/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 19:34:44,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 19:34:44,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 19:34:44,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 19:34:44,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 19:34:44,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 19:34:44,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 19:34:44,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 19:34:44,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 19:34:44,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 19:34:44,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 19:34:44,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 19:34:44,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 19:34:44,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 19:34:44,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 19:34:44,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 19:34:44,742 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 19:34:44,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 19:34:44,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 19:34:44,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 19:34:44,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 19:34:44,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 19:34:44,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 19:34:44,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 19:34:44,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 19:34:44,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 19:34:44,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 19:34:44,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 19:34:44,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 19:34:44,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 19:34:44,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 19:34:44,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 19:34:44,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 19:34:44,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 19:34:44,773 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 19:34:44,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 19:34:44,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 19:34:44,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 19:34:44,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 19:34:44,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 19:34:44,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 19:34:44,781 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-McrStrategy.epf [2020-04-18 19:34:44,816 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 19:34:44,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 19:34:44,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 19:34:44,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 19:34:44,821 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 19:34:44,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 19:34:44,821 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 19:34:44,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 19:34:44,822 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 19:34:44,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 19:34:44,822 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 19:34:44,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 19:34:44,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 19:34:44,823 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 19:34:44,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 19:34:44,823 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 19:34:44,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 19:34:44,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 19:34:44,824 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 19:34:44,824 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 19:34:44,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 19:34:44,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 19:34:44,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 19:34:44,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 19:34:44,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 19:34:44,828 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 19:34:44,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 19:34:44,828 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 19:34:44,828 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 19:34:44,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 19:34:44,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 19:34:45,109 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 19:34:45,123 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 19:34:45,128 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 19:34:45,129 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 19:34:45,130 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 19:34:45,132 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2020-04-18 19:34:45,206 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d790c41bf/582ec3957ad24d3096485ddeafebe273/FLAG740430f07 [2020-04-18 19:34:45,745 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 19:34:45,746 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2020-04-18 19:34:45,766 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d790c41bf/582ec3957ad24d3096485ddeafebe273/FLAG740430f07 [2020-04-18 19:34:46,045 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d790c41bf/582ec3957ad24d3096485ddeafebe273 [2020-04-18 19:34:46,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 19:34:46,076 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 19:34:46,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 19:34:46,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 19:34:46,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 19:34:46,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:34:46" (1/1) ... [2020-04-18 19:34:46,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f5631ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:34:46, skipping insertion in model container [2020-04-18 19:34:46,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:34:46" (1/1) ... [2020-04-18 19:34:46,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 19:34:46,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 19:34:46,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:34:46,656 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 19:34:46,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:34:46,799 INFO L208 MainTranslator]: Completed translation [2020-04-18 19:34:46,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:34:46 WrapperNode [2020-04-18 19:34:46,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 19:34:46,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 19:34:46,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 19:34:46,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 19:34:46,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:34:46" (1/1) ... [2020-04-18 19:34:46,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:34:46" (1/1) ... [2020-04-18 19:34:46,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 19:34:46,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 19:34:46,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 19:34:46,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 19:34:46,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:34:46" (1/1) ... [2020-04-18 19:34:46,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:34:46" (1/1) ... [2020-04-18 19:34:46,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:34:46" (1/1) ... [2020-04-18 19:34:46,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:34:46" (1/1) ... [2020-04-18 19:34:46,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:34:46" (1/1) ... [2020-04-18 19:34:46,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:34:46" (1/1) ... [2020-04-18 19:34:46,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:34:46" (1/1) ... [2020-04-18 19:34:46,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 19:34:46,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 19:34:46,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 19:34:46,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 19:34:46,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:34:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 19:34:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 19:34:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 19:34:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 19:34:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 19:34:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 19:34:46,952 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 19:34:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 19:34:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 19:34:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 19:34:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 19:34:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 19:34:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 19:34:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 19:34:46,955 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 19:34:47,342 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 19:34:47,342 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 19:34:47,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:34:47 BoogieIcfgContainer [2020-04-18 19:34:47,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 19:34:47,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 19:34:47,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 19:34:47,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 19:34:47,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:34:46" (1/3) ... [2020-04-18 19:34:47,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ae13f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:34:47, skipping insertion in model container [2020-04-18 19:34:47,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:34:46" (2/3) ... [2020-04-18 19:34:47,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ae13f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:34:47, skipping insertion in model container [2020-04-18 19:34:47,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:34:47" (3/3) ... [2020-04-18 19:34:47,357 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_tso.opt.i [2020-04-18 19:34:47,368 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 19:34:47,369 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 19:34:47,377 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 19:34:47,378 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 19:34:47,412 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,413 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,413 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,414 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,414 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,414 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,415 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,415 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,416 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,416 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,416 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,417 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,417 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,417 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,418 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,418 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,418 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,419 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,423 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,424 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,425 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,425 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,431 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,432 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,432 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,432 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,436 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,436 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,437 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,437 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:34:47,466 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 19:34:47,485 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 19:34:47,485 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 19:34:47,485 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 19:34:47,485 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 19:34:47,485 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 19:34:47,486 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 19:34:47,486 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 19:34:47,486 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 19:34:47,500 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 69 transitions, 153 flow [2020-04-18 19:34:47,981 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 8471 states. [2020-04-18 19:34:47,984 INFO L276 IsEmpty]: Start isEmpty. Operand 8471 states. [2020-04-18 19:34:48,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 19:34:48,012 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:34:48,013 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:34:48,014 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:34:48,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:48,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1532593683, now seen corresponding path program 1 times [2020-04-18 19:34:48,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:34:48,028 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [947034057] [2020-04-18 19:34:48,044 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:48,059 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 35 transitions. [2020-04-18 19:34:48,062 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-04-18 19:34:48,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 19:34:48,063 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:34:48,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:48,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1532593683, now seen corresponding path program 2 times [2020-04-18 19:34:48,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:34:48,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54520238] [2020-04-18 19:34:48,068 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:34:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:34:48,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:34:48,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54520238] [2020-04-18 19:34:48,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:34:48,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:34:48,586 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:34:48,592 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:48,604 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 35 transitions. [2020-04-18 19:34:48,604 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:34:48,681 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:34:48,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:34:48,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:34:48,690 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 7 states. [2020-04-18 19:34:48,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:48,788 INFO L93 Difference]: Finished difference Result 36 states and 35 transitions. [2020-04-18 19:34:48,788 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 35 transitions. [2020-04-18 19:34:48,789 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:34:48,790 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [947034057] [2020-04-18 19:34:48,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:34:48,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:34:48,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [947034057] [2020-04-18 19:34:48,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:34:48,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:34:48,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:34:48,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 19:34:48,798 INFO L87 Difference]: Start difference. First operand 8471 states. Second operand 7 states. [2020-04-18 19:34:49,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:49,385 INFO L93 Difference]: Finished difference Result 18203 states and 62568 transitions. [2020-04-18 19:34:49,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 19:34:49,387 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-04-18 19:34:49,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:34:49,466 INFO L225 Difference]: With dead ends: 18203 [2020-04-18 19:34:49,466 INFO L226 Difference]: Without dead ends: 5701 [2020-04-18 19:34:49,471 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 19:34:49,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5701 states. [2020-04-18 19:34:49,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5701 to 4693. [2020-04-18 19:34:49,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4693 states. [2020-04-18 19:34:49,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4693 states to 4693 states and 15602 transitions. [2020-04-18 19:34:49,879 INFO L78 Accepts]: Start accepts. Automaton has 4693 states and 15602 transitions. Word has length 35 [2020-04-18 19:34:49,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:34:49,881 INFO L479 AbstractCegarLoop]: Abstraction has 4693 states and 15602 transitions. [2020-04-18 19:34:49,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:34:49,881 INFO L276 IsEmpty]: Start isEmpty. Operand 4693 states and 15602 transitions. [2020-04-18 19:34:49,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 19:34:49,892 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:34:49,892 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:34:49,892 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:34:49,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:49,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1078623240, now seen corresponding path program 1 times [2020-04-18 19:34:49,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:34:49,894 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [988633928] [2020-04-18 19:34:49,895 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:49,903 INFO L259 McrAutomatonBuilder]: Finished intersection with 87 states and 134 transitions. [2020-04-18 19:34:49,904 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-04-18 19:34:49,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 19:34:49,905 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:34:49,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:49,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1078623240, now seen corresponding path program 2 times [2020-04-18 19:34:49,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:34:49,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489712727] [2020-04-18 19:34:49,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:34:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:34:50,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:34:50,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489712727] [2020-04-18 19:34:50,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:34:50,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:34:50,134 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:34:50,138 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:50,151 INFO L259 McrAutomatonBuilder]: Finished intersection with 69 states and 98 transitions. [2020-04-18 19:34:50,152 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:34:50,268 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 19:34:50,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:34:50,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 19:34:50,269 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 8 states. [2020-04-18 19:34:50,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:50,339 INFO L93 Difference]: Finished difference Result 87 states and 134 transitions. [2020-04-18 19:34:50,339 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 134 transitions. [2020-04-18 19:34:50,340 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:34:50,340 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [988633928] [2020-04-18 19:34:50,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:34:50,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:34:50,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [988633928] [2020-04-18 19:34:50,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 19:34:50,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:34:50,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:34:50,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:34:50,343 INFO L87 Difference]: Start difference. First operand 4693 states and 15602 transitions. Second operand 8 states. [2020-04-18 19:34:50,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:50,712 INFO L93 Difference]: Finished difference Result 6869 states and 22561 transitions. [2020-04-18 19:34:50,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 19:34:50,713 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2020-04-18 19:34:50,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:34:50,752 INFO L225 Difference]: With dead ends: 6869 [2020-04-18 19:34:50,752 INFO L226 Difference]: Without dead ends: 5417 [2020-04-18 19:34:50,753 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2020-04-18 19:34:50,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5417 states. [2020-04-18 19:34:50,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5417 to 4475. [2020-04-18 19:34:50,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4475 states. [2020-04-18 19:34:50,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4475 states to 4475 states and 14788 transitions. [2020-04-18 19:34:50,927 INFO L78 Accepts]: Start accepts. Automaton has 4475 states and 14788 transitions. Word has length 38 [2020-04-18 19:34:50,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:34:50,928 INFO L479 AbstractCegarLoop]: Abstraction has 4475 states and 14788 transitions. [2020-04-18 19:34:50,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 19:34:50,928 INFO L276 IsEmpty]: Start isEmpty. Operand 4475 states and 14788 transitions. [2020-04-18 19:34:50,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:34:50,942 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:34:50,943 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:34:50,944 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:34:50,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:50,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1457479407, now seen corresponding path program 1 times [2020-04-18 19:34:50,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:34:50,948 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [965522122] [2020-04-18 19:34:50,950 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:50,955 INFO L259 McrAutomatonBuilder]: Finished intersection with 180 states and 383 transitions. [2020-04-18 19:34:50,959 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states. [2020-04-18 19:34:50,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:34:50,960 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:34:50,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:50,961 INFO L82 PathProgramCache]: Analyzing trace with hash -703839437, now seen corresponding path program 2 times [2020-04-18 19:34:50,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:34:50,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084292610] [2020-04-18 19:34:50,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:34:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:34:51,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:34:51,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084292610] [2020-04-18 19:34:51,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:34:51,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:34:51,104 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:34:51,108 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:51,122 INFO L259 McrAutomatonBuilder]: Finished intersection with 132 states and 263 transitions. [2020-04-18 19:34:51,122 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:34:51,237 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 13 times. [2020-04-18 19:34:51,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:34:51,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:34:51,238 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 9 states. [2020-04-18 19:34:51,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:51,330 INFO L93 Difference]: Finished difference Result 180 states and 383 transitions. [2020-04-18 19:34:51,330 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 383 transitions. [2020-04-18 19:34:51,330 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:34:51,331 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [965522122] [2020-04-18 19:34:51,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:34:51,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:34:51,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [965522122] [2020-04-18 19:34:51,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 19:34:51,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:34:51,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:34:51,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-04-18 19:34:51,333 INFO L87 Difference]: Start difference. First operand 4475 states and 14788 transitions. Second operand 9 states. [2020-04-18 19:34:51,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:51,777 INFO L93 Difference]: Finished difference Result 7860 states and 25680 transitions. [2020-04-18 19:34:51,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 19:34:51,778 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 39 [2020-04-18 19:34:51,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:34:51,835 INFO L225 Difference]: With dead ends: 7860 [2020-04-18 19:34:51,835 INFO L226 Difference]: Without dead ends: 6292 [2020-04-18 19:34:51,836 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2020-04-18 19:34:51,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6292 states. [2020-04-18 19:34:51,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6292 to 4467. [2020-04-18 19:34:51,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4467 states. [2020-04-18 19:34:52,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4467 states to 4467 states and 14758 transitions. [2020-04-18 19:34:52,004 INFO L78 Accepts]: Start accepts. Automaton has 4467 states and 14758 transitions. Word has length 39 [2020-04-18 19:34:52,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:34:52,004 INFO L479 AbstractCegarLoop]: Abstraction has 4467 states and 14758 transitions. [2020-04-18 19:34:52,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 19:34:52,005 INFO L276 IsEmpty]: Start isEmpty. Operand 4467 states and 14758 transitions. [2020-04-18 19:34:52,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:34:52,017 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:34:52,017 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:34:52,017 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:34:52,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:52,020 INFO L82 PathProgramCache]: Analyzing trace with hash -900130073, now seen corresponding path program 1 times [2020-04-18 19:34:52,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:34:52,021 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1627609346] [2020-04-18 19:34:52,029 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:52,034 INFO L259 McrAutomatonBuilder]: Finished intersection with 231 states and 516 transitions. [2020-04-18 19:34:52,036 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states. [2020-04-18 19:34:52,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:34:52,037 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:34:52,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:52,037 INFO L82 PathProgramCache]: Analyzing trace with hash -900130073, now seen corresponding path program 2 times [2020-04-18 19:34:52,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:34:52,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657681169] [2020-04-18 19:34:52,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:34:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:34:52,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:34:52,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657681169] [2020-04-18 19:34:52,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:34:52,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:34:52,196 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:34:52,199 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:52,216 INFO L259 McrAutomatonBuilder]: Finished intersection with 165 states and 348 transitions. [2020-04-18 19:34:52,216 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:34:52,246 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:34:52,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:34:52,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:34:52,246 INFO L87 Difference]: Start difference. First operand 231 states. Second operand 6 states. [2020-04-18 19:34:52,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:52,303 INFO L93 Difference]: Finished difference Result 231 states and 516 transitions. [2020-04-18 19:34:52,303 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 516 transitions. [2020-04-18 19:34:52,305 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:34:52,306 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1627609346] [2020-04-18 19:34:52,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:34:52,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:34:52,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1627609346] [2020-04-18 19:34:52,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 19:34:52,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:34:52,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:34:52,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:34:52,308 INFO L87 Difference]: Start difference. First operand 4467 states and 14758 transitions. Second operand 6 states. [2020-04-18 19:34:52,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:52,389 INFO L93 Difference]: Finished difference Result 4787 states and 15714 transitions. [2020-04-18 19:34:52,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:34:52,390 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-04-18 19:34:52,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:34:52,407 INFO L225 Difference]: With dead ends: 4787 [2020-04-18 19:34:52,408 INFO L226 Difference]: Without dead ends: 4227 [2020-04-18 19:34:52,410 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:34:52,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4227 states. [2020-04-18 19:34:52,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4227 to 3939. [2020-04-18 19:34:52,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3939 states. [2020-04-18 19:34:52,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3939 states to 3939 states and 12994 transitions. [2020-04-18 19:34:52,587 INFO L78 Accepts]: Start accepts. Automaton has 3939 states and 12994 transitions. Word has length 40 [2020-04-18 19:34:52,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:34:52,589 INFO L479 AbstractCegarLoop]: Abstraction has 3939 states and 12994 transitions. [2020-04-18 19:34:52,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 19:34:52,589 INFO L276 IsEmpty]: Start isEmpty. Operand 3939 states and 12994 transitions. [2020-04-18 19:34:52,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:34:52,599 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:34:52,600 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:34:52,600 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:34:52,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:52,600 INFO L82 PathProgramCache]: Analyzing trace with hash -246998388, now seen corresponding path program 1 times [2020-04-18 19:34:52,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:34:52,601 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [762614131] [2020-04-18 19:34:52,603 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:52,611 INFO L259 McrAutomatonBuilder]: Finished intersection with 414 states and 1145 transitions. [2020-04-18 19:34:52,613 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states. [2020-04-18 19:34:52,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:34:52,615 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:34:52,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:52,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1554306252, now seen corresponding path program 2 times [2020-04-18 19:34:52,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:34:52,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403861664] [2020-04-18 19:34:52,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:34:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:34:52,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:34:52,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403861664] [2020-04-18 19:34:52,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:34:52,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:34:52,735 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:34:52,738 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:52,768 INFO L259 McrAutomatonBuilder]: Finished intersection with 216 states and 517 transitions. [2020-04-18 19:34:52,768 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:34:52,833 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 15 times. [2020-04-18 19:34:52,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:34:52,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-04-18 19:34:52,834 INFO L87 Difference]: Start difference. First operand 414 states. Second operand 8 states. [2020-04-18 19:34:52,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:52,996 INFO L93 Difference]: Finished difference Result 519 states and 1344 transitions. [2020-04-18 19:34:52,997 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 1344 transitions. [2020-04-18 19:34:52,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:34:52,999 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:34:52,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:52,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1027819708, now seen corresponding path program 3 times [2020-04-18 19:34:52,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:34:53,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748984548] [2020-04-18 19:34:53,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:34:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:34:53,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:34:53,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748984548] [2020-04-18 19:34:53,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:34:53,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:34:53,125 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:34:53,130 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:53,162 INFO L259 McrAutomatonBuilder]: Finished intersection with 195 states and 455 transitions. [2020-04-18 19:34:53,162 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:34:53,228 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 19 times. [2020-04-18 19:34:53,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:34:53,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2020-04-18 19:34:53,229 INFO L87 Difference]: Start difference. First operand 519 states and 1344 transitions. Second operand 8 states. [2020-04-18 19:34:53,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:53,484 INFO L93 Difference]: Finished difference Result 537 states and 1371 transitions. [2020-04-18 19:34:53,484 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1371 transitions. [2020-04-18 19:34:53,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:34:53,486 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [762614131] [2020-04-18 19:34:53,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:34:53,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:34:53,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [762614131] [2020-04-18 19:34:53,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 19:34:53,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:34:53,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 19:34:53,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=465, Unknown=0, NotChecked=0, Total=650 [2020-04-18 19:34:53,489 INFO L87 Difference]: Start difference. First operand 3939 states and 12994 transitions. Second operand 11 states. [2020-04-18 19:34:53,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:53,737 INFO L93 Difference]: Finished difference Result 7037 states and 22771 transitions. [2020-04-18 19:34:53,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-04-18 19:34:53,738 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2020-04-18 19:34:53,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:34:53,754 INFO L225 Difference]: With dead ends: 7037 [2020-04-18 19:34:53,754 INFO L226 Difference]: Without dead ends: 4904 [2020-04-18 19:34:53,755 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2020-04-18 19:34:53,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4904 states. [2020-04-18 19:34:53,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4904 to 3656. [2020-04-18 19:34:53,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3656 states. [2020-04-18 19:34:53,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 11936 transitions. [2020-04-18 19:34:53,919 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 11936 transitions. Word has length 41 [2020-04-18 19:34:53,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:34:53,920 INFO L479 AbstractCegarLoop]: Abstraction has 3656 states and 11936 transitions. [2020-04-18 19:34:53,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 19:34:53,920 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 11936 transitions. [2020-04-18 19:34:53,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:34:53,927 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:34:53,927 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:34:53,928 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:34:53,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:53,928 INFO L82 PathProgramCache]: Analyzing trace with hash 2076386273, now seen corresponding path program 1 times [2020-04-18 19:34:53,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:34:53,928 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [989130172] [2020-04-18 19:34:53,930 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:53,934 INFO L259 McrAutomatonBuilder]: Finished intersection with 243 states and 551 transitions. [2020-04-18 19:34:53,936 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states. [2020-04-18 19:34:53,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:34:53,937 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:34:53,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:53,937 INFO L82 PathProgramCache]: Analyzing trace with hash -78306353, now seen corresponding path program 2 times [2020-04-18 19:34:53,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:34:53,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061338223] [2020-04-18 19:34:53,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:34:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:34:54,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:34:54,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061338223] [2020-04-18 19:34:54,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:34:54,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:34:54,023 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:34:54,027 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:54,038 INFO L259 McrAutomatonBuilder]: Finished intersection with 111 states and 197 transitions. [2020-04-18 19:34:54,039 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:34:54,073 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 19:34:54,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:34:54,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:34:54,074 INFO L87 Difference]: Start difference. First operand 243 states. Second operand 6 states. [2020-04-18 19:34:54,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:54,224 INFO L93 Difference]: Finished difference Result 337 states and 739 transitions. [2020-04-18 19:34:54,224 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 739 transitions. [2020-04-18 19:34:54,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:34:54,225 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:34:54,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:54,225 INFO L82 PathProgramCache]: Analyzing trace with hash 263203685, now seen corresponding path program 3 times [2020-04-18 19:34:54,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:34:54,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474334549] [2020-04-18 19:34:54,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:34:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:34:54,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:34:54,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474334549] [2020-04-18 19:34:54,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:34:54,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:34:54,357 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:34:54,361 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:54,373 INFO L259 McrAutomatonBuilder]: Finished intersection with 110 states and 195 transitions. [2020-04-18 19:34:54,373 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:34:54,397 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 7 times. [2020-04-18 19:34:54,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:34:54,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-04-18 19:34:54,398 INFO L87 Difference]: Start difference. First operand 337 states and 739 transitions. Second operand 7 states. [2020-04-18 19:34:54,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:54,482 INFO L93 Difference]: Finished difference Result 343 states and 744 transitions. [2020-04-18 19:34:54,483 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 744 transitions. [2020-04-18 19:34:54,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:34:54,484 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 19:34:54,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:54,484 INFO L82 PathProgramCache]: Analyzing trace with hash 51398341, now seen corresponding path program 4 times [2020-04-18 19:34:54,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:34:54,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279660548] [2020-04-18 19:34:54,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:34:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:34:54,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:34:54,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279660548] [2020-04-18 19:34:54,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:34:54,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:34:54,627 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:34:54,631 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:54,643 INFO L259 McrAutomatonBuilder]: Finished intersection with 107 states and 189 transitions. [2020-04-18 19:34:54,643 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:34:54,701 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 19:34:54,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:34:54,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-04-18 19:34:54,701 INFO L87 Difference]: Start difference. First operand 343 states and 744 transitions. Second operand 9 states. [2020-04-18 19:34:55,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:55,065 INFO L93 Difference]: Finished difference Result 417 states and 847 transitions. [2020-04-18 19:34:55,065 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 847 transitions. [2020-04-18 19:34:55,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:34:55,067 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 19:34:55,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:55,067 INFO L82 PathProgramCache]: Analyzing trace with hash 2076386273, now seen corresponding path program 5 times [2020-04-18 19:34:55,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:34:55,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326341691] [2020-04-18 19:34:55,068 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:34:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:34:55,556 WARN L192 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2020-04-18 19:34:55,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:34:55,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326341691] [2020-04-18 19:34:55,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:34:55,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:34:55,584 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:34:55,587 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:55,597 INFO L259 McrAutomatonBuilder]: Finished intersection with 117 states and 221 transitions. [2020-04-18 19:34:55,598 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:34:55,642 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 19:34:55,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:34:55,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=662, Unknown=0, NotChecked=0, Total=870 [2020-04-18 19:34:55,643 INFO L87 Difference]: Start difference. First operand 417 states and 847 transitions. Second operand 8 states. [2020-04-18 19:34:55,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:55,886 INFO L93 Difference]: Finished difference Result 459 states and 908 transitions. [2020-04-18 19:34:55,886 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 908 transitions. [2020-04-18 19:34:55,887 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:34:55,888 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [989130172] [2020-04-18 19:34:55,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:34:55,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 19:34:55,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [989130172] [2020-04-18 19:34:55,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-04-18 19:34:55,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:34:55,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-18 19:34:55,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=1047, Unknown=0, NotChecked=0, Total=1332 [2020-04-18 19:34:55,889 INFO L87 Difference]: Start difference. First operand 3656 states and 11936 transitions. Second operand 12 states. [2020-04-18 19:34:56,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:56,077 INFO L93 Difference]: Finished difference Result 4716 states and 15155 transitions. [2020-04-18 19:34:56,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 19:34:56,077 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2020-04-18 19:34:56,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:34:56,085 INFO L225 Difference]: With dead ends: 4716 [2020-04-18 19:34:56,085 INFO L226 Difference]: Without dead ends: 2249 [2020-04-18 19:34:56,086 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=313, Invalid=1327, Unknown=0, NotChecked=0, Total=1640 [2020-04-18 19:34:56,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2249 states. [2020-04-18 19:34:56,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2249 to 2057. [2020-04-18 19:34:56,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2057 states. [2020-04-18 19:34:56,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 6375 transitions. [2020-04-18 19:34:56,139 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 6375 transitions. Word has length 41 [2020-04-18 19:34:56,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:34:56,139 INFO L479 AbstractCegarLoop]: Abstraction has 2057 states and 6375 transitions. [2020-04-18 19:34:56,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-04-18 19:34:56,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 6375 transitions. [2020-04-18 19:34:56,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 19:34:56,143 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:34:56,144 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:34:56,144 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:34:56,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:56,144 INFO L82 PathProgramCache]: Analyzing trace with hash 96261440, now seen corresponding path program 1 times [2020-04-18 19:34:56,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:34:56,145 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [220159439] [2020-04-18 19:34:56,146 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:56,156 INFO L259 McrAutomatonBuilder]: Finished intersection with 543 states and 1558 transitions. [2020-04-18 19:34:56,160 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states. [2020-04-18 19:34:56,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 19:34:56,162 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:34:56,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:56,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1211046424, now seen corresponding path program 2 times [2020-04-18 19:34:56,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:34:56,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299201720] [2020-04-18 19:34:56,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:34:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:34:56,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:34:56,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299201720] [2020-04-18 19:34:56,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:34:56,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:34:56,234 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:34:56,239 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:56,274 INFO L259 McrAutomatonBuilder]: Finished intersection with 270 states and 676 transitions. [2020-04-18 19:34:56,274 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:34:56,310 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 24 times. [2020-04-18 19:34:56,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:34:56,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:34:56,311 INFO L87 Difference]: Start difference. First operand 543 states. Second operand 6 states. [2020-04-18 19:34:56,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:56,354 INFO L93 Difference]: Finished difference Result 543 states and 1558 transitions. [2020-04-18 19:34:56,355 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 1558 transitions. [2020-04-18 19:34:56,356 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:34:56,356 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [220159439] [2020-04-18 19:34:56,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:34:56,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:34:56,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [220159439] [2020-04-18 19:34:56,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 19:34:56,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:34:56,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:34:56,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:34:56,358 INFO L87 Difference]: Start difference. First operand 2057 states and 6375 transitions. Second operand 6 states. [2020-04-18 19:34:56,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:56,438 INFO L93 Difference]: Finished difference Result 2534 states and 7733 transitions. [2020-04-18 19:34:56,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:34:56,439 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-04-18 19:34:56,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:34:56,445 INFO L225 Difference]: With dead ends: 2534 [2020-04-18 19:34:56,445 INFO L226 Difference]: Without dead ends: 1838 [2020-04-18 19:34:56,446 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:34:56,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2020-04-18 19:34:56,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1838. [2020-04-18 19:34:56,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2020-04-18 19:34:56,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 5580 transitions. [2020-04-18 19:34:56,491 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 5580 transitions. Word has length 42 [2020-04-18 19:34:56,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:34:56,491 INFO L479 AbstractCegarLoop]: Abstraction has 1838 states and 5580 transitions. [2020-04-18 19:34:56,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 19:34:56,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 5580 transitions. [2020-04-18 19:34:56,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 19:34:56,495 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:34:56,495 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:34:56,496 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:34:56,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:56,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1641822891, now seen corresponding path program 1 times [2020-04-18 19:34:56,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:34:56,496 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [878753576] [2020-04-18 19:34:56,498 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:56,512 INFO L259 McrAutomatonBuilder]: Finished intersection with 672 states and 1971 transitions. [2020-04-18 19:34:56,517 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states. [2020-04-18 19:34:56,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 19:34:56,519 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:34:56,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:56,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1007181547, now seen corresponding path program 2 times [2020-04-18 19:34:56,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:34:56,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268812433] [2020-04-18 19:34:56,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:34:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:34:56,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:34:56,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268812433] [2020-04-18 19:34:56,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:34:56,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:34:56,598 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:34:56,602 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:56,634 INFO L259 McrAutomatonBuilder]: Finished intersection with 210 states and 474 transitions. [2020-04-18 19:34:56,634 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:34:56,697 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 23 times. [2020-04-18 19:34:56,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:34:56,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 19:34:56,698 INFO L87 Difference]: Start difference. First operand 672 states. Second operand 8 states. [2020-04-18 19:34:56,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:56,799 INFO L93 Difference]: Finished difference Result 672 states and 1971 transitions. [2020-04-18 19:34:56,799 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1971 transitions. [2020-04-18 19:34:56,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:34:56,801 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [878753576] [2020-04-18 19:34:56,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:34:56,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:34:56,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [878753576] [2020-04-18 19:34:56,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 19:34:56,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:34:56,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:34:56,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-04-18 19:34:56,802 INFO L87 Difference]: Start difference. First operand 1838 states and 5580 transitions. Second operand 8 states. [2020-04-18 19:34:56,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:56,929 INFO L93 Difference]: Finished difference Result 1775 states and 5214 transitions. [2020-04-18 19:34:56,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 19:34:56,930 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-04-18 19:34:56,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:34:56,953 INFO L225 Difference]: With dead ends: 1775 [2020-04-18 19:34:56,953 INFO L226 Difference]: Without dead ends: 1227 [2020-04-18 19:34:56,954 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2020-04-18 19:34:56,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2020-04-18 19:34:56,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1227. [2020-04-18 19:34:56,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1227 states. [2020-04-18 19:34:56,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 3514 transitions. [2020-04-18 19:34:56,981 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 3514 transitions. Word has length 43 [2020-04-18 19:34:56,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:34:56,981 INFO L479 AbstractCegarLoop]: Abstraction has 1227 states and 3514 transitions. [2020-04-18 19:34:56,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 19:34:56,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 3514 transitions. [2020-04-18 19:34:56,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 19:34:56,984 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:34:56,984 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:34:56,985 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:34:56,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:56,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1594703724, now seen corresponding path program 1 times [2020-04-18 19:34:56,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:34:56,985 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1413516905] [2020-04-18 19:34:56,987 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:57,014 INFO L259 McrAutomatonBuilder]: Finished intersection with 1110 states and 3421 transitions. [2020-04-18 19:34:57,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states. [2020-04-18 19:34:57,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 19:34:57,027 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:34:57,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:34:57,028 INFO L82 PathProgramCache]: Analyzing trace with hash 287395860, now seen corresponding path program 2 times [2020-04-18 19:34:57,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:34:57,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498990702] [2020-04-18 19:34:57,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:34:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:34:57,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:34:57,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498990702] [2020-04-18 19:34:57,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:34:57,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:34:57,141 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:34:57,145 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:34:57,171 INFO L259 McrAutomatonBuilder]: Finished intersection with 182 states and 375 transitions. [2020-04-18 19:34:57,171 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:34:57,251 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 9 times. [2020-04-18 19:34:57,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:34:57,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:34:57,254 INFO L87 Difference]: Start difference. First operand 1110 states. Second operand 9 states. [2020-04-18 19:34:57,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:57,477 INFO L93 Difference]: Finished difference Result 1110 states and 3421 transitions. [2020-04-18 19:34:57,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 3421 transitions. [2020-04-18 19:34:57,480 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:34:57,480 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1413516905] [2020-04-18 19:34:57,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:34:57,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 19:34:57,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1413516905] [2020-04-18 19:34:57,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 19:34:57,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:34:57,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:34:57,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=195, Unknown=0, NotChecked=0, Total=306 [2020-04-18 19:34:57,482 INFO L87 Difference]: Start difference. First operand 1227 states and 3514 transitions. Second operand 9 states. [2020-04-18 19:34:57,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:34:57,524 INFO L93 Difference]: Finished difference Result 795 states and 2191 transitions. [2020-04-18 19:34:57,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 19:34:57,525 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2020-04-18 19:34:57,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:34:57,525 INFO L225 Difference]: With dead ends: 795 [2020-04-18 19:34:57,525 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 19:34:57,526 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=195, Unknown=0, NotChecked=0, Total=306 [2020-04-18 19:34:57,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 19:34:57,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 19:34:57,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 19:34:57,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 19:34:57,527 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-04-18 19:34:57,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:34:57,527 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 19:34:57,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 19:34:57,527 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 19:34:57,527 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:34:57,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:34:57 BasicIcfg [2020-04-18 19:34:57,533 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 19:34:57,534 INFO L168 Benchmark]: Toolchain (without parser) took 11478.21 ms. Allocated memory was 146.3 MB in the beginning and 558.9 MB in the end (delta: 412.6 MB). Free memory was 102.7 MB in the beginning and 358.3 MB in the end (delta: -255.7 MB). Peak memory consumption was 156.9 MB. Max. memory is 7.1 GB. [2020-04-18 19:34:57,535 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 19:34:57,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.36 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 100.8 MB in the beginning and 159.7 MB in the end (delta: -59.0 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-04-18 19:34:57,537 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.83 ms. Allocated memory is still 202.9 MB. Free memory was 159.7 MB in the beginning and 157.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 19:34:57,537 INFO L168 Benchmark]: Boogie Preprocessor took 29.53 ms. Allocated memory is still 202.9 MB. Free memory was 157.7 MB in the beginning and 156.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 19:34:57,538 INFO L168 Benchmark]: RCFGBuilder took 458.92 ms. Allocated memory is still 202.9 MB. Free memory was 155.8 MB in the beginning and 134.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-04-18 19:34:57,538 INFO L168 Benchmark]: TraceAbstraction took 10183.86 ms. Allocated memory was 202.9 MB in the beginning and 558.9 MB in the end (delta: 356.0 MB). Free memory was 133.6 MB in the beginning and 358.3 MB in the end (delta: -224.7 MB). Peak memory consumption was 131.3 MB. Max. memory is 7.1 GB. [2020-04-18 19:34:57,543 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 146.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 723.36 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 100.8 MB in the beginning and 159.7 MB in the end (delta: -59.0 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.83 ms. Allocated memory is still 202.9 MB. Free memory was 159.7 MB in the beginning and 157.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.53 ms. Allocated memory is still 202.9 MB. Free memory was 157.7 MB in the beginning and 156.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 458.92 ms. Allocated memory is still 202.9 MB. Free memory was 155.8 MB in the beginning and 134.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10183.86 ms. Allocated memory was 202.9 MB in the beginning and 558.9 MB in the end (delta: 356.0 MB). Free memory was 133.6 MB in the beginning and 358.3 MB in the end (delta: -224.7 MB). Peak memory consumption was 131.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.0s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 882 SDtfs, 1688 SDslu, 3507 SDs, 0 SdLazy, 550 SolverSat, 101 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 847 GetRequests, 691 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 763 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8471occurred 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: 1.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 5503 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...