/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:28:01,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:28:01,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:28:01,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:28:01,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:28:01,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:28:01,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:28:01,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:28:01,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:28:01,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:28:01,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:28:01,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:28:01,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:28:01,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:28:01,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:28:01,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:28:01,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:28:01,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:28:01,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:28:01,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:28:01,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:28:01,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:28:01,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:28:01,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:28:01,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 21:28:01,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:28:01,665 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:28:01,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:28:01,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:28:01,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:28:01,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:28:01,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:28:01,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:28:01,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:28:01,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:28:01,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:28:01,674 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf [2021-01-20 21:28:01,725 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:28:01,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:28:01,730 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:28:01,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:28:01,730 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:28:01,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:28:01,731 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:28:01,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:28:01,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:28:01,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:28:01,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:28:01,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:28:01,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:28:01,734 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:28:01,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:28:01,734 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:28:01,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:28:01,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:28:01,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:28:01,735 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:28:01,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:28:01,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:28:01,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:28:01,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:28:01,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:28:01,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:28:01,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:28:01,738 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:28:01,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:28:01,738 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:28:01,739 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:28:01,739 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:28:02,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:28:02,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:28:02,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:28:02,194 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:28:02,195 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:28:02,196 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.oepc.i [2021-01-20 21:28:02,274 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b43c3eacc/7770517045894d77a696378b6754085b/FLAGcc09464fd [2021-01-20 21:28:03,074 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:28:03,074 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_tso.oepc.i [2021-01-20 21:28:03,092 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b43c3eacc/7770517045894d77a696378b6754085b/FLAGcc09464fd [2021-01-20 21:28:03,324 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b43c3eacc/7770517045894d77a696378b6754085b [2021-01-20 21:28:03,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:28:03,332 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:28:03,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:28:03,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:28:03,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:28:03,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:28:03" (1/1) ... [2021-01-20 21:28:03,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39c4c658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:03, skipping insertion in model container [2021-01-20 21:28:03,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:28:03" (1/1) ... [2021-01-20 21:28:03,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:28:03,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:28:03,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:28:03,883 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:28:03,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:28:04,057 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:28:04,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:04 WrapperNode [2021-01-20 21:28:04,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:28:04,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:28:04,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:28:04,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:28:04,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:04" (1/1) ... [2021-01-20 21:28:04,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:04" (1/1) ... [2021-01-20 21:28:04,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:28:04,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:28:04,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:28:04,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:28:04,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:04" (1/1) ... [2021-01-20 21:28:04,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:04" (1/1) ... [2021-01-20 21:28:04,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:04" (1/1) ... [2021-01-20 21:28:04,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:04" (1/1) ... [2021-01-20 21:28:04,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:04" (1/1) ... [2021-01-20 21:28:04,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:04" (1/1) ... [2021-01-20 21:28:04,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:04" (1/1) ... [2021-01-20 21:28:04,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:28:04,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:28:04,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:28:04,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:28:04,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:04" (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 [2021-01-20 21:28:04,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:28:04,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:28:04,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:28:04,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:28:04,287 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:28:04,287 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:28:04,287 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:28:04,289 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:28:04,289 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 21:28:04,289 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 21:28:04,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:28:04,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:28:04,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:28:04,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:28:04,291 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 21:28:04,703 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:28:04,703 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 21:28:04,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:28:04 BoogieIcfgContainer [2021-01-20 21:28:04,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:28:04,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:28:04,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:28:04,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:28:04,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:28:03" (1/3) ... [2021-01-20 21:28:04,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26bb3107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:28:04, skipping insertion in model container [2021-01-20 21:28:04,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:04" (2/3) ... [2021-01-20 21:28:04,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26bb3107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:28:04, skipping insertion in model container [2021-01-20 21:28:04,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:28:04" (3/3) ... [2021-01-20 21:28:04,720 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_tso.oepc.i [2021-01-20 21:28:04,734 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:28:04,735 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:28:04,738 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 21:28:04,739 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:28:04,769 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,769 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,769 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,769 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,770 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,770 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,770 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,770 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,772 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,772 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,772 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,772 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,773 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,773 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,773 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,773 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,775 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,775 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,775 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,775 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,775 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,776 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,776 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,776 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,776 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,777 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,777 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,777 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,780 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,780 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,785 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,785 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,787 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,788 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,788 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,788 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:04,790 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:28:04,802 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 21:28:04,823 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:28:04,823 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:28:04,823 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:28:04,823 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:28:04,823 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:28:04,824 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:28:04,824 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:28:04,824 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:28:04,835 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2021-01-20 21:28:05,616 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:05,658 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:05,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-20 21:28:05,705 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:28:05,706 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:28:05,706 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:28:05,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:28:05,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1266406659, now seen corresponding path program 1 times [2021-01-20 21:28:05,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:28:05,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203388640] [2021-01-20 21:28:05,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:28:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:28:06,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:28:06,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203388640] [2021-01-20 21:28:06,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:28:06,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:28:06,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886590722] [2021-01-20 21:28:06,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:28:06,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:28:06,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:28:06,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:28:06,313 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:06,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:28:06,707 INFO L93 Difference]: Finished difference Result 11318 states and 39237 transitions. [2021-01-20 21:28:06,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:28:06,709 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-01-20 21:28:06,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:28:06,712 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:28:06,712 INFO L78 Accepts]: Start accepts. Automaton has 11318 states and 39237 transitions. Word has length 42 [2021-01-20 21:28:06,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:28:06,714 INFO L481 AbstractCegarLoop]: Abstraction has 11318 states and 39237 transitions. [2021-01-20 21:28:06,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:06,714 INFO L276 IsEmpty]: Start isEmpty. Operand 11318 states and 39237 transitions. [2021-01-20 21:28:06,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-20 21:28:06,736 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:28:06,736 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:28:06,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:28:06,736 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:28:06,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:28:06,738 INFO L82 PathProgramCache]: Analyzing trace with hash 429548758, now seen corresponding path program 1 times [2021-01-20 21:28:06,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:28:06,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830832626] [2021-01-20 21:28:06,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:28:06,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:28:07,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:28:07,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830832626] [2021-01-20 21:28:07,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:28:07,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:28:07,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223532282] [2021-01-20 21:28:07,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:28:07,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:28:07,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:28:07,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:28:07,085 INFO L87 Difference]: Start difference. First operand 11318 states and 39237 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:07,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:28:07,547 INFO L93 Difference]: Finished difference Result 24744 states and 84744 transitions. [2021-01-20 21:28:07,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:28:07,548 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-01-20 21:28:07,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:28:07,549 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:28:07,549 INFO L78 Accepts]: Start accepts. Automaton has 24744 states and 84744 transitions. Word has length 45 [2021-01-20 21:28:07,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:28:07,550 INFO L481 AbstractCegarLoop]: Abstraction has 24744 states and 84744 transitions. [2021-01-20 21:28:07,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:07,550 INFO L276 IsEmpty]: Start isEmpty. Operand 24744 states and 84744 transitions. [2021-01-20 21:28:07,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 21:28:07,665 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:28:07,665 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:28:07,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:28:07,666 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:28:07,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:28:07,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1422766975, now seen corresponding path program 1 times [2021-01-20 21:28:07,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:28:07,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170213338] [2021-01-20 21:28:07,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:28:07,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:28:07,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:28:07,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170213338] [2021-01-20 21:28:07,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:28:07,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:28:07,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674144483] [2021-01-20 21:28:07,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:28:07,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:28:07,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:28:07,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:28:07,849 INFO L87 Difference]: Start difference. First operand 24744 states and 84744 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:08,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:28:08,244 INFO L93 Difference]: Finished difference Result 21558 states and 71824 transitions. [2021-01-20 21:28:08,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 21:28:08,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-01-20 21:28:08,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:28:08,246 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:28:08,246 INFO L78 Accepts]: Start accepts. Automaton has 21558 states and 71824 transitions. Word has length 47 [2021-01-20 21:28:08,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:28:08,247 INFO L481 AbstractCegarLoop]: Abstraction has 21558 states and 71824 transitions. [2021-01-20 21:28:08,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:08,247 INFO L276 IsEmpty]: Start isEmpty. Operand 21558 states and 71824 transitions. [2021-01-20 21:28:08,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-20 21:28:08,284 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:28:08,284 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:28:08,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:28:08,285 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:28:08,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:28:08,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1775856222, now seen corresponding path program 1 times [2021-01-20 21:28:08,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:28:08,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987098772] [2021-01-20 21:28:08,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:28:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:28:08,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:28:08,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987098772] [2021-01-20 21:28:08,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:28:08,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:28:08,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913058887] [2021-01-20 21:28:08,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:28:08,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:28:08,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:28:08,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:28:08,503 INFO L87 Difference]: Start difference. First operand 21558 states and 71824 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:08,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:28:08,819 INFO L93 Difference]: Finished difference Result 13368 states and 43072 transitions. [2021-01-20 21:28:08,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:28:08,820 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-01-20 21:28:08,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:28:08,821 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:28:08,821 INFO L78 Accepts]: Start accepts. Automaton has 13368 states and 43072 transitions. Word has length 48 [2021-01-20 21:28:08,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:28:08,821 INFO L481 AbstractCegarLoop]: Abstraction has 13368 states and 43072 transitions. [2021-01-20 21:28:08,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:08,822 INFO L276 IsEmpty]: Start isEmpty. Operand 13368 states and 43072 transitions. [2021-01-20 21:28:08,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-20 21:28:08,848 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:28:08,848 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:28:08,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:28:08,849 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:28:08,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:28:08,850 INFO L82 PathProgramCache]: Analyzing trace with hash -2020113217, now seen corresponding path program 1 times [2021-01-20 21:28:08,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:28:08,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212713855] [2021-01-20 21:28:08,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:28:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:28:08,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:28:08,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212713855] [2021-01-20 21:28:08,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:28:08,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 21:28:08,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302064650] [2021-01-20 21:28:08,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 21:28:08,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:28:08,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 21:28:08,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 21:28:08,971 INFO L87 Difference]: Start difference. First operand 13368 states and 43072 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:09,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:28:09,374 INFO L93 Difference]: Finished difference Result 8418 states and 27094 transitions. [2021-01-20 21:28:09,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-20 21:28:09,374 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-01-20 21:28:09,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:28:09,375 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-01-20 21:28:09,376 INFO L78 Accepts]: Start accepts. Automaton has 8418 states and 27094 transitions. Word has length 50 [2021-01-20 21:28:09,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:28:09,376 INFO L481 AbstractCegarLoop]: Abstraction has 8418 states and 27094 transitions. [2021-01-20 21:28:09,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:09,377 INFO L276 IsEmpty]: Start isEmpty. Operand 8418 states and 27094 transitions. [2021-01-20 21:28:09,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 21:28:09,399 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:28:09,400 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:28:09,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:28:09,400 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:28:09,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:28:09,401 INFO L82 PathProgramCache]: Analyzing trace with hash -54775455, now seen corresponding path program 1 times [2021-01-20 21:28:09,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:28:09,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780736483] [2021-01-20 21:28:09,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:28:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:28:09,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:28:09,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780736483] [2021-01-20 21:28:09,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:28:09,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:28:09,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439804496] [2021-01-20 21:28:09,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:28:09,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:28:09,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:28:09,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:28:09,519 INFO L87 Difference]: Start difference. First operand 8418 states and 27094 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:09,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:28:09,893 INFO L93 Difference]: Finished difference Result 13208 states and 41968 transitions. [2021-01-20 21:28:09,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-20 21:28:09,894 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-01-20 21:28:09,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:28:09,895 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 21:28:09,895 INFO L78 Accepts]: Start accepts. Automaton has 13208 states and 41968 transitions. Word has length 54 [2021-01-20 21:28:09,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:28:09,895 INFO L481 AbstractCegarLoop]: Abstraction has 13208 states and 41968 transitions. [2021-01-20 21:28:09,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:09,896 INFO L276 IsEmpty]: Start isEmpty. Operand 13208 states and 41968 transitions. [2021-01-20 21:28:09,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 21:28:09,925 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:28:09,926 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:28:09,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 21:28:09,926 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:28:09,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:28:09,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1436109045, now seen corresponding path program 2 times [2021-01-20 21:28:09,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:28:09,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773432096] [2021-01-20 21:28:09,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:28:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:28:10,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:28:10,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773432096] [2021-01-20 21:28:10,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:28:10,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:28:10,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483881678] [2021-01-20 21:28:10,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:28:10,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:28:10,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:28:10,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:28:10,035 INFO L87 Difference]: Start difference. First operand 13208 states and 41968 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:10,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:28:10,356 INFO L93 Difference]: Finished difference Result 17918 states and 56638 transitions. [2021-01-20 21:28:10,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-20 21:28:10,357 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-01-20 21:28:10,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:28:10,357 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-01-20 21:28:10,358 INFO L78 Accepts]: Start accepts. Automaton has 17918 states and 56638 transitions. Word has length 54 [2021-01-20 21:28:10,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:28:10,360 INFO L481 AbstractCegarLoop]: Abstraction has 17918 states and 56638 transitions. [2021-01-20 21:28:10,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:10,360 INFO L276 IsEmpty]: Start isEmpty. Operand 17918 states and 56638 transitions. [2021-01-20 21:28:10,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 21:28:10,402 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:28:10,403 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:28:10,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 21:28:10,404 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:28:10,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:28:10,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1423150337, now seen corresponding path program 3 times [2021-01-20 21:28:10,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:28:10,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024504873] [2021-01-20 21:28:10,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:28:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:28:10,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:28:10,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024504873] [2021-01-20 21:28:10,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:28:10,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:28:10,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975230897] [2021-01-20 21:28:10,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:28:10,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:28:10,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:28:10,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:28:10,639 INFO L87 Difference]: Start difference. First operand 17918 states and 56638 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:10,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:28:10,836 INFO L93 Difference]: Finished difference Result 24405 states and 76693 transitions. [2021-01-20 21:28:10,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:28:10,836 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-01-20 21:28:10,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:28:10,837 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:28:10,837 INFO L78 Accepts]: Start accepts. Automaton has 24405 states and 76693 transitions. Word has length 54 [2021-01-20 21:28:10,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:28:10,838 INFO L481 AbstractCegarLoop]: Abstraction has 24405 states and 76693 transitions. [2021-01-20 21:28:10,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:10,838 INFO L276 IsEmpty]: Start isEmpty. Operand 24405 states and 76693 transitions. [2021-01-20 21:28:10,876 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:28:10,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 21:28:10,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:28:10 BasicIcfg [2021-01-20 21:28:10,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:28:10,883 INFO L168 Benchmark]: Toolchain (without parser) took 7550.42 ms. Allocated memory was 302.0 MB in the beginning and 1.3 GB in the end (delta: 989.9 MB). Free memory was 276.7 MB in the beginning and 969.9 MB in the end (delta: -693.2 MB). Peak memory consumption was 299.6 MB. Max. memory is 16.0 GB. [2021-01-20 21:28:10,884 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory was 272.0 MB in the beginning and 272.0 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:28:10,884 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.64 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 245.7 MB in the end (delta: 30.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-01-20 21:28:10,885 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.02 ms. Allocated memory is still 302.0 MB. Free memory was 245.7 MB in the beginning and 283.5 MB in the end (delta: -37.8 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. [2021-01-20 21:28:10,886 INFO L168 Benchmark]: Boogie Preprocessor took 56.45 ms. Allocated memory is still 302.0 MB. Free memory was 283.5 MB in the beginning and 282.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:28:10,887 INFO L168 Benchmark]: RCFGBuilder took 517.87 ms. Allocated memory is still 302.0 MB. Free memory was 282.4 MB in the beginning and 259.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-01-20 21:28:10,888 INFO L168 Benchmark]: TraceAbstraction took 6167.13 ms. Allocated memory was 302.0 MB in the beginning and 1.3 GB in the end (delta: 989.9 MB). Free memory was 259.4 MB in the beginning and 969.9 MB in the end (delta: -710.6 MB). Peak memory consumption was 280.3 MB. Max. memory is 16.0 GB. [2021-01-20 21:28:10,892 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory was 272.0 MB in the beginning and 272.0 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 722.64 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 245.7 MB in the end (delta: 30.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 76.02 ms. Allocated memory is still 302.0 MB. Free memory was 245.7 MB in the beginning and 283.5 MB in the end (delta: -37.8 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 56.45 ms. Allocated memory is still 302.0 MB. Free memory was 283.5 MB in the beginning and 282.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 517.87 ms. Allocated memory is still 302.0 MB. Free memory was 282.4 MB in the beginning and 259.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6167.13 ms. Allocated memory was 302.0 MB in the beginning and 1.3 GB in the end (delta: 989.9 MB). Free memory was 259.4 MB in the beginning and 969.9 MB in the end (delta: -710.6 MB). Peak memory consumption was 280.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.0s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.7s, HoareTripleCheckerStatistics: 975 SDtfs, 1678 SDslu, 3447 SDs, 0 SdLazy, 390 SolverSat, 82 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24744occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 394 NumberOfCodeBlocks, 394 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 386 ConstructedInterpolants, 0 QuantifiedInterpolants, 45628 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...