. [2020-10-21 21:38:21,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:38:21,870 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-21 21:38:21,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:38:21,928 INFO L225 Difference]: With dead ends: 10343 [2020-10-21 21:38:21,929 INFO L226 Difference]: Without dead ends: 10343 [2020-10-21 21:38:21,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:38:22,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10343 states. [2020-10-21 21:38:22,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10343 to 8547. [2020-10-21 21:38:22,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8547 states. [2020-10-21 21:38:22,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8547 states to 8547 states and 39726 transitions. [2020-10-21 21:38:22,506 INFO L78 Accepts]: Start accepts. Automaton has 8547 states and 39726 transitions. Word has length 10 [2020-10-21 21:38:22,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:38:22,507 INFO L481 AbstractCegarLoop]: Abstraction has 8547 states and 39726 transitions. [2020-10-21 21:38:22,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:38:22,507 INFO L276 IsEmpty]: Start isEmpty. Operand 8547 states and 39726 transitions. [2020-10-21 21:38:22,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 21:38:22,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:22,508 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:38:22,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-21 21:38:22,508 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-21 21:38:22,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:22,509 INFO L82 PathProgramCache]: Analyzing trace with hash 194941860, now seen corresponding path program 1 times [2020-10-21 21:38:22,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:22,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020044323] [2020-10-21 21:38:22,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:38:22,552 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 21:38:22,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020044323] [2020-10-21 21:38:22,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:38:22,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:38:22,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756875767] [2020-10-21 21:38:22,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:38:22,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:38:22,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:38:22,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:38:22,554 INFO L87 Difference]: Start difference. First operand 8547 states and 39726 transitions. Second operand 4 states. [2020-10-21 21:38:22,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:38:22,769 INFO L93 Difference]: Finished difference Result 11574 states and 53865 transitions. [2020-10-21 21:38:22,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 21:38:22,770 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-21 21:38:22,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:38:22,821 INFO L225 Difference]: With dead ends: 11574 [2020-10-21 21:38:22,822 INFO L226 Difference]: Without dead ends: 11574 [2020-10-21 21:38:22,822 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:38:23,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11574 states. [2020-10-21 21:38:23,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11574 to 10068. [2020-10-21 21:38:23,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10068 states. [2020-10-21 21:38:23,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10068 states to 10068 states and 46954 transitions. [2020-10-21 21:38:23,405 INFO L78 Accepts]: Start accepts. Automaton has 10068 states and 46954 transitions. Word has length 12 [2020-10-21 21:38:23,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:38:23,406 INFO L481 AbstractCegarLoop]: Abstraction has 10068 states and 46954 transitions. [2020-10-21 21:38:23,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:38:23,406 INFO L276 IsEmpty]: Start isEmpty. Operand 10068 states and 46954 transitions. [2020-10-21 21:38:23,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 21:38:23,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:23,407 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:38:23,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-21 21:38:23,407 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-21 21:38:23,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:23,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1125055327, now seen corresponding path program 1 times [2020-10-21 21:38:23,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:23,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257891418] [2020-10-21 21:38:23,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:38:23,460 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-21 21:38:23,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257891418] [2020-10-21 21:38:23,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:38:23,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:38:23,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683765789] [2020-10-21 21:38:23,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:38:23,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:38:23,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:38:23,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:38:23,462 INFO L87 Difference]: Start difference. First operand 10068 states and 46954 transitions. Second operand 5 states. [2020-10-21 21:38:23,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:38:23,629 INFO L93 Difference]: Finished difference Result 12128 states and 56330 transitions. [2020-10-21 21:38:23,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:38:23,630 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-21 21:38:23,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:38:23,678 INFO L225 Difference]: With dead ends: 12128 [2020-10-21 21:38:23,678 INFO L226 Difference]: Without dead ends: 12128 [2020-10-21 21:38:23,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:38:23,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12128 states. [2020-10-21 21:38:24,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12128 to 10579. [2020-10-21 21:38:24,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10579 states. [2020-10-21 21:38:24,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10579 states to 10579 states and 49194 transitions. [2020-10-21 21:38:24,826 INFO L78 Accepts]: Start accepts. Automaton has 10579 states and 49194 transitions. Word has length 13 [2020-10-21 21:38:24,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:38:24,826 INFO L481 AbstractCegarLoop]: Abstraction has 10579 states and 49194 transitions. [2020-10-21 21:38:24,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:38:24,827 INFO L276 IsEmpty]: Start isEmpty. Operand 10579 states and 49194 transitions. [2020-10-21 21:38:24,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 21:38:24,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:24,828 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:38:24,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-21 21:38:24,829 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-21 21:38:24,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:24,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1749638518, now seen corresponding path program 1 times [2020-10-21 21:38:24,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:24,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71058689] [2020-10-21 21:38:24,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:38:24,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 21:38:24,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71058689] [2020-10-21 21:38:24,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:38:24,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 21:38:24,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250079326] [2020-10-21 21:38:24,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:38:24,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:38:24,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:38:24,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:38:24,912 INFO L87 Difference]: Start difference. First operand 10579 states and 49194 transitions. Second operand 5 states. [2020-10-21 21:38:25,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:38:25,003 INFO L93 Difference]: Finished difference Result 2356 states and 8479 transitions. [2020-10-21 21:38:25,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:38:25,004 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-21 21:38:25,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:38:25,011 INFO L225 Difference]: With dead ends: 2356 [2020-10-21 21:38:25,011 INFO L226 Difference]: Without dead ends: 2356 [2020-10-21 21:38:25,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:38:25,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2020-10-21 21:38:25,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 1991. [2020-10-21 21:38:25,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1991 states. [2020-10-21 21:38:25,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 7107 transitions. [2020-10-21 21:38:25,075 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 7107 transitions. Word has length 13 [2020-10-21 21:38:25,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:38:25,077 INFO L481 AbstractCegarLoop]: Abstraction has 1991 states and 7107 transitions. [2020-10-21 21:38:25,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:38:25,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 7107 transitions. [2020-10-21 21:38:25,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 21:38:25,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:25,079 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2020-10-21 21:38:25,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-21 21:38:25,079 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-21 21:38:25,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:25,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1141803493, now seen corresponding path program 1 times [2020-10-21 21:38:25,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:25,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631229900] [2020-10-21 21:38:25,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:25,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 21:38:25,102 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 21:38:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 21:38:25,116 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 21:38:25,130 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 21:38:25,132 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 21:38:25,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-21 21:38:25,133 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 21:38:25,133 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-21 21:38:25,145 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,145 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,147 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,147 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,147 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,148 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,148 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,148 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,148 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,148 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,148 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,149 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,149 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,149 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,149 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,149 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,149 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,151 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,151 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,151 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,151 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,152 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,152 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,152 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,152 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,152 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,152 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,153 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,154 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,154 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,154 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,154 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,155 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,155 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,155 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,155 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,155 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,155 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,155 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,156 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,156 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,156 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,156 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,156 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,156 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,157 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,157 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,157 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,157 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,157 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,157 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,157 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,158 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,158 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,158 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,158 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,158 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,158 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,158 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,158 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,159 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,159 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,159 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,159 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,159 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,159 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,160 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,160 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,160 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,165 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,165 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,166 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,166 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,166 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,166 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,166 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,166 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,167 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,167 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,167 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,168 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,168 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,168 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,168 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,168 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,168 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,169 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,169 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,170 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,170 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,170 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,171 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,171 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,171 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,171 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,171 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,171 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,172 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,173 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,173 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,173 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,173 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,173 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,173 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,173 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,174 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,175 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,176 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,176 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,176 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,176 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,176 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,176 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,176 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,177 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,178 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,178 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,178 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,178 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,178 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,179 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,179 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:38:25,180 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 21:38:25,180 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-21 21:38:25,180 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 21:38:25,181 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 21:38:25,181 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 21:38:25,181 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 21:38:25,181 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 21:38:25,181 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 21:38:25,181 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 21:38:25,181 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 21:38:25,184 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 21:38:25,185 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 117 transitions, 279 flow [2020-10-21 21:38:25,185 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 117 transitions, 279 flow [2020-10-21 21:38:25,185 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 112 places, 117 transitions, 279 flow [2020-10-21 21:38:25,219 INFO L129 PetriNetUnfolder]: 21/161 cut-off events. [2020-10-21 21:38:25,219 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-21 21:38:25,221 INFO L80 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 161 events. 21/161 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 491 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 146. Up to 12 conditions per place. [2020-10-21 21:38:25,231 INFO L116 LiptonReduction]: Number of co-enabled transitions 8640 [2020-10-21 21:38:26,336 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-10-21 21:38:27,194 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2020-10-21 21:38:27,269 INFO L131 LiptonReduction]: Checked pairs total: 20977 [2020-10-21 21:38:27,269 INFO L133 LiptonReduction]: Total number of compositions: 108 [2020-10-21 21:38:27,269 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 45 transitions, 135 flow [2020-10-21 21:38:35,113 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 45100 states. [2020-10-21 21:38:35,113 INFO L276 IsEmpty]: Start isEmpty. Operand 45100 states. [2020-10-21 21:38:35,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-21 21:38:35,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:35,113 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:38:35,114 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:38:35,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:35,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1508580595, now seen corresponding path program 1 times [2020-10-21 21:38:35,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:35,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056405991] [2020-10-21 21:38:35,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:38:35,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:38:35,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056405991] [2020-10-21 21:38:35,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:38:35,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:38:35,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475087367] [2020-10-21 21:38:35,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:38:35,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:38:35,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:38:35,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:38:35,160 INFO L87 Difference]: Start difference. First operand 45100 states. Second operand 5 states. [2020-10-21 21:38:37,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:38:37,005 INFO L93 Difference]: Finished difference Result 50507 states and 283723 transitions. [2020-10-21 21:38:37,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:38:37,006 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-21 21:38:37,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:38:37,220 INFO L225 Difference]: With dead ends: 50507 [2020-10-21 21:38:37,221 INFO L226 Difference]: Without dead ends: 50507 [2020-10-21 21:38:37,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:38:38,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50507 states. [2020-10-21 21:38:39,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50507 to 39997. [2020-10-21 21:38:39,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39997 states. [2020-10-21 21:38:40,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39997 states to 39997 states and 225588 transitions. [2020-10-21 21:38:40,158 INFO L78 Accepts]: Start accepts. Automaton has 39997 states and 225588 transitions. Word has length 7 [2020-10-21 21:38:40,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:38:40,159 INFO L481 AbstractCegarLoop]: Abstraction has 39997 states and 225588 transitions. [2020-10-21 21:38:40,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:38:40,159 INFO L276 IsEmpty]: Start isEmpty. Operand 39997 states and 225588 transitions. [2020-10-21 21:38:40,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 21:38:40,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:40,159 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:38:40,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-21 21:38:40,159 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:38:40,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:40,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1953049216, now seen corresponding path program 1 times [2020-10-21 21:38:40,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:40,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744963966] [2020-10-21 21:38:40,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:38:40,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:38:40,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744963966] [2020-10-21 21:38:40,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:38:40,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:38:40,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198972991] [2020-10-21 21:38:40,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:38:40,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:38:40,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:38:40,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:38:40,209 INFO L87 Difference]: Start difference. First operand 39997 states and 225588 transitions. Second operand 4 states. [2020-10-21 21:38:40,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:38:40,751 INFO L93 Difference]: Finished difference Result 56104 states and 316572 transitions. [2020-10-21 21:38:40,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 21:38:40,752 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-21 21:38:40,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:38:40,995 INFO L225 Difference]: With dead ends: 56104 [2020-10-21 21:38:40,996 INFO L226 Difference]: Without dead ends: 56104 [2020-10-21 21:38:40,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:38:45,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56104 states. [2020-10-21 21:38:46,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56104 to 48029. [2020-10-21 21:38:46,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48029 states. [2020-10-21 21:38:46,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48029 states to 48029 states and 271277 transitions. [2020-10-21 21:38:46,618 INFO L78 Accepts]: Start accepts. Automaton has 48029 states and 271277 transitions. Word has length 9 [2020-10-21 21:38:46,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:38:46,618 INFO L481 AbstractCegarLoop]: Abstraction has 48029 states and 271277 transitions. [2020-10-21 21:38:46,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:38:46,618 INFO L276 IsEmpty]: Start isEmpty. Operand 48029 states and 271277 transitions. [2020-10-21 21:38:46,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 21:38:46,618 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:46,619 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:38:46,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-21 21:38:46,619 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:38:46,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:46,619 INFO L82 PathProgramCache]: Analyzing trace with hash -467488833, now seen corresponding path program 1 times [2020-10-21 21:38:46,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:46,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433726664] [2020-10-21 21:38:46,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:38:46,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 21:38:46,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433726664] [2020-10-21 21:38:46,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:38:46,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:38:46,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916065587] [2020-10-21 21:38:46,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:38:46,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:38:46,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:38:46,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:38:46,658 INFO L87 Difference]: Start difference. First operand 48029 states and 271277 transitions. Second operand 5 states. [2020-10-21 21:38:47,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:38:47,975 INFO L93 Difference]: Finished difference Result 60653 states and 341167 transitions. [2020-10-21 21:38:47,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:38:47,975 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-21 21:38:47,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:38:48,246 INFO L225 Difference]: With dead ends: 60653 [2020-10-21 21:38:48,247 INFO L226 Difference]: Without dead ends: 60653 [2020-10-21 21:38:48,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:38:52,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60653 states. [2020-10-21 21:38:53,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60653 to 50928. [2020-10-21 21:38:53,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50928 states. [2020-10-21 21:38:53,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50928 states to 50928 states and 287199 transitions. [2020-10-21 21:38:53,737 INFO L78 Accepts]: Start accepts. Automaton has 50928 states and 287199 transitions. Word has length 10 [2020-10-21 21:38:53,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:38:53,738 INFO L481 AbstractCegarLoop]: Abstraction has 50928 states and 287199 transitions. [2020-10-21 21:38:53,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:38:53,738 INFO L276 IsEmpty]: Start isEmpty. Operand 50928 states and 287199 transitions. [2020-10-21 21:38:53,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 21:38:53,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:38:53,739 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:38:53,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-21 21:38:53,739 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:38:53,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:38:53,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1714785286, now seen corresponding path program 1 times [2020-10-21 21:38:53,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:38:53,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799993416] [2020-10-21 21:38:53,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:38:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:38:53,804 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 21:38:53,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799993416] [2020-10-21 21:38:53,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:38:53,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:38:53,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805752407] [2020-10-21 21:38:53,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:38:53,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:38:53,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:38:53,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:38:53,805 INFO L87 Difference]: Start difference. First operand 50928 states and 287199 transitions. Second operand 4 states. [2020-10-21 21:38:55,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:38:55,250 INFO L93 Difference]: Finished difference Result 71415 states and 402930 transitions. [2020-10-21 21:38:55,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 21:38:55,251 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-21 21:38:55,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:38:55,613 INFO L225 Difference]: With dead ends: 71415 [2020-10-21 21:38:55,613 INFO L226 Difference]: Without dead ends: 71415 [2020-10-21 21:38:55,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:39:00,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71415 states. [2020-10-21 21:39:01,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71415 to 62439. [2020-10-21 21:39:01,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62439 states. [2020-10-21 21:39:01,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62439 states to 62439 states and 352729 transitions. [2020-10-21 21:39:01,867 INFO L78 Accepts]: Start accepts. Automaton has 62439 states and 352729 transitions. Word has length 12 [2020-10-21 21:39:01,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:39:01,868 INFO L481 AbstractCegarLoop]: Abstraction has 62439 states and 352729 transitions. [2020-10-21 21:39:01,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:39:01,868 INFO L276 IsEmpty]: Start isEmpty. Operand 62439 states and 352729 transitions. [2020-10-21 21:39:01,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 21:39:01,868 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:39:01,868 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:39:01,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-21 21:39:01,869 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:39:01,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:39:01,869 INFO L82 PathProgramCache]: Analyzing trace with hash 792574302, now seen corresponding path program 1 times [2020-10-21 21:39:01,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:39:01,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042239763] [2020-10-21 21:39:01,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:39:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:39:01,930 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:39:01,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042239763] [2020-10-21 21:39:01,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160132720] [2020-10-21 21:39:01,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 21:39:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:39:01,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-21 21:39:02,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 21:39:02,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:39:02,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 21:39:02,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-10-21 21:39:02,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518561829] [2020-10-21 21:39:02,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 21:39:02,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:39:02,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 21:39:02,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-21 21:39:02,051 INFO L87 Difference]: Start difference. First operand 62439 states and 352729 transitions. Second operand 6 states. [2020-10-21 21:39:02,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:39:02,289 INFO L93 Difference]: Finished difference Result 8161 states and 34918 transitions. [2020-10-21 21:39:02,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 21:39:02,289 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-21 21:39:02,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:39:02,327 INFO L225 Difference]: With dead ends: 8161 [2020-10-21 21:39:02,327 INFO L226 Difference]: Without dead ends: 8161 [2020-10-21 21:39:02,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-21 21:39:02,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8161 states. [2020-10-21 21:39:02,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8161 to 6538. [2020-10-21 21:39:02,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6538 states. [2020-10-21 21:39:02,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6538 states to 6538 states and 27580 transitions. [2020-10-21 21:39:02,763 INFO L78 Accepts]: Start accepts. Automaton has 6538 states and 27580 transitions. Word has length 13 [2020-10-21 21:39:02,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:39:02,765 INFO L481 AbstractCegarLoop]: Abstraction has 6538 states and 27580 transitions. [2020-10-21 21:39:02,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 21:39:02,765 INFO L276 IsEmpty]: Start isEmpty. Operand 6538 states and 27580 transitions. [2020-10-21 21:39:02,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 21:39:02,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:39:02,766 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forcibly destroying the process [2020-10-21 21:39:03,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-10-21 21:39:03,712 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:39:03,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:39:03,712 INFO L82 PathProgramCache]: Analyzing trace with hash -2054898882, now seen corresponding path program 1 times [2020-10-21 21:39:03,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:39:03,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773261264] [2020-10-21 21:39:03,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:39:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:39:03,762 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-21 21:39:03,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773261264] [2020-10-21 21:39:03,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:39:03,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:39:03,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806930102] [2020-10-21 21:39:03,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:39:03,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:39:03,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:39:03,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:39:03,766 INFO L87 Difference]: Start difference. First operand 6538 states and 27580 transitions. Second operand 5 states. [2020-10-21 21:39:03,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:39:03,924 INFO L93 Difference]: Finished difference Result 11626 states and 49057 transitions. [2020-10-21 21:39:03,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:39:03,924 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-21 21:39:03,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:39:03,953 INFO L225 Difference]: With dead ends: 11626 [2020-10-21 21:39:03,953 INFO L226 Difference]: Without dead ends: 11626 [2020-10-21 21:39:03,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:39:04,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11626 states. [2020-10-21 21:39:04,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11626 to 7402. [2020-10-21 21:39:04,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7402 states. [2020-10-21 21:39:04,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7402 states to 7402 states and 31270 transitions. [2020-10-21 21:39:04,208 INFO L78 Accepts]: Start accepts. Automaton has 7402 states and 31270 transitions. Word has length 13 [2020-10-21 21:39:04,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:39:04,209 INFO L481 AbstractCegarLoop]: Abstraction has 7402 states and 31270 transitions. [2020-10-21 21:39:04,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:39:04,209 INFO L276 IsEmpty]: Start isEmpty. Operand 7402 states and 31270 transitions. [2020-10-21 21:39:04,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 21:39:04,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:39:04,210 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:39:04,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-21 21:39:04,211 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:39:04,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:39:04,211 INFO L82 PathProgramCache]: Analyzing trace with hash 927099207, now seen corresponding path program 1 times [2020-10-21 21:39:04,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:39:04,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199315973] [2020-10-21 21:39:04,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:39:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:39:04,257 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-21 21:39:04,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199315973] [2020-10-21 21:39:04,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:39:04,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:39:04,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97796116] [2020-10-21 21:39:04,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:39:04,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:39:04,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:39:04,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:39:04,260 INFO L87 Difference]: Start difference. First operand 7402 states and 31270 transitions. Second operand 4 states. [2020-10-21 21:39:04,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:39:04,358 INFO L93 Difference]: Finished difference Result 6970 states and 29425 transitions. [2020-10-21 21:39:04,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 21:39:04,359 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-21 21:39:04,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:39:04,382 INFO L225 Difference]: With dead ends: 6970 [2020-10-21 21:39:04,382 INFO L226 Difference]: Without dead ends: 6970 [2020-10-21 21:39:04,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:39:04,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6970 states. [2020-10-21 21:39:04,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6970 to 6106. [2020-10-21 21:39:04,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6106 states. [2020-10-21 21:39:04,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 25735 transitions. [2020-10-21 21:39:04,564 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 25735 transitions. Word has length 15 [2020-10-21 21:39:04,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:39:04,564 INFO L481 AbstractCegarLoop]: Abstraction has 6106 states and 25735 transitions. [2020-10-21 21:39:04,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:39:04,564 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 25735 transitions. [2020-10-21 21:39:04,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 21:39:04,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:39:04,566 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:39:04,566 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-21 21:39:04,566 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:39:04,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:39:04,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1337358875, now seen corresponding path program 1 times [2020-10-21 21:39:04,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:39:04,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671114223] [2020-10-21 21:39:04,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:39:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:39:04,610 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-21 21:39:04,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671114223] [2020-10-21 21:39:04,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:39:04,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:39:04,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986056644] [2020-10-21 21:39:04,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:39:04,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:39:04,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:39:04,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:39:04,612 INFO L87 Difference]: Start difference. First operand 6106 states and 25735 transitions. Second operand 5 states. [2020-10-21 21:39:04,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:39:04,743 INFO L93 Difference]: Finished difference Result 10825 states and 45769 transitions. [2020-10-21 21:39:04,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:39:04,744 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-21 21:39:04,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:39:04,782 INFO L225 Difference]: With dead ends: 10825 [2020-10-21 21:39:04,782 INFO L226 Difference]: Without dead ends: 10825 [2020-10-21 21:39:04,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:39:04,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10825 states. [2020-10-21 21:39:04,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10825 to 6916. [2020-10-21 21:39:04,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6916 states. [2020-10-21 21:39:05,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6916 states to 6916 states and 29245 transitions. [2020-10-21 21:39:05,013 INFO L78 Accepts]: Start accepts. Automaton has 6916 states and 29245 transitions. Word has length 16 [2020-10-21 21:39:05,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:39:05,014 INFO L481 AbstractCegarLoop]: Abstraction has 6916 states and 29245 transitions. [2020-10-21 21:39:05,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:39:05,014 INFO L276 IsEmpty]: Start isEmpty. Operand 6916 states and 29245 transitions. [2020-10-21 21:39:05,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 21:39:05,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:39:05,018 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:39:05,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-21 21:39:05,018 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:39:05,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:39:05,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1006687189, now seen corresponding path program 1 times [2020-10-21 21:39:05,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:39:05,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885790690] [2020-10-21 21:39:05,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:39:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:39:05,076 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-21 21:39:05,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885790690] [2020-10-21 21:39:05,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:39:05,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:39:05,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628620235] [2020-10-21 21:39:05,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:39:05,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:39:05,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:39:05,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:39:05,078 INFO L87 Difference]: Start difference. First operand 6916 states and 29245 transitions. Second operand 4 states. [2020-10-21 21:39:05,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:39:05,163 INFO L93 Difference]: Finished difference Result 6511 states and 27490 transitions. [2020-10-21 21:39:05,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 21:39:05,164 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-21 21:39:05,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:39:05,180 INFO L225 Difference]: With dead ends: 6511 [2020-10-21 21:39:05,180 INFO L226 Difference]: Without dead ends: 6511 [2020-10-21 21:39:05,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:39:05,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6511 states. [2020-10-21 21:39:05,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6511 to 5701. [2020-10-21 21:39:05,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5701 states. [2020-10-21 21:39:05,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5701 states to 5701 states and 23980 transitions. [2020-10-21 21:39:05,343 INFO L78 Accepts]: Start accepts. Automaton has 5701 states and 23980 transitions. Word has length 18 [2020-10-21 21:39:05,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:39:05,344 INFO L481 AbstractCegarLoop]: Abstraction has 5701 states and 23980 transitions. [2020-10-21 21:39:05,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:39:05,344 INFO L276 IsEmpty]: Start isEmpty. Operand 5701 states and 23980 transitions. [2020-10-21 21:39:05,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 21:39:05,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:39:05,348 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:39:05,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-21 21:39:05,348 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:39:05,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:39:05,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1756746001, now seen corresponding path program 1 times [2020-10-21 21:39:05,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:39:05,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035432223] [2020-10-21 21:39:05,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:39:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 21:39:05,357 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 21:39:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 21:39:05,363 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 21:39:05,367 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 21:39:05,368 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 21:39:05,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-21 21:39:05,368 WARN L371 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 21:39:05,369 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-10-21 21:39:05,379 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,379 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,379 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,379 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,379 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,379 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,379 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,380 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,380 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,380 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,380 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,382 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,382 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,382 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,383 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,385 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,385 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,385 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,385 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,386 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,386 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,386 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,386 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,386 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,386 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,386 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,386 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,389 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,389 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,389 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,391 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,391 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,391 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,391 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,391 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,391 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,391 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,392 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,392 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,392 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,392 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,401 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,402 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,402 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,402 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,402 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,402 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,402 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,403 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,403 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,404 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,404 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,404 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,404 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,405 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,405 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,405 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,405 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,405 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,406 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,406 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,407 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,407 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,407 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,407 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,407 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,407 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,408 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,408 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,409 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,409 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,409 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,409 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,409 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,409 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,409 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,410 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,411 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,411 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,411 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,411 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,412 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:39:05,412 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 21:39:05,413 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-21 21:39:05,413 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 21:39:05,413 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 21:39:05,413 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 21:39:05,413 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 21:39:05,413 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 21:39:05,414 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 21:39:05,414 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 21:39:05,414 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 21:39:05,415 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 21:39:05,415 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 136 transitions, 332 flow [2020-10-21 21:39:05,416 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 136 transitions, 332 flow [2020-10-21 21:39:05,416 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 130 places, 136 transitions, 332 flow [2020-10-21 21:39:05,441 INFO L129 PetriNetUnfolder]: 25/189 cut-off events. [2020-10-21 21:39:05,442 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-21 21:39:05,444 INFO L80 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 189 events. 25/189 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 596 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 181. Up to 14 conditions per place. [2020-10-21 21:39:05,456 INFO L116 LiptonReduction]: Number of co-enabled transitions 12420 [2020-10-21 21:39:07,666 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2020-10-21 21:39:07,980 INFO L131 LiptonReduction]: Checked pairs total: 27330 [2020-10-21 21:39:07,980 INFO L133 LiptonReduction]: Total number of compositions: 129 [2020-10-21 21:39:07,981 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 53 transitions, 166 flow Received shutdown request... [2020-10-21 21:42:16,894 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-21 21:42:16,896 WARN L235 ceAbstractionStarter]: Timeout [2020-10-21 21:42:16,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 09:42:16 BasicIcfg [2020-10-21 21:42:16,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 21:42:16,898 INFO L168 Benchmark]: Toolchain (without parser) took 247949.61 ms. Allocated memory was 147.3 MB in the beginning and 3.0 GB in the end (delta: 2.9 GB). Free memory was 102.5 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. [2020-10-21 21:42:16,899 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-21 21:42:16,899 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.46 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 101.7 MB in the beginning and 159.6 MB in the end (delta: -57.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-10-21 21:42:16,900 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.79 ms. Allocated memory is still 203.9 MB. Free memory was 159.6 MB in the beginning and 157.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-21 21:42:16,900 INFO L168 Benchmark]: Boogie Preprocessor took 29.39 ms. Allocated memory is still 203.9 MB. Free memory was 157.6 MB in the beginning and 156.7 MB in the end (delta: 970.9 kB). Peak memory consumption was 970.9 kB. Max. memory is 7.1 GB. [2020-10-21 21:42:16,901 INFO L168 Benchmark]: RCFGBuilder took 434.79 ms. Allocated memory is still 203.9 MB. Free memory was 155.7 MB in the beginning and 133.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-10-21 21:42:16,901 INFO L168 Benchmark]: TraceAbstraction took 246763.51 ms. Allocated memory was 203.9 MB in the beginning and 3.0 GB in the end (delta: 2.8 GB). Free memory was 133.7 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. [2020-10-21 21:42:16,904 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 652.46 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 101.7 MB in the beginning and 159.6 MB in the end (delta: -57.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.79 ms. Allocated memory is still 203.9 MB. Free memory was 159.6 MB in the beginning and 157.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.39 ms. Allocated memory is still 203.9 MB. Free memory was 157.6 MB in the beginning and 156.7 MB in the end (delta: 970.9 kB). Peak memory consumption was 970.9 kB. Max. memory is 7.1 GB. * RCFGBuilder took 434.79 ms. Allocated memory is still 203.9 MB. Free memory was 155.7 MB in the beginning and 133.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 246763.51 ms. Allocated memory was 203.9 MB in the beginning and 3.0 GB in the end (delta: 2.8 GB). Free memory was 133.7 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 241 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 4 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 40 PlacesBefore, 12 PlacesAfterwards, 41 TransitionsBefore, 10 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 4 FixpointIterations, 11 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 3 ChoiceCompositions, 42 TotalNumberOfCompositions, 359 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1062 VarBasedMoverChecksPositive, 50 VarBasedMoverChecksNegative, 25 SemBasedMoverChecksPositive, 25 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 122 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 58 PlacesBefore, 22 PlacesAfterwards, 60 TransitionsBefore, 21 TransitionsAfterwards, 1404 CoEnabledTransitionPairs, 5 FixpointIterations, 11 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 3 ChoiceCompositions, 55 TotalNumberOfCompositions, 3066 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2074 VarBasedMoverChecksPositive, 83 VarBasedMoverChecksNegative, 43 SemBasedMoverChecksPositive, 40 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 167 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 76 PlacesBefore, 30 PlacesAfterwards, 79 TransitionsBefore, 29 TransitionsAfterwards, 3132 CoEnabledTransitionPairs, 4 FixpointIterations, 11 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 4 ChoiceCompositions, 74 TotalNumberOfCompositions, 6233 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3650 VarBasedMoverChecksPositive, 153 VarBasedMoverChecksNegative, 88 SemBasedMoverChecksPositive, 65 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 196 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 94 PlacesBefore, 38 PlacesAfterwards, 98 TransitionsBefore, 36 TransitionsAfterwards, 5544 CoEnabledTransitionPairs, 5 FixpointIterations, 11 TrivialSequentialCompositions, 65 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 6 ChoiceCompositions, 93 TotalNumberOfCompositions, 12412 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 5576 VarBasedMoverChecksPositive, 176 VarBasedMoverChecksNegative, 99 SemBasedMoverChecksPositive, 77 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 381 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.0s, 112 PlacesBefore, 46 PlacesAfterwards, 117 TransitionsBefore, 45 TransitionsAfterwards, 8640 CoEnabledTransitionPairs, 5 FixpointIterations, 11 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 6 ChoiceCompositions, 108 TotalNumberOfCompositions, 20977 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 8204 VarBasedMoverChecksPositive, 359 VarBasedMoverChecksNegative, 256 SemBasedMoverChecksPositive, 103 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.8s, 550 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.5s, 130 PlacesBefore, 54 PlacesAfterwards, 136 TransitionsBefore, 53 TransitionsAfterwards, 12420 CoEnabledTransitionPairs, 4 FixpointIterations, 11 TrivialSequentialCompositions, 89 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 22 ConcurrentYvCompositions, 7 ChoiceCompositions, 129 TotalNumberOfCompositions, 27330 MoverChecksTotal - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 16). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 54 places, 53 transitions, 166 flow. Already constructed 225695 states. Currently 21766 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 6 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 246.4s, OverallIterations: 28, TraceHistogramMax: 6, AutomataDifference: 9.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 207.7s, HoareTripleCheckerStatistics: 1178 SDtfs, 969 SDslu, 1490 SDs, 0 SdLazy, 1370 SolverSat, 105 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62439occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 25.7s AutomataMinimizationTime, 23 MinimizatonAttempts, 58646 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 321 NumberOfCodeBlocks, 321 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 236 ConstructedInterpolants, 0 QuantifiedInterpolants, 13155 SizeOfPredicates, 1 NumberOfNonLiveVariables, 150 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 25 InterpolantComputations, 21 PerfectInterpolantSequences, 83/89 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 could not prove your program: Timeout Completed graceful shutdown