/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 23:40:31,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 23:40:31,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 23:40:31,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 23:40:31,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 23:40:31,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 23:40:31,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 23:40:31,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 23:40:31,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 23:40:31,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 23:40:31,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 23:40:31,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 23:40:31,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 23:40:31,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 23:40:31,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 23:40:31,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 23:40:31,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 23:40:31,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 23:40:31,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 23:40:31,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 23:40:31,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 23:40:31,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 23:40:31,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 23:40:31,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 23:40:31,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 23:40:31,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 23:40:31,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 23:40:31,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 23:40:31,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 23:40:31,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 23:40:31,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 23:40:31,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 23:40:31,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 23:40:31,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 23:40:31,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 23:40:31,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 23:40:31,265 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-05 23:40:31,287 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 23:40:31,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 23:40:31,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 23:40:31,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 23:40:31,289 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 23:40:31,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 23:40:31,290 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 23:40:31,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 23:40:31,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 23:40:31,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 23:40:31,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 23:40:31,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 23:40:31,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 23:40:31,291 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 23:40:31,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 23:40:31,292 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 23:40:31,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 23:40:31,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 23:40:31,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 23:40:31,292 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 23:40:31,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 23:40:31,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 23:40:31,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 23:40:31,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-05 23:40:31,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 23:40:31,294 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 23:40:31,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 23:40:31,294 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-05 23:40:31,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 23:40:31,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 23:40:31,626 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 23:40:31,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 23:40:31,631 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 23:40:31,631 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 23:40:31,632 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i [2020-10-05 23:40:31,692 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f182e533/f224091be26d46b48c267e0b9153de52/FLAGf2465a8cb [2020-10-05 23:40:32,208 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 23:40:32,208 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i [2020-10-05 23:40:32,224 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f182e533/f224091be26d46b48c267e0b9153de52/FLAGf2465a8cb [2020-10-05 23:40:32,505 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f182e533/f224091be26d46b48c267e0b9153de52 [2020-10-05 23:40:32,515 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 23:40:32,516 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 23:40:32,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 23:40:32,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 23:40:32,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 23:40:32,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:40:32" (1/1) ... [2020-10-05 23:40:32,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6713cff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:40:32, skipping insertion in model container [2020-10-05 23:40:32,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:40:32" (1/1) ... [2020-10-05 23:40:32,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 23:40:32,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 23:40:33,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:40:33,116 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 23:40:33,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:40:33,251 INFO L208 MainTranslator]: Completed translation [2020-10-05 23:40:33,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:40:33 WrapperNode [2020-10-05 23:40:33,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 23:40:33,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 23:40:33,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 23:40:33,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 23:40:33,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:40:33" (1/1) ... [2020-10-05 23:40:33,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:40:33" (1/1) ... [2020-10-05 23:40:33,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 23:40:33,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 23:40:33,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 23:40:33,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 23:40:33,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:40:33" (1/1) ... [2020-10-05 23:40:33,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:40:33" (1/1) ... [2020-10-05 23:40:33,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:40:33" (1/1) ... [2020-10-05 23:40:33,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:40:33" (1/1) ... [2020-10-05 23:40:33,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:40:33" (1/1) ... [2020-10-05 23:40:33,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:40:33" (1/1) ... [2020-10-05 23:40:33,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:40:33" (1/1) ... [2020-10-05 23:40:33,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 23:40:33,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 23:40:33,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 23:40:33,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 23:40:33,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:40:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 23:40:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 23:40:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 23:40:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 23:40:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 23:40:33,424 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 23:40:33,424 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 23:40:33,424 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 23:40:33,424 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 23:40:33,424 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 23:40:33,424 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 23:40:33,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 23:40:33,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 23:40:33,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 23:40:33,427 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 23:40:33,805 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 23:40:33,805 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 23:40:33,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:40:33 BoogieIcfgContainer [2020-10-05 23:40:33,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 23:40:33,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 23:40:33,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 23:40:33,813 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 23:40:33,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 11:40:32" (1/3) ... [2020-10-05 23:40:33,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3c0214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:40:33, skipping insertion in model container [2020-10-05 23:40:33,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:40:33" (2/3) ... [2020-10-05 23:40:33,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3c0214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:40:33, skipping insertion in model container [2020-10-05 23:40:33,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:40:33" (3/3) ... [2020-10-05 23:40:33,817 INFO L109 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc.i [2020-10-05 23:40:33,828 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 23:40:33,829 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-05 23:40:33,837 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 23:40:33,838 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 23:40:33,868 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,868 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,868 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,869 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,869 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,870 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,871 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,871 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,871 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,872 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,872 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,872 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,873 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,873 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,873 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,874 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,877 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,878 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,878 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,878 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,884 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,885 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,885 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,885 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,889 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,889 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,889 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,890 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:40:33,906 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-05 23:40:33,929 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 23:40:33,929 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 23:40:33,929 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-05 23:40:33,930 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 23:40:33,930 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 23:40:33,930 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 23:40:33,930 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 23:40:33,930 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 23:40:33,947 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-05 23:40:33,949 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-05 23:40:33,994 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-05 23:40:33,994 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:40:33,999 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-05 23:40:34,002 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-05 23:40:34,023 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-05 23:40:34,023 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:40:34,024 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-05 23:40:34,026 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-10-05 23:40:34,027 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-05 23:40:35,275 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2244 [2020-10-05 23:40:35,276 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2020-10-05 23:40:35,280 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-05 23:40:35,321 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 274 states. [2020-10-05 23:40:35,323 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2020-10-05 23:40:35,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 23:40:35,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:40:35,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:40:35,335 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:40:35,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:40:35,342 INFO L82 PathProgramCache]: Analyzing trace with hash 278619754, now seen corresponding path program 1 times [2020-10-05 23:40:35,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:40:35,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76086748] [2020-10-05 23:40:35,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:40:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:40:35,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:40:35,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76086748] [2020-10-05 23:40:35,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:40:35,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:40:35,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867909799] [2020-10-05 23:40:35,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-05 23:40:35,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:40:35,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-05 23:40:35,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 23:40:35,541 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 2 states. [2020-10-05 23:40:35,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:40:35,571 INFO L93 Difference]: Finished difference Result 274 states and 786 transitions. [2020-10-05 23:40:35,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-05 23:40:35,572 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-05 23:40:35,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:40:35,589 INFO L225 Difference]: With dead ends: 274 [2020-10-05 23:40:35,589 INFO L226 Difference]: Without dead ends: 226 [2020-10-05 23:40:35,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 23:40:35,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-05 23:40:35,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-05 23:40:35,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-05 23:40:35,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions. [2020-10-05 23:40:35,668 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8 [2020-10-05 23:40:35,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:40:35,669 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions. [2020-10-05 23:40:35,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-05 23:40:35,670 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2020-10-05 23:40:35,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 23:40:35,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:40:35,671 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:40:35,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 23:40:35,672 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:40:35,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:40:35,673 INFO L82 PathProgramCache]: Analyzing trace with hash 47263938, now seen corresponding path program 1 times [2020-10-05 23:40:35,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:40:35,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12589245] [2020-10-05 23:40:35,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:40:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:40:35,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:40:35,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12589245] [2020-10-05 23:40:35,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:40:35,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:40:35,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132062932] [2020-10-05 23:40:35,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:40:35,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:40:35,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:40:35,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:40:35,835 INFO L87 Difference]: Start difference. First operand 226 states and 634 transitions. Second operand 4 states. [2020-10-05 23:40:35,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:40:35,875 INFO L93 Difference]: Finished difference Result 262 states and 700 transitions. [2020-10-05 23:40:35,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:40:35,876 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 23:40:35,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:40:35,879 INFO L225 Difference]: With dead ends: 262 [2020-10-05 23:40:35,879 INFO L226 Difference]: Without dead ends: 214 [2020-10-05 23:40:35,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:40:35,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-05 23:40:35,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-10-05 23:40:35,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-10-05 23:40:35,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 590 transitions. [2020-10-05 23:40:35,900 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 590 transitions. Word has length 9 [2020-10-05 23:40:35,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:40:35,901 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 590 transitions. [2020-10-05 23:40:35,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:40:35,901 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 590 transitions. [2020-10-05 23:40:35,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 23:40:35,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:40:35,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:40:35,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 23:40:35,903 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:40:35,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:40:35,904 INFO L82 PathProgramCache]: Analyzing trace with hash 984763373, now seen corresponding path program 1 times [2020-10-05 23:40:35,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:40:35,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048885682] [2020-10-05 23:40:35,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:40:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:40:35,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:40:35,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048885682] [2020-10-05 23:40:35,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:40:35,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:40:35,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438093607] [2020-10-05 23:40:35,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 23:40:35,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:40:35,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 23:40:35,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:40:35,983 INFO L87 Difference]: Start difference. First operand 214 states and 590 transitions. Second operand 5 states. [2020-10-05 23:40:36,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:40:36,039 INFO L93 Difference]: Finished difference Result 232 states and 614 transitions. [2020-10-05 23:40:36,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 23:40:36,040 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-05 23:40:36,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:40:36,042 INFO L225 Difference]: With dead ends: 232 [2020-10-05 23:40:36,042 INFO L226 Difference]: Without dead ends: 196 [2020-10-05 23:40:36,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-05 23:40:36,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-10-05 23:40:36,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2020-10-05 23:40:36,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-10-05 23:40:36,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 530 transitions. [2020-10-05 23:40:36,058 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 530 transitions. Word has length 10 [2020-10-05 23:40:36,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:40:36,058 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 530 transitions. [2020-10-05 23:40:36,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 23:40:36,058 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 530 transitions. [2020-10-05 23:40:36,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 23:40:36,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:40:36,060 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:40:36,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 23:40:36,060 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:40:36,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:40:36,061 INFO L82 PathProgramCache]: Analyzing trace with hash 462854661, now seen corresponding path program 1 times [2020-10-05 23:40:36,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:40:36,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116831631] [2020-10-05 23:40:36,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:40:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:40:36,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:40:36,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116831631] [2020-10-05 23:40:36,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:40:36,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 23:40:36,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769483868] [2020-10-05 23:40:36,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 23:40:36,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:40:36,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 23:40:36,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-05 23:40:36,158 INFO L87 Difference]: Start difference. First operand 196 states and 530 transitions. Second operand 6 states. [2020-10-05 23:40:36,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:40:36,263 INFO L93 Difference]: Finished difference Result 255 states and 672 transitions. [2020-10-05 23:40:36,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-05 23:40:36,264 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-10-05 23:40:36,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:40:36,265 INFO L225 Difference]: With dead ends: 255 [2020-10-05 23:40:36,265 INFO L226 Difference]: Without dead ends: 150 [2020-10-05 23:40:36,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-05 23:40:36,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-05 23:40:36,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-10-05 23:40:36,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-05 23:40:36,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 378 transitions. [2020-10-05 23:40:36,276 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 378 transitions. Word has length 11 [2020-10-05 23:40:36,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:40:36,276 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 378 transitions. [2020-10-05 23:40:36,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 23:40:36,276 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 378 transitions. [2020-10-05 23:40:36,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 23:40:36,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:40:36,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:40:36,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 23:40:36,278 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:40:36,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:40:36,279 INFO L82 PathProgramCache]: Analyzing trace with hash 266026162, now seen corresponding path program 1 times [2020-10-05 23:40:36,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:40:36,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994185707] [2020-10-05 23:40:36,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:40:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:40:36,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:40:36,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994185707] [2020-10-05 23:40:36,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:40:36,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:40:36,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736382880] [2020-10-05 23:40:36,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:40:36,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:40:36,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:40:36,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:40:36,379 INFO L87 Difference]: Start difference. First operand 150 states and 378 transitions. Second operand 4 states. [2020-10-05 23:40:36,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:40:36,431 INFO L93 Difference]: Finished difference Result 164 states and 376 transitions. [2020-10-05 23:40:36,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:40:36,432 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 23:40:36,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:40:36,436 INFO L225 Difference]: With dead ends: 164 [2020-10-05 23:40:36,436 INFO L226 Difference]: Without dead ends: 128 [2020-10-05 23:40:36,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:40:36,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-05 23:40:36,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-10-05 23:40:36,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-05 23:40:36,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 293 transitions. [2020-10-05 23:40:36,454 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 293 transitions. Word has length 12 [2020-10-05 23:40:36,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:40:36,454 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 293 transitions. [2020-10-05 23:40:36,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:40:36,454 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 293 transitions. [2020-10-05 23:40:36,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 23:40:36,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:40:36,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:40:36,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 23:40:36,459 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:40:36,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:40:36,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1292455845, now seen corresponding path program 1 times [2020-10-05 23:40:36,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:40:36,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224107273] [2020-10-05 23:40:36,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:40:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:40:36,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:40:36,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224107273] [2020-10-05 23:40:36,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:40:36,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 23:40:36,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754013681] [2020-10-05 23:40:36,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 23:40:36,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:40:36,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 23:40:36,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:40:36,551 INFO L87 Difference]: Start difference. First operand 128 states and 293 transitions. Second operand 5 states. [2020-10-05 23:40:36,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:40:36,590 INFO L93 Difference]: Finished difference Result 116 states and 240 transitions. [2020-10-05 23:40:36,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 23:40:36,591 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-05 23:40:36,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:40:36,592 INFO L225 Difference]: With dead ends: 116 [2020-10-05 23:40:36,592 INFO L226 Difference]: Without dead ends: 92 [2020-10-05 23:40:36,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 23:40:36,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-05 23:40:36,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-10-05 23:40:36,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-05 23:40:36,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 186 transitions. [2020-10-05 23:40:36,596 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 186 transitions. Word has length 13 [2020-10-05 23:40:36,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:40:36,597 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 186 transitions. [2020-10-05 23:40:36,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 23:40:36,597 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 186 transitions. [2020-10-05 23:40:36,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 23:40:36,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:40:36,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:40:36,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 23:40:36,599 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:40:36,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:40:36,599 INFO L82 PathProgramCache]: Analyzing trace with hash -228576461, now seen corresponding path program 1 times [2020-10-05 23:40:36,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:40:36,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845678717] [2020-10-05 23:40:36,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:40:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:40:36,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:40:36,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845678717] [2020-10-05 23:40:36,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:40:36,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:40:36,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466634432] [2020-10-05 23:40:36,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:40:36,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:40:36,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:40:36,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:40:36,651 INFO L87 Difference]: Start difference. First operand 92 states and 186 transitions. Second operand 4 states. [2020-10-05 23:40:36,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:40:36,676 INFO L93 Difference]: Finished difference Result 120 states and 228 transitions. [2020-10-05 23:40:36,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:40:36,676 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-05 23:40:36,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:40:36,677 INFO L225 Difference]: With dead ends: 120 [2020-10-05 23:40:36,678 INFO L226 Difference]: Without dead ends: 94 [2020-10-05 23:40:36,678 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:40:36,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-05 23:40:36,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2020-10-05 23:40:36,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-05 23:40:36,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 175 transitions. [2020-10-05 23:40:36,682 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 175 transitions. Word has length 14 [2020-10-05 23:40:36,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:40:36,682 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 175 transitions. [2020-10-05 23:40:36,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:40:36,682 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 175 transitions. [2020-10-05 23:40:36,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 23:40:36,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:40:36,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:40:36,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 23:40:36,684 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:40:36,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:40:36,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1357686433, now seen corresponding path program 1 times [2020-10-05 23:40:36,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:40:36,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249533091] [2020-10-05 23:40:36,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:40:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:40:36,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:40:36,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249533091] [2020-10-05 23:40:36,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:40:36,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 23:40:36,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436366418] [2020-10-05 23:40:36,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 23:40:36,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:40:36,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 23:40:36,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:40:36,748 INFO L87 Difference]: Start difference. First operand 90 states and 175 transitions. Second operand 5 states. [2020-10-05 23:40:36,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:40:36,781 INFO L93 Difference]: Finished difference Result 113 states and 209 transitions. [2020-10-05 23:40:36,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:40:36,781 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-05 23:40:36,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:40:36,782 INFO L225 Difference]: With dead ends: 113 [2020-10-05 23:40:36,782 INFO L226 Difference]: Without dead ends: 70 [2020-10-05 23:40:36,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-05 23:40:36,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-05 23:40:36,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2020-10-05 23:40:36,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-05 23:40:36,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 115 transitions. [2020-10-05 23:40:36,785 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 115 transitions. Word has length 15 [2020-10-05 23:40:36,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:40:36,786 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 115 transitions. [2020-10-05 23:40:36,786 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 23:40:36,786 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 115 transitions. [2020-10-05 23:40:36,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 23:40:36,787 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:40:36,787 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:40:36,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 23:40:36,787 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:40:36,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:40:36,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1504039886, now seen corresponding path program 1 times [2020-10-05 23:40:36,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:40:36,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354412784] [2020-10-05 23:40:36,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:40:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:40:36,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:40:36,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354412784] [2020-10-05 23:40:36,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:40:36,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-05 23:40:36,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039507077] [2020-10-05 23:40:36,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 23:40:36,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:40:36,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 23:40:36,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 23:40:36,846 INFO L87 Difference]: Start difference. First operand 68 states and 115 transitions. Second operand 6 states. [2020-10-05 23:40:36,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:40:36,878 INFO L93 Difference]: Finished difference Result 58 states and 100 transitions. [2020-10-05 23:40:36,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 23:40:36,878 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-05 23:40:36,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:40:36,879 INFO L225 Difference]: With dead ends: 58 [2020-10-05 23:40:36,879 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 23:40:36,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-05 23:40:36,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 23:40:36,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 23:40:36,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 23:40:36,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 23:40:36,880 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-05 23:40:36,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:40:36,880 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 23:40:36,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 23:40:36,881 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 23:40:36,881 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 23:40:36,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-05 23:40:36,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 11:40:36 BasicIcfg [2020-10-05 23:40:36,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 23:40:36,888 INFO L168 Benchmark]: Toolchain (without parser) took 4370.88 ms. Allocated memory was 138.9 MB in the beginning and 248.5 MB in the end (delta: 109.6 MB). Free memory was 101.0 MB in the beginning and 188.6 MB in the end (delta: -87.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-10-05 23:40:36,889 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-05 23:40:36,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.42 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 100.8 MB in the beginning and 156.2 MB in the end (delta: -55.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-10-05 23:40:36,890 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.31 ms. Allocated memory is still 201.3 MB. Free memory was 156.2 MB in the beginning and 154.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-10-05 23:40:36,891 INFO L168 Benchmark]: Boogie Preprocessor took 36.71 ms. Allocated memory is still 201.3 MB. Free memory was 154.0 MB in the beginning and 152.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-05 23:40:36,892 INFO L168 Benchmark]: RCFGBuilder took 446.14 ms. Allocated memory is still 201.3 MB. Free memory was 152.7 MB in the beginning and 130.6 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-10-05 23:40:36,893 INFO L168 Benchmark]: TraceAbstraction took 3075.66 ms. Allocated memory was 201.3 MB in the beginning and 248.5 MB in the end (delta: 47.2 MB). Free memory was 129.9 MB in the beginning and 188.6 MB in the end (delta: -58.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-05 23:40:36,897 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 735.42 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 100.8 MB in the beginning and 156.2 MB in the end (delta: -55.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 71.31 ms. Allocated memory is still 201.3 MB. Free memory was 156.2 MB in the beginning and 154.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 36.71 ms. Allocated memory is still 201.3 MB. Free memory was 154.0 MB in the beginning and 152.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 446.14 ms. Allocated memory is still 201.3 MB. Free memory was 152.7 MB in the beginning and 130.6 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3075.66 ms. Allocated memory was 201.3 MB in the beginning and 248.5 MB in the end (delta: 47.2 MB). Free memory was 129.9 MB in the beginning and 188.6 MB in the end (delta: -58.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 76 ProgramPointsBefore, 31 ProgramPointsAfterwards, 68 TransitionsBefore, 22 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 588 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2244 CheckedPairsTotal, 56 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 179 SDtfs, 204 SDslu, 302 SDs, 0 SdLazy, 161 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 3457 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...