/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/thin001_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 23:09:44,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 23:09:44,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 23:09:44,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 23:09:44,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 23:09:44,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 23:09:44,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 23:09:44,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 23:09:44,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 23:09:44,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 23:09:44,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 23:09:44,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 23:09:44,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 23:09:44,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 23:09:44,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 23:09:44,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 23:09:44,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 23:09:44,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 23:09:44,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 23:09:44,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 23:09:44,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 23:09:44,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 23:09:44,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 23:09:44,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 23:09:44,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 23:09:44,146 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 23:09:44,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 23:09:44,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 23:09:44,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 23:09:44,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 23:09:44,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 23:09:44,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 23:09:44,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 23:09:44,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 23:09:44,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 23:09:44,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 23:09:44,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 23:09:44,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 23:09:44,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 23:09:44,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 23:09:44,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 23:09:44,163 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 [2020-10-21 23:09:44,205 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 23:09:44,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 23:09:44,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 23:09:44,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 23:09:44,212 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 23:09:44,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 23:09:44,212 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 23:09:44,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 23:09:44,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 23:09:44,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 23:09:44,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 23:09:44,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 23:09:44,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 23:09:44,213 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 23:09:44,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 23:09:44,214 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 23:09:44,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 23:09:44,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 23:09:44,216 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 23:09:44,217 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 23:09:44,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 23:09:44,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:09:44,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 23:09:44,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 23:09:44,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 23:09:44,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 23:09:44,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 23:09:44,218 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 23:09:44,219 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 23:09:44,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 23:09:44,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 23:09:44,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 23:09:44,524 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 23:09:44,525 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 23:09:44,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.opt.i [2020-10-21 23:09:44,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f97f4cc2/dca947cbaca4459880f9b5ae463d4da0/FLAG608b9fbc6 [2020-10-21 23:09:45,115 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 23:09:45,116 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_tso.opt.i [2020-10-21 23:09:45,140 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f97f4cc2/dca947cbaca4459880f9b5ae463d4da0/FLAG608b9fbc6 [2020-10-21 23:09:45,395 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f97f4cc2/dca947cbaca4459880f9b5ae463d4da0 [2020-10-21 23:09:45,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 23:09:45,411 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 23:09:45,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 23:09:45,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 23:09:45,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 23:09:45,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:09:45" (1/1) ... [2020-10-21 23:09:45,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f7a4c86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:45, skipping insertion in model container [2020-10-21 23:09:45,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:09:45" (1/1) ... [2020-10-21 23:09:45,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 23:09:45,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 23:09:45,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:09:45,989 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 23:09:46,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:09:46,112 INFO L208 MainTranslator]: Completed translation [2020-10-21 23:09:46,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:46 WrapperNode [2020-10-21 23:09:46,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 23:09:46,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 23:09:46,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 23:09:46,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 23:09:46,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:46" (1/1) ... [2020-10-21 23:09:46,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:46" (1/1) ... [2020-10-21 23:09:46,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 23:09:46,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 23:09:46,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 23:09:46,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 23:09:46,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:46" (1/1) ... [2020-10-21 23:09:46,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:46" (1/1) ... [2020-10-21 23:09:46,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:46" (1/1) ... [2020-10-21 23:09:46,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:46" (1/1) ... [2020-10-21 23:09:46,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:46" (1/1) ... [2020-10-21 23:09:46,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:46" (1/1) ... [2020-10-21 23:09:46,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:46" (1/1) ... [2020-10-21 23:09:46,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 23:09:46,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 23:09:46,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 23:09:46,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 23:09:46,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:09:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 23:09:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 23:09:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 23:09:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 23:09:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 23:09:46,264 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 23:09:46,265 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 23:09:46,265 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 23:09:46,266 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 23:09:46,266 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 23:09:46,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 23:09:46,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 23:09:46,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 23:09:46,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 23:09:46,271 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 23:09:46,688 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 23:09:46,689 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 23:09:46,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:09:46 BoogieIcfgContainer [2020-10-21 23:09:46,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 23:09:46,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 23:09:46,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 23:09:46,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 23:09:46,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 11:09:45" (1/3) ... [2020-10-21 23:09:46,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e711133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:09:46, skipping insertion in model container [2020-10-21 23:09:46,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:46" (2/3) ... [2020-10-21 23:09:46,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e711133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:09:46, skipping insertion in model container [2020-10-21 23:09:46,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:09:46" (3/3) ... [2020-10-21 23:09:46,702 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_tso.opt.i [2020-10-21 23:09:46,713 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 23:09:46,714 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 23:09:46,722 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 23:09:46,723 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 23:09:46,756 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,756 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,756 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,757 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,760 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,760 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,761 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,761 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,761 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,762 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,762 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,762 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,763 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,763 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,764 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,764 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,764 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,765 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,774 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,775 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,775 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,784 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,785 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,789 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,789 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,789 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,790 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:09:46,796 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 23:09:46,811 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 23:09:46,836 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:09:46,836 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:09:46,836 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:09:46,837 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 23:09:46,838 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:09:46,839 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:09:46,839 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:09:46,839 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:09:46,862 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:09:46,863 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-10-21 23:09:46,866 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-10-21 23:09:46,869 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-10-21 23:09:46,937 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-10-21 23:09:46,937 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 23:09:46,943 INFO L80 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-21 23:09:46,946 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-21 23:09:48,808 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-21 23:09:49,005 INFO L131 LiptonReduction]: Checked pairs total: 2810 [2020-10-21 23:09:49,006 INFO L133 LiptonReduction]: Total number of compositions: 73 [2020-10-21 23:09:49,017 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-21 23:09:49,068 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-21 23:09:49,070 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-21 23:09:49,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 23:09:49,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:09:49,100 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:09:49,101 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:09:49,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:09:49,107 INFO L82 PathProgramCache]: Analyzing trace with hash -853874994, now seen corresponding path program 1 times [2020-10-21 23:09:49,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:09:49,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136444619] [2020-10-21 23:09:49,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:09:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:09:49,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:09:49,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136444619] [2020-10-21 23:09:49,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:09:49,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:09:49,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528265722] [2020-10-21 23:09:49,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:09:49,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:09:49,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:09:49,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:09:49,475 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-21 23:09:49,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:09:49,524 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-21 23:09:49,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:09:49,526 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 23:09:49,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:09:49,543 INFO L225 Difference]: With dead ends: 282 [2020-10-21 23:09:49,544 INFO L226 Difference]: Without dead ends: 218 [2020-10-21 23:09:49,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:09:49,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-21 23:09:49,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-21 23:09:49,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-21 23:09:49,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-21 23:09:49,627 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-21 23:09:49,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:09:49,630 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-21 23:09:49,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:09:49,631 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-21 23:09:49,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 23:09:49,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:09:49,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:09:49,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 23:09:49,633 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:09:49,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:09:49,637 INFO L82 PathProgramCache]: Analyzing trace with hash -700352928, now seen corresponding path program 1 times [2020-10-21 23:09:49,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:09:49,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226259319] [2020-10-21 23:09:49,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:09:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:09:49,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:09:49,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226259319] [2020-10-21 23:09:49,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:09:49,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:09:49,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702671292] [2020-10-21 23:09:49,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:09:49,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:09:49,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:09:49,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:09:49,736 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-10-21 23:09:49,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:09:49,801 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-10-21 23:09:49,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:09:49,806 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-21 23:09:49,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:09:49,808 INFO L225 Difference]: With dead ends: 242 [2020-10-21 23:09:49,810 INFO L226 Difference]: Without dead ends: 146 [2020-10-21 23:09:49,811 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:09:49,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-21 23:09:49,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-21 23:09:49,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-21 23:09:49,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-10-21 23:09:49,833 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-10-21 23:09:49,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:09:49,833 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-10-21 23:09:49,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:09:49,833 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-10-21 23:09:49,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 23:09:49,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:09:49,835 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:09:49,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 23:09:49,835 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:09:49,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:09:49,836 INFO L82 PathProgramCache]: Analyzing trace with hash 2063010818, now seen corresponding path program 1 times [2020-10-21 23:09:49,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:09:49,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037769017] [2020-10-21 23:09:49,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:09:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:09:49,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:09:49,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037769017] [2020-10-21 23:09:49,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:09:49,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:09:49,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398222357] [2020-10-21 23:09:49,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:09:49,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:09:49,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:09:49,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:09:49,886 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-10-21 23:09:49,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:09:49,892 INFO L93 Difference]: Finished difference Result 140 states and 343 transitions. [2020-10-21 23:09:49,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:09:49,893 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-21 23:09:49,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:09:49,895 INFO L225 Difference]: With dead ends: 140 [2020-10-21 23:09:49,895 INFO L226 Difference]: Without dead ends: 140 [2020-10-21 23:09:49,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:09:49,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-21 23:09:49,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-10-21 23:09:49,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-21 23:09:49,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 343 transitions. [2020-10-21 23:09:49,905 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 343 transitions. Word has length 11 [2020-10-21 23:09:49,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:09:49,906 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 343 transitions. [2020-10-21 23:09:49,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:09:49,906 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 343 transitions. [2020-10-21 23:09:49,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 23:09:49,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:09:49,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:09:49,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 23:09:49,908 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:09:49,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:09:49,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1374781277, now seen corresponding path program 1 times [2020-10-21 23:09:49,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:09:49,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657607104] [2020-10-21 23:09:49,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:09:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:09:49,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:09:49,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657607104] [2020-10-21 23:09:49,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:09:49,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:09:49,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527677269] [2020-10-21 23:09:49,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:09:49,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:09:49,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:09:49,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:09:49,972 INFO L87 Difference]: Start difference. First operand 140 states and 343 transitions. Second operand 4 states. [2020-10-21 23:09:49,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:09:49,991 INFO L93 Difference]: Finished difference Result 158 states and 376 transitions. [2020-10-21 23:09:49,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:09:49,991 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-21 23:09:49,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:09:49,992 INFO L225 Difference]: With dead ends: 158 [2020-10-21 23:09:49,992 INFO L226 Difference]: Without dead ends: 68 [2020-10-21 23:09:49,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:09:49,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-21 23:09:49,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-21 23:09:49,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-21 23:09:49,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-10-21 23:09:49,999 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-10-21 23:09:49,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:09:49,999 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-10-21 23:09:49,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:09:49,999 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-10-21 23:09:50,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 23:09:50,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:09:50,000 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:09:50,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 23:09:50,001 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:09:50,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:09:50,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1721558133, now seen corresponding path program 1 times [2020-10-21 23:09:50,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:09:50,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36707858] [2020-10-21 23:09:50,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:09:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:09:50,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:09:50,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36707858] [2020-10-21 23:09:50,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:09:50,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:09:50,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319277713] [2020-10-21 23:09:50,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:09:50,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:09:50,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:09:50,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:09:50,044 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 4 states. [2020-10-21 23:09:50,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:09:50,058 INFO L93 Difference]: Finished difference Result 56 states and 112 transitions. [2020-10-21 23:09:50,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:09:50,058 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-21 23:09:50,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:09:50,059 INFO L225 Difference]: With dead ends: 56 [2020-10-21 23:09:50,059 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 23:09:50,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:09:50,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 23:09:50,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 23:09:50,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 23:09:50,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 23:09:50,060 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-21 23:09:50,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:09:50,061 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 23:09:50,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:09:50,061 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 23:09:50,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 23:09:50,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 23:09:50,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 11:09:50 BasicIcfg [2020-10-21 23:09:50,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 23:09:50,067 INFO L168 Benchmark]: Toolchain (without parser) took 4661.43 ms. Allocated memory was 140.0 MB in the beginning and 247.5 MB in the end (delta: 107.5 MB). Free memory was 102.4 MB in the beginning and 151.2 MB in the end (delta: -48.8 MB). Peak memory consumption was 58.7 MB. Max. memory is 7.1 GB. [2020-10-21 23:09:50,068 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-21 23:09:50,069 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.32 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 159.2 MB in the end (delta: -57.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-10-21 23:09:50,070 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.41 ms. Allocated memory is still 203.4 MB. Free memory was 159.2 MB in the beginning and 157.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:09:50,071 INFO L168 Benchmark]: Boogie Preprocessor took 30.37 ms. Allocated memory is still 203.4 MB. Free memory was 157.2 MB in the beginning and 155.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:09:50,071 INFO L168 Benchmark]: RCFGBuilder took 496.71 ms. Allocated memory is still 203.4 MB. Free memory was 155.2 MB in the beginning and 131.6 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-10-21 23:09:50,072 INFO L168 Benchmark]: TraceAbstraction took 3371.87 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 131.0 MB in the beginning and 151.2 MB in the end (delta: -20.2 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-10-21 23:09:50,077 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 701.32 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 159.2 MB in the end (delta: -57.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.41 ms. Allocated memory is still 203.4 MB. Free memory was 159.2 MB in the beginning and 157.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.37 ms. Allocated memory is still 203.4 MB. Free memory was 157.2 MB in the beginning and 155.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 496.71 ms. Allocated memory is still 203.4 MB. Free memory was 155.2 MB in the beginning and 131.6 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3371.87 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 131.0 MB in the beginning and 151.2 MB in the end (delta: -20.2 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 801 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 59 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.1s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 73 TotalNumberOfCompositions, 2810 MoverChecksTotal - PositiveResult [Line: 17]: 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, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 81 SDtfs, 75 SDslu, 56 SDs, 0 SdLazy, 18 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1434 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...