/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 07:25:51,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 07:25:51,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 07:25:51,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 07:25:51,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 07:25:51,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 07:25:51,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 07:25:51,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 07:25:51,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 07:25:51,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 07:25:51,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 07:25:51,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 07:25:51,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 07:25:51,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 07:25:51,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 07:25:51,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 07:25:51,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 07:25:51,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 07:25:51,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 07:25:51,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 07:25:51,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 07:25:51,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 07:25:51,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 07:25:51,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 07:25:51,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 07:25:51,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 07:25:51,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 07:25:51,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 07:25:51,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 07:25:51,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 07:25:51,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 07:25:51,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 07:25:51,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 07:25:51,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 07:25:51,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 07:25:51,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 07:25:51,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 07:25:51,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 07:25:51,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 07:25:51,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 07:25:51,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 07:25:51,181 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2020-04-18 07:25:51,196 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 07:25:51,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 07:25:51,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 07:25:51,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 07:25:51,198 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 07:25:51,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 07:25:51,198 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 07:25:51,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 07:25:51,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 07:25:51,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 07:25:51,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 07:25:51,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 07:25:51,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 07:25:51,200 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 07:25:51,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 07:25:51,200 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 07:25:51,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 07:25:51,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 07:25:51,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 07:25:51,201 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 07:25:51,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 07:25:51,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 07:25:51,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 07:25:51,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 07:25:51,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 07:25:51,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 07:25:51,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 07:25:51,205 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 07:25:51,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 07:25:51,205 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 07:25:51,486 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 07:25:51,498 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 07:25:51,502 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 07:25:51,504 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 07:25:51,504 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 07:25:51,505 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-2.i [2020-04-18 07:25:51,576 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d25ac09f/3b4489e88d5b4fc395e9f305c0f63b55/FLAG7e74ce03e [2020-04-18 07:25:52,157 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 07:25:52,158 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-2.i [2020-04-18 07:25:52,177 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d25ac09f/3b4489e88d5b4fc395e9f305c0f63b55/FLAG7e74ce03e [2020-04-18 07:25:52,396 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d25ac09f/3b4489e88d5b4fc395e9f305c0f63b55 [2020-04-18 07:25:52,405 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 07:25:52,428 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 07:25:52,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 07:25:52,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 07:25:52,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 07:25:52,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:25:52" (1/1) ... [2020-04-18 07:25:52,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d94d5d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:52, skipping insertion in model container [2020-04-18 07:25:52,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:25:52" (1/1) ... [2020-04-18 07:25:52,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 07:25:52,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 07:25:53,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:25:53,060 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 07:25:53,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:25:53,220 INFO L208 MainTranslator]: Completed translation [2020-04-18 07:25:53,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:53 WrapperNode [2020-04-18 07:25:53,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 07:25:53,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 07:25:53,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 07:25:53,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 07:25:53,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:53" (1/1) ... [2020-04-18 07:25:53,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:53" (1/1) ... [2020-04-18 07:25:53,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 07:25:53,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 07:25:53,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 07:25:53,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 07:25:53,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:53" (1/1) ... [2020-04-18 07:25:53,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:53" (1/1) ... [2020-04-18 07:25:53,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:53" (1/1) ... [2020-04-18 07:25:53,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:53" (1/1) ... [2020-04-18 07:25:53,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:53" (1/1) ... [2020-04-18 07:25:53,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:53" (1/1) ... [2020-04-18 07:25:53,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:53" (1/1) ... [2020-04-18 07:25:53,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 07:25:53,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 07:25:53,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 07:25:53,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 07:25:53,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:53" (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 [2020-04-18 07:25:53,372 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-04-18 07:25:53,372 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-04-18 07:25:53,373 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-04-18 07:25:53,373 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-04-18 07:25:53,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 07:25:53,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 07:25:53,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 07:25:53,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 07:25:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 07:25:53,375 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 07:25:53,730 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 07:25:53,730 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-04-18 07:25:53,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:25:53 BoogieIcfgContainer [2020-04-18 07:25:53,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 07:25:53,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 07:25:53,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 07:25:53,739 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 07:25:53,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:25:52" (1/3) ... [2020-04-18 07:25:53,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45384d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:25:53, skipping insertion in model container [2020-04-18 07:25:53,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:53" (2/3) ... [2020-04-18 07:25:53,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45384d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:25:53, skipping insertion in model container [2020-04-18 07:25:53,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:25:53" (3/3) ... [2020-04-18 07:25:53,743 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-2.i [2020-04-18 07:25:53,754 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 07:25:53,755 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 07:25:53,762 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 07:25:53,763 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 07:25:53,794 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,794 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,794 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,795 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,795 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,796 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,796 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,797 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,799 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,799 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,799 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,800 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,800 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,800 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,801 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,801 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,801 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,805 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,806 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,806 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,806 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,806 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,812 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,813 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,813 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,814 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,814 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,814 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:53,841 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 07:25:53,858 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 07:25:53,858 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 07:25:53,859 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 07:25:53,859 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 07:25:53,859 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 07:25:53,859 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 07:25:53,859 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 07:25:53,859 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 07:25:53,874 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 58 transitions, 126 flow [2020-04-18 07:25:53,950 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1004 states. [2020-04-18 07:25:53,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states. [2020-04-18 07:25:53,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-04-18 07:25:53,969 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:25:53,970 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:25:53,971 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 07:25:53,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:25:53,979 INFO L82 PathProgramCache]: Analyzing trace with hash -2138170809, now seen corresponding path program 1 times [2020-04-18 07:25:53,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:25:53,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458238243] [2020-04-18 07:25:53,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:25:54,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:25:54,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:25:54,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458238243] [2020-04-18 07:25:54,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:25:54,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-18 07:25:54,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113715307] [2020-04-18 07:25:54,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 07:25:54,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:25:54,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 07:25:54,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-04-18 07:25:54,641 INFO L87 Difference]: Start difference. First operand 1004 states. Second operand 9 states. [2020-04-18 07:25:54,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:25:54,973 INFO L93 Difference]: Finished difference Result 1010 states and 2472 transitions. [2020-04-18 07:25:54,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:25:54,975 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-04-18 07:25:54,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:25:55,001 INFO L225 Difference]: With dead ends: 1010 [2020-04-18 07:25:55,001 INFO L226 Difference]: Without dead ends: 681 [2020-04-18 07:25:55,004 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-04-18 07:25:55,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2020-04-18 07:25:55,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 649. [2020-04-18 07:25:55,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2020-04-18 07:25:55,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 1563 transitions. [2020-04-18 07:25:55,115 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 1563 transitions. Word has length 28 [2020-04-18 07:25:55,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:25:55,115 INFO L479 AbstractCegarLoop]: Abstraction has 649 states and 1563 transitions. [2020-04-18 07:25:55,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 07:25:55,116 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 1563 transitions. [2020-04-18 07:25:55,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-04-18 07:25:55,119 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:25:55,119 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:25:55,119 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 07:25:55,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:25:55,120 INFO L82 PathProgramCache]: Analyzing trace with hash 797898845, now seen corresponding path program 1 times [2020-04-18 07:25:55,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:25:55,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212782418] [2020-04-18 07:25:55,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:25:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 07:25:55,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 07:25:55,205 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 07:25:55,205 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 07:25:55,207 WARN L363 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 07:25:55,207 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-04-18 07:25:55,217 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,218 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,218 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,218 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,218 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,219 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,219 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,219 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,219 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,220 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,220 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,220 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,220 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,220 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,221 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,221 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,221 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,221 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,222 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,222 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,222 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,222 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,223 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,223 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,223 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,224 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,224 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,224 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,224 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,224 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,225 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,225 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,225 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,225 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,226 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,226 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,226 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,226 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,227 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,228 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,229 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,229 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,229 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,229 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,231 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,231 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,231 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,232 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,232 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,232 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,234 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,235 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,235 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,235 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,235 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,235 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:55,238 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-18 07:25:55,238 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 07:25:55,239 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 07:25:55,239 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 07:25:55,239 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 07:25:55,239 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 07:25:55,239 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 07:25:55,239 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 07:25:55,239 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 07:25:55,243 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 80 places, 74 transitions, 172 flow [2020-04-18 07:25:55,543 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6134 states. [2020-04-18 07:25:55,544 INFO L276 IsEmpty]: Start isEmpty. Operand 6134 states. [2020-04-18 07:25:55,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-04-18 07:25:55,549 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:25:55,550 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:25:55,550 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:25:55,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:25:55,550 INFO L82 PathProgramCache]: Analyzing trace with hash -425611658, now seen corresponding path program 1 times [2020-04-18 07:25:55,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:25:55,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329493367] [2020-04-18 07:25:55,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:25:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:25:55,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:25:55,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329493367] [2020-04-18 07:25:55,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:25:55,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-18 07:25:55,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830994312] [2020-04-18 07:25:55,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 07:25:55,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:25:55,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 07:25:55,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-04-18 07:25:55,865 INFO L87 Difference]: Start difference. First operand 6134 states. Second operand 9 states. [2020-04-18 07:25:56,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:25:56,240 INFO L93 Difference]: Finished difference Result 7226 states and 23494 transitions. [2020-04-18 07:25:56,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:25:56,240 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-04-18 07:25:56,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:25:56,292 INFO L225 Difference]: With dead ends: 7226 [2020-04-18 07:25:56,293 INFO L226 Difference]: Without dead ends: 5137 [2020-04-18 07:25:56,294 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-04-18 07:25:56,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5137 states. [2020-04-18 07:25:56,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5137 to 4789. [2020-04-18 07:25:56,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4789 states. [2020-04-18 07:25:56,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4789 states to 4789 states and 15493 transitions. [2020-04-18 07:25:56,506 INFO L78 Accepts]: Start accepts. Automaton has 4789 states and 15493 transitions. Word has length 28 [2020-04-18 07:25:56,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:25:56,506 INFO L479 AbstractCegarLoop]: Abstraction has 4789 states and 15493 transitions. [2020-04-18 07:25:56,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 07:25:56,507 INFO L276 IsEmpty]: Start isEmpty. Operand 4789 states and 15493 transitions. [2020-04-18 07:25:56,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 07:25:56,509 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:25:56,509 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:25:56,510 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:25:56,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:25:56,510 INFO L82 PathProgramCache]: Analyzing trace with hash 69934743, now seen corresponding path program 1 times [2020-04-18 07:25:56,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:25:56,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702998334] [2020-04-18 07:25:56,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:25:56,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:25:56,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:25:56,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702998334] [2020-04-18 07:25:56,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:25:56,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-18 07:25:56,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026898136] [2020-04-18 07:25:56,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 07:25:56,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:25:56,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 07:25:56,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-04-18 07:25:56,696 INFO L87 Difference]: Start difference. First operand 4789 states and 15493 transitions. Second operand 9 states. [2020-04-18 07:25:57,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:25:57,409 INFO L93 Difference]: Finished difference Result 8437 states and 26452 transitions. [2020-04-18 07:25:57,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-04-18 07:25:57,410 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2020-04-18 07:25:57,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:25:57,525 INFO L225 Difference]: With dead ends: 8437 [2020-04-18 07:25:57,526 INFO L226 Difference]: Without dead ends: 7845 [2020-04-18 07:25:57,527 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=300, Invalid=890, Unknown=0, NotChecked=0, Total=1190 [2020-04-18 07:25:57,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7845 states. [2020-04-18 07:25:57,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7845 to 4031. [2020-04-18 07:25:57,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4031 states. [2020-04-18 07:25:57,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4031 states to 4031 states and 13066 transitions. [2020-04-18 07:25:57,696 INFO L78 Accepts]: Start accepts. Automaton has 4031 states and 13066 transitions. Word has length 37 [2020-04-18 07:25:57,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:25:57,696 INFO L479 AbstractCegarLoop]: Abstraction has 4031 states and 13066 transitions. [2020-04-18 07:25:57,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 07:25:57,697 INFO L276 IsEmpty]: Start isEmpty. Operand 4031 states and 13066 transitions. [2020-04-18 07:25:57,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 07:25:57,700 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:25:57,701 INFO L425 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:25:57,701 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:25:57,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:25:57,701 INFO L82 PathProgramCache]: Analyzing trace with hash 630082039, now seen corresponding path program 1 times [2020-04-18 07:25:57,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:25:57,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837342795] [2020-04-18 07:25:57,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:25:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 07:25:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 07:25:57,747 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 07:25:57,748 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 07:25:57,748 WARN L363 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 07:25:57,749 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-04-18 07:25:57,760 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,761 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,761 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,761 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,761 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,761 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,762 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,762 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,762 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,762 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,762 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,763 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,763 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,763 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,763 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,763 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,763 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,764 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,764 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,764 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,764 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,764 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,765 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,765 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,765 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,765 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,765 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,765 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,766 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,766 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,766 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,766 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,766 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,767 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,767 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,767 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,767 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,767 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,767 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,768 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,768 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,768 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,768 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,768 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,769 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,769 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,769 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,769 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,769 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,769 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,770 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,770 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,770 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,771 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,771 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,771 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,773 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,774 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,774 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,774 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,774 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,777 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,777 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,777 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,777 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,777 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,784 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,785 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,785 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,785 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,785 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,785 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,787 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,787 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,787 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,787 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,788 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,788 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,795 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,795 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,795 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,795 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,795 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,796 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:57,800 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-04-18 07:25:57,801 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 07:25:57,801 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 07:25:57,801 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 07:25:57,801 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 07:25:57,801 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 07:25:57,802 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 07:25:57,802 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 07:25:57,802 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 07:25:57,805 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 90 transitions, 222 flow [2020-04-18 07:26:02,731 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 36914 states. [2020-04-18 07:26:02,731 INFO L276 IsEmpty]: Start isEmpty. Operand 36914 states. [2020-04-18 07:26:02,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-04-18 07:26:02,732 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:26:02,732 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:26:02,732 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:26:02,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:26:02,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1799452155, now seen corresponding path program 1 times [2020-04-18 07:26:02,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:26:02,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509950369] [2020-04-18 07:26:02,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:26:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:26:02,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:26:02,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509950369] [2020-04-18 07:26:02,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:26:02,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-18 07:26:02,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088822052] [2020-04-18 07:26:02,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 07:26:02,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:26:02,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 07:26:02,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-04-18 07:26:02,921 INFO L87 Difference]: Start difference. First operand 36914 states. Second operand 9 states. [2020-04-18 07:26:03,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:26:03,594 INFO L93 Difference]: Finished difference Result 48050 states and 195966 transitions. [2020-04-18 07:26:03,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:26:03,596 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-04-18 07:26:03,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:26:03,813 INFO L225 Difference]: With dead ends: 48050 [2020-04-18 07:26:03,813 INFO L226 Difference]: Without dead ends: 34889 [2020-04-18 07:26:03,814 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-04-18 07:26:04,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34889 states. [2020-04-18 07:26:06,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34889 to 32149. [2020-04-18 07:26:06,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32149 states. [2020-04-18 07:26:06,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32149 states to 32149 states and 131033 transitions. [2020-04-18 07:26:06,352 INFO L78 Accepts]: Start accepts. Automaton has 32149 states and 131033 transitions. Word has length 28 [2020-04-18 07:26:06,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:26:06,352 INFO L479 AbstractCegarLoop]: Abstraction has 32149 states and 131033 transitions. [2020-04-18 07:26:06,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 07:26:06,353 INFO L276 IsEmpty]: Start isEmpty. Operand 32149 states and 131033 transitions. [2020-04-18 07:26:06,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 07:26:06,354 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:26:06,354 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:26:06,355 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:26:06,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:26:06,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1986486542, now seen corresponding path program 1 times [2020-04-18 07:26:06,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:26:06,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419339969] [2020-04-18 07:26:06,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:26:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:26:06,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:26:06,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419339969] [2020-04-18 07:26:06,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:26:06,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-18 07:26:06,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366251639] [2020-04-18 07:26:06,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 07:26:06,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:26:06,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 07:26:06,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-04-18 07:26:06,777 INFO L87 Difference]: Start difference. First operand 32149 states and 131033 transitions. Second operand 9 states. [2020-04-18 07:26:07,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:26:07,789 INFO L93 Difference]: Finished difference Result 66095 states and 259527 transitions. [2020-04-18 07:26:07,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-04-18 07:26:07,790 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2020-04-18 07:26:07,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:26:10,026 INFO L225 Difference]: With dead ends: 66095 [2020-04-18 07:26:10,026 INFO L226 Difference]: Without dead ends: 62687 [2020-04-18 07:26:10,028 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=300, Invalid=890, Unknown=0, NotChecked=0, Total=1190 [2020-04-18 07:26:10,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62687 states. [2020-04-18 07:26:11,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62687 to 30651. [2020-04-18 07:26:11,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30651 states. [2020-04-18 07:26:11,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30651 states to 30651 states and 124240 transitions. [2020-04-18 07:26:11,325 INFO L78 Accepts]: Start accepts. Automaton has 30651 states and 124240 transitions. Word has length 37 [2020-04-18 07:26:11,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:26:11,326 INFO L479 AbstractCegarLoop]: Abstraction has 30651 states and 124240 transitions. [2020-04-18 07:26:11,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 07:26:11,326 INFO L276 IsEmpty]: Start isEmpty. Operand 30651 states and 124240 transitions. [2020-04-18 07:26:11,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-04-18 07:26:11,331 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:26:11,331 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:26:11,331 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:26:11,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:26:11,332 INFO L82 PathProgramCache]: Analyzing trace with hash 703782471, now seen corresponding path program 1 times [2020-04-18 07:26:11,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:26:11,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880876450] [2020-04-18 07:26:11,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:26:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:26:11,484 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:26:11,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880876450] [2020-04-18 07:26:11,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704191082] [2020-04-18 07:26:11,485 INFO L94 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 [2020-04-18 07:26:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:26:11,574 INFO L264 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 14 conjunts are in the unsatisfiable core [2020-04-18 07:26:11,580 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 07:26:11,684 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 07:26:11,757 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 07:26:11,798 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-04-18 07:26:11,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:26:11,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2020-04-18 07:26:11,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330988620] [2020-04-18 07:26:11,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-04-18 07:26:11,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:26:11,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-18 07:26:11,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2020-04-18 07:26:11,801 INFO L87 Difference]: Start difference. First operand 30651 states and 124240 transitions. Second operand 10 states. [2020-04-18 07:26:13,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:26:13,123 INFO L93 Difference]: Finished difference Result 55921 states and 216369 transitions. [2020-04-18 07:26:13,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 07:26:13,124 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 44 [2020-04-18 07:26:13,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:26:13,457 INFO L225 Difference]: With dead ends: 55921 [2020-04-18 07:26:13,458 INFO L226 Difference]: Without dead ends: 52449 [2020-04-18 07:26:13,458 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=198, Invalid=794, Unknown=0, NotChecked=0, Total=992 [2020-04-18 07:26:13,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52449 states. [2020-04-18 07:26:16,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52449 to 28815. [2020-04-18 07:26:16,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28815 states. [2020-04-18 07:26:16,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28815 states to 28815 states and 115898 transitions. [2020-04-18 07:26:16,624 INFO L78 Accepts]: Start accepts. Automaton has 28815 states and 115898 transitions. Word has length 44 [2020-04-18 07:26:16,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:26:16,626 INFO L479 AbstractCegarLoop]: Abstraction has 28815 states and 115898 transitions. [2020-04-18 07:26:16,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-04-18 07:26:16,626 INFO L276 IsEmpty]: Start isEmpty. Operand 28815 states and 115898 transitions. [2020-04-18 07:26:16,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 07:26:16,634 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:26:16,634 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:26:16,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:26:16,838 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:26:16,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:26:16,839 INFO L82 PathProgramCache]: Analyzing trace with hash -2103996855, now seen corresponding path program 1 times [2020-04-18 07:26:16,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:26:16,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662983595] [2020-04-18 07:26:16,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:26:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:26:17,001 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:26:17,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662983595] [2020-04-18 07:26:17,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596124574] [2020-04-18 07:26:17,003 INFO L94 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 [2020-04-18 07:26:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:26:17,075 INFO L264 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 16 conjunts are in the unsatisfiable core [2020-04-18 07:26:17,087 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 07:26:17,191 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 07:26:17,311 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 07:26:17,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:26:17,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 07:26:17,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 23 [2020-04-18 07:26:17,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914879894] [2020-04-18 07:26:17,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-04-18 07:26:17,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:26:17,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-04-18 07:26:17,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2020-04-18 07:26:17,360 INFO L87 Difference]: Start difference. First operand 28815 states and 115898 transitions. Second operand 23 states. [2020-04-18 07:26:18,859 WARN L192 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 18 [2020-04-18 07:26:23,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:26:23,357 INFO L93 Difference]: Finished difference Result 66969 states and 252605 transitions. [2020-04-18 07:26:23,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2020-04-18 07:26:23,357 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 48 [2020-04-18 07:26:23,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:26:23,522 INFO L225 Difference]: With dead ends: 66969 [2020-04-18 07:26:23,523 INFO L226 Difference]: Without dead ends: 64233 [2020-04-18 07:26:23,526 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4585 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=2242, Invalid=11330, Unknown=0, NotChecked=0, Total=13572 [2020-04-18 07:26:23,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64233 states. [2020-04-18 07:26:24,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64233 to 28163. [2020-04-18 07:26:24,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28163 states. [2020-04-18 07:26:25,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28163 states to 28163 states and 113376 transitions. [2020-04-18 07:26:25,019 INFO L78 Accepts]: Start accepts. Automaton has 28163 states and 113376 transitions. Word has length 48 [2020-04-18 07:26:25,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:26:25,020 INFO L479 AbstractCegarLoop]: Abstraction has 28163 states and 113376 transitions. [2020-04-18 07:26:25,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-04-18 07:26:25,020 INFO L276 IsEmpty]: Start isEmpty. Operand 28163 states and 113376 transitions. [2020-04-18 07:26:25,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 07:26:25,027 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:26:25,027 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:26:25,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:26:25,228 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:26:25,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:26:25,229 INFO L82 PathProgramCache]: Analyzing trace with hash -272597337, now seen corresponding path program 2 times [2020-04-18 07:26:25,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:26:25,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076546353] [2020-04-18 07:26:25,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:26:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:26:25,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:26:25,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076546353] [2020-04-18 07:26:25,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752269176] [2020-04-18 07:26:25,395 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:26:25,465 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-04-18 07:26:25,465 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 07:26:25,466 INFO L264 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 16 conjunts are in the unsatisfiable core [2020-04-18 07:26:25,469 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 07:26:25,539 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 07:26:25,641 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 07:26:25,677 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-04-18 07:26:25,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:26:25,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [13] total 23 [2020-04-18 07:26:25,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137109991] [2020-04-18 07:26:25,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-04-18 07:26:25,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:26:25,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-18 07:26:25,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2020-04-18 07:26:25,679 INFO L87 Difference]: Start difference. First operand 28163 states and 113376 transitions. Second operand 12 states. [2020-04-18 07:26:28,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:26:28,051 INFO L93 Difference]: Finished difference Result 59089 states and 224857 transitions. [2020-04-18 07:26:28,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-04-18 07:26:28,051 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 48 [2020-04-18 07:26:28,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:26:28,252 INFO L225 Difference]: With dead ends: 59089 [2020-04-18 07:26:28,252 INFO L226 Difference]: Without dead ends: 57457 [2020-04-18 07:26:28,253 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 855 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=603, Invalid=2477, Unknown=0, NotChecked=0, Total=3080 [2020-04-18 07:26:28,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57457 states. [2020-04-18 07:26:29,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57457 to 25155. [2020-04-18 07:26:29,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25155 states. [2020-04-18 07:26:29,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25155 states to 25155 states and 102290 transitions. [2020-04-18 07:26:29,618 INFO L78 Accepts]: Start accepts. Automaton has 25155 states and 102290 transitions. Word has length 48 [2020-04-18 07:26:29,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:26:29,618 INFO L479 AbstractCegarLoop]: Abstraction has 25155 states and 102290 transitions. [2020-04-18 07:26:29,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-04-18 07:26:29,618 INFO L276 IsEmpty]: Start isEmpty. Operand 25155 states and 102290 transitions. [2020-04-18 07:26:29,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 07:26:29,626 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:26:29,626 INFO L425 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:26:29,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:26:29,831 INFO L427 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:26:29,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:26:29,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1733752762, now seen corresponding path program 1 times [2020-04-18 07:26:29,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:26:29,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309903754] [2020-04-18 07:26:29,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:26:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 07:26:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 07:26:29,891 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 07:26:29,891 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 07:26:29,891 WARN L363 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 07:26:29,892 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-04-18 07:26:29,907 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,908 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,908 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,908 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,908 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,908 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,908 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,909 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,909 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,909 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,909 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,909 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,909 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,909 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,910 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,910 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,910 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,910 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,910 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,910 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,910 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,911 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,911 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,911 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,911 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,911 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,911 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,911 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,912 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,912 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,912 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,912 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,912 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,912 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,913 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,913 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,913 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,913 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,913 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,913 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,913 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,914 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,914 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,914 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,914 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,914 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,914 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,914 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,915 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,915 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,915 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,915 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,915 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,915 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,916 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,916 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,916 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,916 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,916 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,916 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,917 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,917 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,917 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,917 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,917 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,917 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,917 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,918 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,918 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,918 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,919 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,919 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,919 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,921 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,921 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,921 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,921 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,921 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,922 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,923 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,923 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,923 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,923 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,924 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,924 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,925 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,925 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,925 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,927 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,927 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,927 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,927 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,928 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,928 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,929 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,929 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,929 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,929 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,930 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,930 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,931 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,932 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,932 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,933 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,933 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,933 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,934 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,935 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,935 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,935 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,935 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,935 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:29,938 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-04-18 07:26:29,938 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 07:26:29,938 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 07:26:29,938 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 07:26:29,939 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 07:26:29,939 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 07:26:29,939 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 07:26:29,939 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 07:26:29,939 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 07:26:29,944 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 118 places, 106 transitions, 276 flow [2020-04-18 07:28:12,817 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 221594 states. [2020-04-18 07:28:12,817 INFO L276 IsEmpty]: Start isEmpty. Operand 221594 states. [2020-04-18 07:28:12,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-04-18 07:28:12,818 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:28:12,818 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:28:12,818 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 07:28:12,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:28:12,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1964725004, now seen corresponding path program 1 times [2020-04-18 07:28:12,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:28:12,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910163002] [2020-04-18 07:28:12,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:28:12,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:28:12,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:28:12,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910163002] [2020-04-18 07:28:12,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:28:12,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-18 07:28:12,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367068407] [2020-04-18 07:28:12,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 07:28:12,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:28:12,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 07:28:12,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-04-18 07:28:12,988 INFO L87 Difference]: Start difference. First operand 221594 states. Second operand 9 states. [2020-04-18 07:28:15,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:28:15,992 INFO L93 Difference]: Finished difference Result 307106 states and 1510070 transitions. [2020-04-18 07:28:15,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:28:15,992 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-04-18 07:28:15,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:28:16,903 INFO L225 Difference]: With dead ends: 307106 [2020-04-18 07:28:16,903 INFO L226 Difference]: Without dead ends: 225465 [2020-04-18 07:28:16,903 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-04-18 07:28:28,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225465 states. [2020-04-18 07:28:33,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225465 to 206389. [2020-04-18 07:28:33,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206389 states. [2020-04-18 07:28:43,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206389 states to 206389 states and 1016193 transitions. [2020-04-18 07:28:43,381 INFO L78 Accepts]: Start accepts. Automaton has 206389 states and 1016193 transitions. Word has length 28 [2020-04-18 07:28:43,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:28:43,382 INFO L479 AbstractCegarLoop]: Abstraction has 206389 states and 1016193 transitions. [2020-04-18 07:28:43,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 07:28:43,382 INFO L276 IsEmpty]: Start isEmpty. Operand 206389 states and 1016193 transitions. [2020-04-18 07:28:43,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 07:28:43,384 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:28:43,384 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:28:43,384 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 07:28:43,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:28:43,384 INFO L82 PathProgramCache]: Analyzing trace with hash -2143812311, now seen corresponding path program 1 times [2020-04-18 07:28:43,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:28:43,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716703249] [2020-04-18 07:28:43,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:28:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:28:43,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:28:43,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716703249] [2020-04-18 07:28:43,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:28:43,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-18 07:28:43,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173259503] [2020-04-18 07:28:43,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 07:28:43,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:28:43,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 07:28:43,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-04-18 07:28:43,501 INFO L87 Difference]: Start difference. First operand 206389 states and 1016193 transitions. Second operand 9 states. [2020-04-18 07:28:55,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:28:55,238 INFO L93 Difference]: Finished difference Result 460227 states and 2188511 transitions. [2020-04-18 07:28:55,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-04-18 07:28:55,238 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2020-04-18 07:28:55,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:28:57,956 INFO L225 Difference]: With dead ends: 460227 [2020-04-18 07:28:57,956 INFO L226 Difference]: Without dead ends: 438899 [2020-04-18 07:28:57,957 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=890, Unknown=0, NotChecked=0, Total=1190 [2020-04-18 07:29:12,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438899 states. Received shutdown request... [2020-04-18 07:29:23,716 WARN L544 AbstractCegarLoop]: Verification canceled [2020-04-18 07:29:23,720 WARN L228 ceAbstractionStarter]: Timeout [2020-04-18 07:29:23,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:29:23 BasicIcfg [2020-04-18 07:29:23,720 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 07:29:23,722 INFO L168 Benchmark]: Toolchain (without parser) took 211315.48 ms. Allocated memory was 139.5 MB in the beginning and 5.5 GB in the end (delta: 5.4 GB). Free memory was 100.2 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 4.7 GB. Max. memory is 7.1 GB. [2020-04-18 07:29:23,723 INFO L168 Benchmark]: CDTParser took 1.26 ms. Allocated memory is still 139.5 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 07:29:23,724 INFO L168 Benchmark]: CACSL2BoogieTranslator took 792.09 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 98.3 MB in the beginning and 163.1 MB in the end (delta: -64.8 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-04-18 07:29:23,724 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.75 ms. Allocated memory is still 203.4 MB. Free memory was 162.4 MB in the beginning and 160.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 07:29:23,725 INFO L168 Benchmark]: Boogie Preprocessor took 27.98 ms. Allocated memory is still 203.4 MB. Free memory was 160.4 MB in the beginning and 159.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 07:29:23,726 INFO L168 Benchmark]: RCFGBuilder took 423.62 ms. Allocated memory is still 203.4 MB. Free memory was 159.0 MB in the beginning and 138.8 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-04-18 07:29:23,727 INFO L168 Benchmark]: TraceAbstraction took 209984.50 ms. Allocated memory was 203.4 MB in the beginning and 5.5 GB in the end (delta: 5.3 GB). Free memory was 138.8 MB in the beginning and 2.0 GB in the end (delta: -1.8 GB). Peak memory consumption was 4.7 GB. Max. memory is 7.1 GB. [2020-04-18 07:29:23,731 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.26 ms. Allocated memory is still 139.5 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 792.09 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 98.3 MB in the beginning and 163.1 MB in the end (delta: -64.8 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 60.75 ms. Allocated memory is still 203.4 MB. Free memory was 162.4 MB in the beginning and 160.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.98 ms. Allocated memory is still 203.4 MB. Free memory was 160.4 MB in the beginning and 159.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 423.62 ms. Allocated memory is still 203.4 MB. Free memory was 159.0 MB in the beginning and 138.8 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209984.50 ms. Allocated memory was 203.4 MB in the beginning and 5.5 GB in the end (delta: 5.3 GB). Free memory was 138.8 MB in the beginning and 2.0 GB in the end (delta: -1.8 GB). Peak memory consumption was 4.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 678]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 678). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 55 locations, 1 error locations. Started 4 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 209.7s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 34.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 108.2s, HoareTripleCheckerStatistics: 1804 SDtfs, 5878 SDslu, 8932 SDs, 0 SdLazy, 3496 SolverSat, 199 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 479 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 346 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6647 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221594occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 62.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 150052 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 626 NumberOfCodeBlocks, 617 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 490 ConstructedInterpolants, 0 QuantifiedInterpolants, 98612 SizeOfPredicates, 28 NumberOfNonLiveVariables, 320 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 13 InterpolantComputations, 9 PerfectInterpolantSequences, 6/18 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