/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-14 23:47:53,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-14 23:47:53,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-14 23:47:53,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-14 23:47:53,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-14 23:47:53,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-14 23:47:53,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-14 23:47:53,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-14 23:47:53,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-14 23:47:53,633 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-14 23:47:53,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-14 23:47:53,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-14 23:47:53,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-14 23:47:53,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-14 23:47:53,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-14 23:47:53,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-14 23:47:53,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-14 23:47:53,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-14 23:47:53,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-14 23:47:53,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-14 23:47:53,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-14 23:47:53,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-14 23:47:53,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-14 23:47:53,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-14 23:47:53,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-14 23:47:53,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-14 23:47:53,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-14 23:47:53,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-14 23:47:53,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-14 23:47:53,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-14 23:47:53,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-14 23:47:53,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-14 23:47:53,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-14 23:47:53,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-14 23:47:53,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-14 23:47:53,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-14 23:47:53,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-14 23:47:53,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-14 23:47:53,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-14 23:47:53,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-14 23:47:53,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-14 23:47:53,688 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-14 23:47:53,737 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-14 23:47:53,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-14 23:47:53,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-14 23:47:53,740 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-14 23:47:53,740 INFO L138 SettingsManager]: * Use SBE=true [2020-09-14 23:47:53,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-14 23:47:53,741 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-14 23:47:53,741 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-14 23:47:53,741 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-14 23:47:53,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-14 23:47:53,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-14 23:47:53,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-14 23:47:53,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-14 23:47:53,743 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-14 23:47:53,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-14 23:47:53,744 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-14 23:47:53,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-14 23:47:53,744 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-14 23:47:53,744 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-14 23:47:53,745 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-14 23:47:53,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-14 23:47:53,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-14 23:47:53,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-14 23:47:53,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-14 23:47:53,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-14 23:47:53,746 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-14 23:47:53,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-14 23:47:53,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-14 23:47:53,747 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-14 23:47:53,747 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-14 23:47:54,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-14 23:47:54,203 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-14 23:47:54,207 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-14 23:47:54,209 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-14 23:47:54,210 INFO L275 PluginConnector]: CDTParser initialized [2020-09-14 23:47:54,211 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2020-09-14 23:47:54,291 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d502fcfb/f7f7cca22f25419da434c5a3e64757b8/FLAG98980b8ff [2020-09-14 23:47:54,982 INFO L306 CDTParser]: Found 1 translation units. [2020-09-14 23:47:54,985 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2020-09-14 23:47:55,011 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d502fcfb/f7f7cca22f25419da434c5a3e64757b8/FLAG98980b8ff [2020-09-14 23:47:55,169 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d502fcfb/f7f7cca22f25419da434c5a3e64757b8 [2020-09-14 23:47:55,181 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-14 23:47:55,188 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-14 23:47:55,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-14 23:47:55,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-14 23:47:55,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-14 23:47:55,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 11:47:55" (1/1) ... [2020-09-14 23:47:55,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eca95a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:47:55, skipping insertion in model container [2020-09-14 23:47:55,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 11:47:55" (1/1) ... [2020-09-14 23:47:55,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-14 23:47:55,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-14 23:47:55,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-14 23:47:55,793 INFO L203 MainTranslator]: Completed pre-run [2020-09-14 23:47:55,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-14 23:47:55,927 INFO L208 MainTranslator]: Completed translation [2020-09-14 23:47:55,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:47:55 WrapperNode [2020-09-14 23:47:55,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-14 23:47:55,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-14 23:47:55,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-14 23:47:55,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-14 23:47:55,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:47:55" (1/1) ... [2020-09-14 23:47:55,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:47:55" (1/1) ... [2020-09-14 23:47:55,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-14 23:47:55,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-14 23:47:55,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-14 23:47:55,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-14 23:47:56,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:47:55" (1/1) ... [2020-09-14 23:47:56,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:47:55" (1/1) ... [2020-09-14 23:47:56,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:47:55" (1/1) ... [2020-09-14 23:47:56,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:47:55" (1/1) ... [2020-09-14 23:47:56,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:47:55" (1/1) ... [2020-09-14 23:47:56,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:47:55" (1/1) ... [2020-09-14 23:47:56,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:47:55" (1/1) ... [2020-09-14 23:47:56,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-14 23:47:56,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-14 23:47:56,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-14 23:47:56,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-14 23:47:56,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:47:55" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-14 23:47:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-14 23:47:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-14 23:47:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-14 23:47:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-14 23:47:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-14 23:47:56,097 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-14 23:47:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-14 23:47:56,098 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-14 23:47:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-14 23:47:56,098 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-14 23:47:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-14 23:47:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-14 23:47:56,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-14 23:47:56,101 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-14 23:47:56,528 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-14 23:47:56,528 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-14 23:47:56,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 11:47:56 BoogieIcfgContainer [2020-09-14 23:47:56,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-14 23:47:56,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-14 23:47:56,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-14 23:47:56,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-14 23:47:56,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 11:47:55" (1/3) ... [2020-09-14 23:47:56,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3173f700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 11:47:56, skipping insertion in model container [2020-09-14 23:47:56,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:47:55" (2/3) ... [2020-09-14 23:47:56,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3173f700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 11:47:56, skipping insertion in model container [2020-09-14 23:47:56,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 11:47:56" (3/3) ... [2020-09-14 23:47:56,544 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_tso.oepc.i [2020-09-14 23:47:56,556 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-14 23:47:56,557 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-14 23:47:56,567 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-14 23:47:56,568 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-14 23:47:56,598 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,598 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,598 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,599 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,599 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,600 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,600 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,600 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,601 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,601 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,601 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,601 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,602 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,602 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,602 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,603 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,603 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,603 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,608 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,608 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,609 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,609 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,617 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,617 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,617 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,618 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,620 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,621 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,621 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,621 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:47:56,645 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-14 23:47:56,668 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-14 23:47:56,668 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-14 23:47:56,669 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-14 23:47:56,669 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-14 23:47:56,669 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-14 23:47:56,669 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-14 23:47:56,669 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-14 23:47:56,670 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-14 23:47:56,689 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-09-14 23:47:56,692 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-09-14 23:47:56,743 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-09-14 23:47:56,743 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-14 23:47:56,750 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-14 23:47:56,753 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-09-14 23:47:56,789 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-09-14 23:47:56,789 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-14 23:47:56,790 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-14 23:47:56,797 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-14 23:47:56,798 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-14 23:47:58,161 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-09-14 23:47:58,290 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2202 [2020-09-14 23:47:58,291 INFO L214 etLargeBlockEncoding]: Total number of compositions: 55 [2020-09-14 23:47:58,295 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-14 23:47:58,325 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-14 23:47:58,328 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-14 23:47:58,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-14 23:47:58,338 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:47:58,339 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:47:58,339 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:47:58,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:47:58,347 INFO L82 PathProgramCache]: Analyzing trace with hash -346907981, now seen corresponding path program 1 times [2020-09-14 23:47:58,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:47:58,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32741685] [2020-09-14 23:47:58,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:47:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:47:58,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:47:58,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32741685] [2020-09-14 23:47:58,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:47:58,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 23:47:58,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558268339] [2020-09-14 23:47:58,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-14 23:47:58,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:47:58,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-14 23:47:58,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-14 23:47:58,606 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-14 23:47:58,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:47:58,644 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-14 23:47:58,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-14 23:47:58,646 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-14 23:47:58,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:47:58,667 INFO L225 Difference]: With dead ends: 362 [2020-09-14 23:47:58,667 INFO L226 Difference]: Without dead ends: 298 [2020-09-14 23:47:58,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-14 23:47:58,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-14 23:47:58,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-14 23:47:58,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-14 23:47:58,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-14 23:47:58,761 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-14 23:47:58,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:47:58,762 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-14 23:47:58,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-14 23:47:58,763 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-14 23:47:58,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-14 23:47:58,764 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:47:58,764 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:47:58,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-14 23:47:58,765 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:47:58,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:47:58,765 INFO L82 PathProgramCache]: Analyzing trace with hash 2130750683, now seen corresponding path program 1 times [2020-09-14 23:47:58,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:47:58,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404356674] [2020-09-14 23:47:58,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:47:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:47:58,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:47:58,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404356674] [2020-09-14 23:47:58,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:47:58,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 23:47:58,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876145299] [2020-09-14 23:47:58,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-14 23:47:58,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:47:58,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-14 23:47:58,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 23:47:58,901 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-09-14 23:47:58,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:47:58,923 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-09-14 23:47:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-14 23:47:58,924 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-14 23:47:58,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:47:58,927 INFO L225 Difference]: With dead ends: 217 [2020-09-14 23:47:58,927 INFO L226 Difference]: Without dead ends: 217 [2020-09-14 23:47:58,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 23:47:58,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-09-14 23:47:58,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-09-14 23:47:58,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-14 23:47:58,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-09-14 23:47:58,946 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-09-14 23:47:58,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:47:58,946 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-09-14 23:47:58,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-14 23:47:58,947 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-09-14 23:47:58,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-14 23:47:58,949 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:47:58,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:47:58,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-14 23:47:58,949 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:47:58,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:47:58,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1087116204, now seen corresponding path program 1 times [2020-09-14 23:47:58,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:47:58,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855620808] [2020-09-14 23:47:58,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:47:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:47:59,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:47:59,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855620808] [2020-09-14 23:47:59,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:47:59,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 23:47:59,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513756076] [2020-09-14 23:47:59,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 23:47:59,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:47:59,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 23:47:59,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-14 23:47:59,039 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-09-14 23:47:59,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:47:59,074 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-09-14 23:47:59,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-14 23:47:59,074 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-14 23:47:59,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:47:59,076 INFO L225 Difference]: With dead ends: 136 [2020-09-14 23:47:59,076 INFO L226 Difference]: Without dead ends: 136 [2020-09-14 23:47:59,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-14 23:47:59,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-09-14 23:47:59,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-09-14 23:47:59,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-09-14 23:47:59,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-09-14 23:47:59,086 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-09-14 23:47:59,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:47:59,087 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-09-14 23:47:59,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 23:47:59,087 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-09-14 23:47:59,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-14 23:47:59,089 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:47:59,089 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:47:59,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-14 23:47:59,089 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:47:59,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:47:59,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1427017344, now seen corresponding path program 1 times [2020-09-14 23:47:59,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:47:59,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690392322] [2020-09-14 23:47:59,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:47:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:47:59,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:47:59,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690392322] [2020-09-14 23:47:59,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:47:59,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-14 23:47:59,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824465723] [2020-09-14 23:47:59,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-14 23:47:59,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:47:59,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-14 23:47:59,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:47:59,185 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-09-14 23:47:59,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:47:59,217 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-09-14 23:47:59,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-14 23:47:59,218 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-14 23:47:59,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:47:59,219 INFO L225 Difference]: With dead ends: 109 [2020-09-14 23:47:59,219 INFO L226 Difference]: Without dead ends: 109 [2020-09-14 23:47:59,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:47:59,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-14 23:47:59,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-09-14 23:47:59,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-14 23:47:59,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-09-14 23:47:59,225 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-09-14 23:47:59,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:47:59,226 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-09-14 23:47:59,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-14 23:47:59,226 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-09-14 23:47:59,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-14 23:47:59,228 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:47:59,228 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:47:59,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-14 23:47:59,228 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:47:59,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:47:59,229 INFO L82 PathProgramCache]: Analyzing trace with hash 68730238, now seen corresponding path program 1 times [2020-09-14 23:47:59,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:47:59,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409657348] [2020-09-14 23:47:59,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:47:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:47:59,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:47:59,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409657348] [2020-09-14 23:47:59,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:47:59,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 23:47:59,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361540010] [2020-09-14 23:47:59,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 23:47:59,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:47:59,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 23:47:59,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 23:47:59,327 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-09-14 23:47:59,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:47:59,346 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-09-14 23:47:59,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-14 23:47:59,347 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-09-14 23:47:59,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:47:59,348 INFO L225 Difference]: With dead ends: 135 [2020-09-14 23:47:59,348 INFO L226 Difference]: Without dead ends: 55 [2020-09-14 23:47:59,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:47:59,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-14 23:47:59,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-14 23:47:59,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-14 23:47:59,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-09-14 23:47:59,352 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-09-14 23:47:59,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:47:59,352 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-09-14 23:47:59,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 23:47:59,353 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-09-14 23:47:59,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-14 23:47:59,353 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:47:59,354 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:47:59,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-14 23:47:59,354 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:47:59,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:47:59,355 INFO L82 PathProgramCache]: Analyzing trace with hash 909729134, now seen corresponding path program 2 times [2020-09-14 23:47:59,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:47:59,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062200988] [2020-09-14 23:47:59,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:47:59,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:47:59,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:47:59,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062200988] [2020-09-14 23:47:59,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:47:59,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 23:47:59,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945399425] [2020-09-14 23:47:59,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 23:47:59,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:47:59,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 23:47:59,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 23:47:59,431 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 4 states. [2020-09-14 23:47:59,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:47:59,453 INFO L93 Difference]: Finished difference Result 75 states and 132 transitions. [2020-09-14 23:47:59,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-14 23:47:59,453 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-09-14 23:47:59,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:47:59,454 INFO L225 Difference]: With dead ends: 75 [2020-09-14 23:47:59,454 INFO L226 Difference]: Without dead ends: 37 [2020-09-14 23:47:59,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:47:59,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-14 23:47:59,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-09-14 23:47:59,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-14 23:47:59,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-09-14 23:47:59,457 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-09-14 23:47:59,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:47:59,458 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-09-14 23:47:59,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 23:47:59,458 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-09-14 23:47:59,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-14 23:47:59,459 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:47:59,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:47:59,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-14 23:47:59,459 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:47:59,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:47:59,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1816005352, now seen corresponding path program 3 times [2020-09-14 23:47:59,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:47:59,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732853543] [2020-09-14 23:47:59,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:47:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:47:59,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:47:59,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732853543] [2020-09-14 23:47:59,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:47:59,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 23:47:59,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875338439] [2020-09-14 23:47:59,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 23:47:59,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:47:59,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 23:47:59,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 23:47:59,527 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 4 states. [2020-09-14 23:47:59,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:47:59,540 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-09-14 23:47:59,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-14 23:47:59,540 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-09-14 23:47:59,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:47:59,540 INFO L225 Difference]: With dead ends: 36 [2020-09-14 23:47:59,541 INFO L226 Difference]: Without dead ends: 0 [2020-09-14 23:47:59,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:47:59,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-14 23:47:59,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-14 23:47:59,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-14 23:47:59,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-14 23:47:59,542 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-09-14 23:47:59,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:47:59,542 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-14 23:47:59,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 23:47:59,543 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-14 23:47:59,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-14 23:47:59,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-14 23:47:59,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 11:47:59 BasicIcfg [2020-09-14 23:47:59,548 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-14 23:47:59,550 INFO L168 Benchmark]: Toolchain (without parser) took 4367.23 ms. Allocated memory was 140.0 MB in the beginning and 248.0 MB in the end (delta: 108.0 MB). Free memory was 101.0 MB in the beginning and 104.9 MB in the end (delta: -3.9 MB). Peak memory consumption was 104.1 MB. Max. memory is 7.1 GB. [2020-09-14 23:47:59,551 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-14 23:47:59,552 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.61 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 162.3 MB in the end (delta: -61.9 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-09-14 23:47:59,553 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.88 ms. Allocated memory is still 203.9 MB. Free memory was 162.3 MB in the beginning and 159.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-14 23:47:59,554 INFO L168 Benchmark]: Boogie Preprocessor took 32.24 ms. Allocated memory is still 203.9 MB. Free memory was 159.6 MB in the beginning and 158.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-14 23:47:59,555 INFO L168 Benchmark]: RCFGBuilder took 512.22 ms. Allocated memory is still 203.9 MB. Free memory was 158.3 MB in the beginning and 136.4 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-09-14 23:47:59,556 INFO L168 Benchmark]: TraceAbstraction took 3012.48 ms. Allocated memory was 203.9 MB in the beginning and 248.0 MB in the end (delta: 44.0 MB). Free memory was 136.4 MB in the beginning and 104.9 MB in the end (delta: 31.5 MB). Peak memory consumption was 75.5 MB. Max. memory is 7.1 GB. [2020-09-14 23:47:59,560 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 736.61 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 162.3 MB in the end (delta: -61.9 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.88 ms. Allocated memory is still 203.9 MB. Free memory was 162.3 MB in the beginning and 159.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.24 ms. Allocated memory is still 203.9 MB. Free memory was 159.6 MB in the beginning and 158.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 512.22 ms. Allocated memory is still 203.9 MB. Free memory was 158.3 MB in the beginning and 136.4 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3012.48 ms. Allocated memory was 203.9 MB in the beginning and 248.0 MB in the end (delta: 44.0 MB). Free memory was 136.4 MB in the beginning and 104.9 MB in the end (delta: 31.5 MB). Peak memory consumption was 75.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 76 ProgramPointsBefore, 32 ProgramPointsAfterwards, 68 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 692 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 14 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2202 CheckedPairsTotal, 55 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 130 SDtfs, 72 SDslu, 159 SDs, 0 SdLazy, 49 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2522 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...