/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/safe011_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 19:28:00,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 19:28:00,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 19:28:00,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 19:28:00,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 19:28:00,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 19:28:00,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 19:28:00,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 19:28:00,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 19:28:00,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 19:28:00,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 19:28:00,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 19:28:00,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 19:28:00,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 19:28:00,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 19:28:00,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 19:28:00,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 19:28:00,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 19:28:00,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 19:28:00,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 19:28:00,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 19:28:00,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 19:28:00,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 19:28:00,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 19:28:00,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 19:28:00,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 19:28:00,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 19:28:00,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 19:28:00,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 19:28:00,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 19:28:00,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 19:28:00,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 19:28:00,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 19:28:00,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 19:28:00,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 19:28:00,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 19:28:00,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 19:28:00,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 19:28:00,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 19:28:00,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 19:28:00,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 19:28:00,672 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 19:28:00,686 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 19:28:00,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 19:28:00,687 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 19:28:00,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 19:28:00,688 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 19:28:00,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 19:28:00,688 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 19:28:00,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 19:28:00,689 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 19:28:00,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 19:28:00,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 19:28:00,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 19:28:00,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 19:28:00,690 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 19:28:00,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 19:28:00,690 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 19:28:00,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 19:28:00,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 19:28:00,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 19:28:00,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 19:28:00,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 19:28:00,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 19:28:00,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 19:28:00,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 19:28:00,692 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 19:28:00,692 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 19:28:00,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 19:28:00,693 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 19:28:00,693 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 19:28:00,693 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 19:28:00,693 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 19:28:00,977 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 19:28:00,993 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 19:28:00,996 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 19:28:00,998 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 19:28:00,998 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 19:28:00,999 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2020-04-18 19:28:01,070 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb3065025/5c4324fd94204892bc363bc951f69759/FLAG5f9a968af [2020-04-18 19:28:01,648 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 19:28:01,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2020-04-18 19:28:01,673 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb3065025/5c4324fd94204892bc363bc951f69759/FLAG5f9a968af [2020-04-18 19:28:01,949 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb3065025/5c4324fd94204892bc363bc951f69759 [2020-04-18 19:28:01,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 19:28:01,975 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 19:28:01,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 19:28:01,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 19:28:01,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 19:28:01,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:28:01" (1/1) ... [2020-04-18 19:28:01,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30593eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:28:01, skipping insertion in model container [2020-04-18 19:28:01,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:28:01" (1/1) ... [2020-04-18 19:28:01,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 19:28:02,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 19:28:02,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:28:02,545 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 19:28:02,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:28:02,687 INFO L208 MainTranslator]: Completed translation [2020-04-18 19:28:02,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:28:02 WrapperNode [2020-04-18 19:28:02,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 19:28:02,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 19:28:02,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 19:28:02,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 19:28:02,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:28:02" (1/1) ... [2020-04-18 19:28:02,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:28:02" (1/1) ... [2020-04-18 19:28:02,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 19:28:02,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 19:28:02,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 19:28:02,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 19:28:02,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:28:02" (1/1) ... [2020-04-18 19:28:02,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:28:02" (1/1) ... [2020-04-18 19:28:02,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:28:02" (1/1) ... [2020-04-18 19:28:02,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:28:02" (1/1) ... [2020-04-18 19:28:02,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:28:02" (1/1) ... [2020-04-18 19:28:02,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:28:02" (1/1) ... [2020-04-18 19:28:02,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:28:02" (1/1) ... [2020-04-18 19:28:02,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 19:28:02,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 19:28:02,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 19:28:02,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 19:28:02,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:28:02" (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 19:28:02,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 19:28:02,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 19:28:02,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 19:28:02,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 19:28:02,847 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 19:28:02,848 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 19:28:02,848 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 19:28:02,848 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 19:28:02,848 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 19:28:02,848 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 19:28:02,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 19:28:02,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 19:28:02,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 19:28:02,851 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 19:28:03,239 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 19:28:03,239 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 19:28:03,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:28:03 BoogieIcfgContainer [2020-04-18 19:28:03,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 19:28:03,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 19:28:03,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 19:28:03,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 19:28:03,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:28:01" (1/3) ... [2020-04-18 19:28:03,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e445984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:28:03, skipping insertion in model container [2020-04-18 19:28:03,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:28:02" (2/3) ... [2020-04-18 19:28:03,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e445984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:28:03, skipping insertion in model container [2020-04-18 19:28:03,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:28:03" (3/3) ... [2020-04-18 19:28:03,254 INFO L109 eAbstractionObserver]: Analyzing ICFG safe011_tso.opt.i [2020-04-18 19:28:03,265 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 19:28:03,265 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 19:28:03,272 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 19:28:03,273 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 19:28:03,300 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,300 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,301 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,303 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,304 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,304 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,305 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,309 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,309 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,309 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,310 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,310 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,311 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,311 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,312 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,312 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,312 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,312 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,319 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,320 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,320 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,321 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,334 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,335 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,335 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,336 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,341 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,341 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,341 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,342 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:28:03,360 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 19:28:03,377 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 19:28:03,377 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 19:28:03,378 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 19:28:03,378 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 19:28:03,378 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 19:28:03,378 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 19:28:03,378 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 19:28:03,379 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 19:28:03,392 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 69 transitions, 153 flow [2020-04-18 19:28:03,872 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 8471 states. [2020-04-18 19:28:03,876 INFO L276 IsEmpty]: Start isEmpty. Operand 8471 states. [2020-04-18 19:28:03,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 19:28:03,913 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:28:03,915 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 19:28:03,915 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:28:03,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:28:03,922 INFO L82 PathProgramCache]: Analyzing trace with hash 853459722, now seen corresponding path program 1 times [2020-04-18 19:28:03,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:28:03,930 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [471967441] [2020-04-18 19:28:03,947 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:28:03,964 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 35 transitions. [2020-04-18 19:28:03,967 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-04-18 19:28:03,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 19:28:03,968 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:28:03,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:28:03,969 INFO L82 PathProgramCache]: Analyzing trace with hash 853459722, now seen corresponding path program 2 times [2020-04-18 19:28:03,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:28:03,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487551330] [2020-04-18 19:28:03,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:28:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:28:04,473 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 19:28:04,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487551330] [2020-04-18 19:28:04,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:28:04,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:28:04,476 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:28:04,481 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:28:04,488 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 35 transitions. [2020-04-18 19:28:04,489 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:28:04,553 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:28:04,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:28:04,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:28:04,560 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 7 states. [2020-04-18 19:28:04,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:28:04,648 INFO L93 Difference]: Finished difference Result 36 states and 35 transitions. [2020-04-18 19:28:04,649 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 35 transitions. [2020-04-18 19:28:04,649 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:28:04,650 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [471967441] [2020-04-18 19:28:04,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:28:04,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:28:04,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [471967441] [2020-04-18 19:28:04,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:28:04,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:28:04,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:28:04,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 19:28:04,660 INFO L87 Difference]: Start difference. First operand 8471 states. Second operand 7 states. [2020-04-18 19:28:05,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:28:05,240 INFO L93 Difference]: Finished difference Result 20201 states and 69645 transitions. [2020-04-18 19:28:05,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 19:28:05,243 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-04-18 19:28:05,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:28:05,324 INFO L225 Difference]: With dead ends: 20201 [2020-04-18 19:28:05,325 INFO L226 Difference]: Without dead ends: 6246 [2020-04-18 19:28:05,331 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 19:28:05,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6246 states. [2020-04-18 19:28:05,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6246 to 5046. [2020-04-18 19:28:05,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5046 states. [2020-04-18 19:28:05,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5046 states to 5046 states and 16781 transitions. [2020-04-18 19:28:05,756 INFO L78 Accepts]: Start accepts. Automaton has 5046 states and 16781 transitions. Word has length 35 [2020-04-18 19:28:05,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:28:05,759 INFO L479 AbstractCegarLoop]: Abstraction has 5046 states and 16781 transitions. [2020-04-18 19:28:05,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:28:05,762 INFO L276 IsEmpty]: Start isEmpty. Operand 5046 states and 16781 transitions. [2020-04-18 19:28:05,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 19:28:05,775 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:28:05,782 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] [2020-04-18 19:28:05,783 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:28:05,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:28:05,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1951461621, now seen corresponding path program 1 times [2020-04-18 19:28:05,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:28:05,784 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [172827252] [2020-04-18 19:28:05,786 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:28:05,789 INFO L259 McrAutomatonBuilder]: Finished intersection with 70 states and 101 transitions. [2020-04-18 19:28:05,791 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2020-04-18 19:28:05,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 19:28:05,795 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:28:05,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:28:05,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1951461621, now seen corresponding path program 2 times [2020-04-18 19:28:05,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:28:05,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895144266] [2020-04-18 19:28:05,796 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:28:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:28:05,961 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 19:28:05,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895144266] [2020-04-18 19:28:05,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:28:05,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:28:05,963 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:28:05,966 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:28:05,977 INFO L259 McrAutomatonBuilder]: Finished intersection with 58 states and 77 transitions. [2020-04-18 19:28:05,977 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:28:06,028 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:28:06,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:28:06,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:28:06,029 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 7 states. [2020-04-18 19:28:06,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:28:06,089 INFO L93 Difference]: Finished difference Result 70 states and 101 transitions. [2020-04-18 19:28:06,090 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 101 transitions. [2020-04-18 19:28:06,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:28:06,090 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [172827252] [2020-04-18 19:28:06,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:28:06,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:28:06,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [172827252] [2020-04-18 19:28:06,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:28:06,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:28:06,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:28:06,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 19:28:06,094 INFO L87 Difference]: Start difference. First operand 5046 states and 16781 transitions. Second operand 7 states. [2020-04-18 19:28:06,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:28:06,367 INFO L93 Difference]: Finished difference Result 6782 states and 22372 transitions. [2020-04-18 19:28:06,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 19:28:06,368 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2020-04-18 19:28:06,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:28:06,414 INFO L225 Difference]: With dead ends: 6782 [2020-04-18 19:28:06,414 INFO L226 Difference]: Without dead ends: 5642 [2020-04-18 19:28:06,431 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 19:28:06,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5642 states. [2020-04-18 19:28:06,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5642 to 4266. [2020-04-18 19:28:06,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4266 states. [2020-04-18 19:28:06,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4266 states to 4266 states and 14087 transitions. [2020-04-18 19:28:06,701 INFO L78 Accepts]: Start accepts. Automaton has 4266 states and 14087 transitions. Word has length 37 [2020-04-18 19:28:06,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:28:06,702 INFO L479 AbstractCegarLoop]: Abstraction has 4266 states and 14087 transitions. [2020-04-18 19:28:06,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:28:06,703 INFO L276 IsEmpty]: Start isEmpty. Operand 4266 states and 14087 transitions. [2020-04-18 19:28:06,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:28:06,712 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:28:06,713 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 19:28:06,713 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:28:06,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:28:06,715 INFO L82 PathProgramCache]: Analyzing trace with hash -487436374, now seen corresponding path program 1 times [2020-04-18 19:28:06,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:28:06,716 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2057655360] [2020-04-18 19:28:06,717 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:28:06,720 INFO L259 McrAutomatonBuilder]: Finished intersection with 148 states and 303 transitions. [2020-04-18 19:28:06,722 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states. [2020-04-18 19:28:06,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:28:06,723 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:28:06,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:28:06,724 INFO L82 PathProgramCache]: Analyzing trace with hash -487436374, now seen corresponding path program 2 times [2020-04-18 19:28:06,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:28:06,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532029068] [2020-04-18 19:28:06,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:28:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:28:06,932 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 19:28:06,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532029068] [2020-04-18 19:28:06,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:28:06,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:28:06,934 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:28:06,939 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:28:06,950 INFO L259 McrAutomatonBuilder]: Finished intersection with 100 states and 183 transitions. [2020-04-18 19:28:06,950 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:28:07,024 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 19:28:07,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:28:07,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-04-18 19:28:07,025 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 8 states. [2020-04-18 19:28:07,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:28:07,140 INFO L93 Difference]: Finished difference Result 148 states and 303 transitions. [2020-04-18 19:28:07,140 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 303 transitions. [2020-04-18 19:28:07,141 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:28:07,141 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2057655360] [2020-04-18 19:28:07,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:28:07,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:28:07,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2057655360] [2020-04-18 19:28:07,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 19:28:07,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:28:07,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:28:07,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 19:28:07,143 INFO L87 Difference]: Start difference. First operand 4266 states and 14087 transitions. Second operand 8 states. [2020-04-18 19:28:07,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:28:07,655 INFO L93 Difference]: Finished difference Result 8167 states and 26428 transitions. [2020-04-18 19:28:07,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-04-18 19:28:07,656 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2020-04-18 19:28:07,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:28:07,709 INFO L225 Difference]: With dead ends: 8167 [2020-04-18 19:28:07,710 INFO L226 Difference]: Without dead ends: 5526 [2020-04-18 19:28:08,239 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702 [2020-04-18 19:28:08,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5526 states. [2020-04-18 19:28:08,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5526 to 3686. [2020-04-18 19:28:08,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3686 states. [2020-04-18 19:28:08,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3686 states to 3686 states and 11878 transitions. [2020-04-18 19:28:08,367 INFO L78 Accepts]: Start accepts. Automaton has 3686 states and 11878 transitions. Word has length 39 [2020-04-18 19:28:08,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:28:08,368 INFO L479 AbstractCegarLoop]: Abstraction has 3686 states and 11878 transitions. [2020-04-18 19:28:08,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 19:28:08,368 INFO L276 IsEmpty]: Start isEmpty. Operand 3686 states and 11878 transitions. [2020-04-18 19:28:08,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:28:08,376 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:28:08,376 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 19:28:08,377 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:28:08,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:28:08,377 INFO L82 PathProgramCache]: Analyzing trace with hash -321354950, now seen corresponding path program 1 times [2020-04-18 19:28:08,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:28:08,378 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1438551166] [2020-04-18 19:28:08,379 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:28:08,383 INFO L259 McrAutomatonBuilder]: Finished intersection with 191 states and 412 transitions. [2020-04-18 19:28:08,384 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states. [2020-04-18 19:28:08,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:28:08,385 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:28:08,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:28:08,385 INFO L82 PathProgramCache]: Analyzing trace with hash -321354950, now seen corresponding path program 2 times [2020-04-18 19:28:08,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:28:08,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76774274] [2020-04-18 19:28:08,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:28:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:28:08,479 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 19:28:08,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76774274] [2020-04-18 19:28:08,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:28:08,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:28:08,481 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:28:08,489 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:28:08,501 INFO L259 McrAutomatonBuilder]: Finished intersection with 104 states and 184 transitions. [2020-04-18 19:28:08,502 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:28:08,530 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:28:08,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:28:08,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:28:08,531 INFO L87 Difference]: Start difference. First operand 191 states. Second operand 6 states. [2020-04-18 19:28:08,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:28:08,583 INFO L93 Difference]: Finished difference Result 191 states and 412 transitions. [2020-04-18 19:28:08,583 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 412 transitions. [2020-04-18 19:28:08,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:28:08,584 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1438551166] [2020-04-18 19:28:08,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:28:08,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:28:08,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1438551166] [2020-04-18 19:28:08,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 19:28:08,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:28:08,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:28:08,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:28:08,588 INFO L87 Difference]: Start difference. First operand 3686 states and 11878 transitions. Second operand 6 states. [2020-04-18 19:28:08,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:28:08,669 INFO L93 Difference]: Finished difference Result 4006 states and 12834 transitions. [2020-04-18 19:28:08,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:28:08,670 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-04-18 19:28:08,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:28:08,684 INFO L225 Difference]: With dead ends: 4006 [2020-04-18 19:28:08,684 INFO L226 Difference]: Without dead ends: 3446 [2020-04-18 19:28:08,685 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 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 19:28:08,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3446 states. [2020-04-18 19:28:08,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3446 to 3390. [2020-04-18 19:28:08,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3390 states. [2020-04-18 19:28:08,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3390 states to 3390 states and 10856 transitions. [2020-04-18 19:28:08,804 INFO L78 Accepts]: Start accepts. Automaton has 3390 states and 10856 transitions. Word has length 40 [2020-04-18 19:28:08,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:28:08,806 INFO L479 AbstractCegarLoop]: Abstraction has 3390 states and 10856 transitions. [2020-04-18 19:28:08,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 19:28:08,807 INFO L276 IsEmpty]: Start isEmpty. Operand 3390 states and 10856 transitions. [2020-04-18 19:28:08,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:28:08,815 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:28:08,816 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 19:28:08,816 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:28:08,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:28:08,816 INFO L82 PathProgramCache]: Analyzing trace with hash 642069299, now seen corresponding path program 1 times [2020-04-18 19:28:08,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:28:08,818 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1407862583] [2020-04-18 19:28:08,820 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:28:08,829 INFO L259 McrAutomatonBuilder]: Finished intersection with 414 states and 1145 transitions. [2020-04-18 19:28:08,832 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states. [2020-04-18 19:28:08,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:28:08,834 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:28:08,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:28:08,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1776565077, now seen corresponding path program 2 times [2020-04-18 19:28:08,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:28:08,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550869346] [2020-04-18 19:28:08,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:28:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:28:08,977 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 19:28:08,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550869346] [2020-04-18 19:28:08,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:28:08,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:28:08,978 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:28:08,982 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:28:09,071 INFO L259 McrAutomatonBuilder]: Finished intersection with 258 states and 665 transitions. [2020-04-18 19:28:09,072 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:28:09,113 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 7 times. [2020-04-18 19:28:09,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:28:09,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:28:09,114 INFO L87 Difference]: Start difference. First operand 414 states. Second operand 7 states. [2020-04-18 19:28:09,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:28:09,192 INFO L93 Difference]: Finished difference Result 414 states and 1145 transitions. [2020-04-18 19:28:09,192 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 1145 transitions. [2020-04-18 19:28:09,193 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:28:09,194 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1407862583] [2020-04-18 19:28:09,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:28:09,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:28:09,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1407862583] [2020-04-18 19:28:09,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:28:09,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:28:09,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:28:09,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:28:09,197 INFO L87 Difference]: Start difference. First operand 3390 states and 10856 transitions. Second operand 7 states. [2020-04-18 19:28:09,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:28:09,304 INFO L93 Difference]: Finished difference Result 4272 states and 13479 transitions. [2020-04-18 19:28:09,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 19:28:09,305 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-04-18 19:28:09,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:28:09,311 INFO L225 Difference]: With dead ends: 4272 [2020-04-18 19:28:09,312 INFO L226 Difference]: Without dead ends: 2057 [2020-04-18 19:28:09,313 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-04-18 19:28:09,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2057 states. [2020-04-18 19:28:09,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2057 to 2057. [2020-04-18 19:28:09,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2057 states. [2020-04-18 19:28:09,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 6375 transitions. [2020-04-18 19:28:09,371 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 6375 transitions. Word has length 41 [2020-04-18 19:28:09,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:28:09,372 INFO L479 AbstractCegarLoop]: Abstraction has 2057 states and 6375 transitions. [2020-04-18 19:28:09,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:28:09,372 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 6375 transitions. [2020-04-18 19:28:09,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 19:28:09,379 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:28:09,379 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 19:28:09,379 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:28:09,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:28:09,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1629639079, now seen corresponding path program 1 times [2020-04-18 19:28:09,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:28:09,380 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1905996913] [2020-04-18 19:28:09,381 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:28:09,394 INFO L259 McrAutomatonBuilder]: Finished intersection with 543 states and 1558 transitions. [2020-04-18 19:28:09,397 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states. [2020-04-18 19:28:09,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 19:28:09,400 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:28:09,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:28:09,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1629639079, now seen corresponding path program 2 times [2020-04-18 19:28:09,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:28:09,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724177804] [2020-04-18 19:28:09,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:28:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:28:09,551 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 19:28:09,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724177804] [2020-04-18 19:28:09,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:28:09,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:28:09,552 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:28:09,557 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:28:09,591 INFO L259 McrAutomatonBuilder]: Finished intersection with 270 states and 676 transitions. [2020-04-18 19:28:09,591 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:28:09,630 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 24 times. [2020-04-18 19:28:09,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:28:09,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:28:09,633 INFO L87 Difference]: Start difference. First operand 543 states. Second operand 6 states. [2020-04-18 19:28:09,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:28:09,675 INFO L93 Difference]: Finished difference Result 543 states and 1558 transitions. [2020-04-18 19:28:09,675 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 1558 transitions. [2020-04-18 19:28:09,676 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:28:09,677 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1905996913] [2020-04-18 19:28:09,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:28:09,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:28:09,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1905996913] [2020-04-18 19:28:09,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 19:28:09,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:28:09,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:28:09,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:28:09,678 INFO L87 Difference]: Start difference. First operand 2057 states and 6375 transitions. Second operand 6 states. [2020-04-18 19:28:09,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:28:09,793 INFO L93 Difference]: Finished difference Result 2534 states and 7733 transitions. [2020-04-18 19:28:09,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:28:09,793 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-04-18 19:28:09,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:28:09,802 INFO L225 Difference]: With dead ends: 2534 [2020-04-18 19:28:09,803 INFO L226 Difference]: Without dead ends: 1838 [2020-04-18 19:28:09,803 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 19:28:09,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2020-04-18 19:28:09,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1838. [2020-04-18 19:28:09,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2020-04-18 19:28:09,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 5580 transitions. [2020-04-18 19:28:09,856 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 5580 transitions. Word has length 42 [2020-04-18 19:28:09,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:28:09,856 INFO L479 AbstractCegarLoop]: Abstraction has 1838 states and 5580 transitions. [2020-04-18 19:28:09,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 19:28:09,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 5580 transitions. [2020-04-18 19:28:09,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 19:28:09,861 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:28:09,861 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 19:28:09,862 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:28:09,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:28:09,862 INFO L82 PathProgramCache]: Analyzing trace with hash 2080594988, now seen corresponding path program 1 times [2020-04-18 19:28:09,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:28:09,863 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1394835346] [2020-04-18 19:28:09,864 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:28:09,874 INFO L259 McrAutomatonBuilder]: Finished intersection with 672 states and 1971 transitions. [2020-04-18 19:28:09,878 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states. [2020-04-18 19:28:09,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 19:28:09,881 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:28:09,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:28:09,882 INFO L82 PathProgramCache]: Analyzing trace with hash 2080594988, now seen corresponding path program 2 times [2020-04-18 19:28:09,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:28:09,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504563361] [2020-04-18 19:28:09,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:28:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:28:09,991 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 19:28:09,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504563361] [2020-04-18 19:28:09,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:28:09,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:28:09,993 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:28:09,996 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:28:10,032 INFO L259 McrAutomatonBuilder]: Finished intersection with 210 states and 474 transitions. [2020-04-18 19:28:10,032 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:28:10,082 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 19:28:10,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:28:10,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:28:10,083 INFO L87 Difference]: Start difference. First operand 672 states. Second operand 7 states. [2020-04-18 19:28:10,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:28:10,279 INFO L93 Difference]: Finished difference Result 672 states and 1971 transitions. [2020-04-18 19:28:10,279 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1971 transitions. [2020-04-18 19:28:10,281 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:28:10,281 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1394835346] [2020-04-18 19:28:10,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:28:10,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:28:10,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1394835346] [2020-04-18 19:28:10,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:28:10,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:28:10,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:28:10,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-04-18 19:28:10,283 INFO L87 Difference]: Start difference. First operand 1838 states and 5580 transitions. Second operand 7 states. [2020-04-18 19:28:10,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:28:10,385 INFO L93 Difference]: Finished difference Result 1775 states and 5214 transitions. [2020-04-18 19:28:10,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 19:28:10,386 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2020-04-18 19:28:10,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:28:10,391 INFO L225 Difference]: With dead ends: 1775 [2020-04-18 19:28:10,391 INFO L226 Difference]: Without dead ends: 1227 [2020-04-18 19:28:10,392 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 19:28:10,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2020-04-18 19:28:10,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1227. [2020-04-18 19:28:10,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1227 states. [2020-04-18 19:28:10,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 3514 transitions. [2020-04-18 19:28:10,419 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 3514 transitions. Word has length 43 [2020-04-18 19:28:10,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:28:10,420 INFO L479 AbstractCegarLoop]: Abstraction has 1227 states and 3514 transitions. [2020-04-18 19:28:10,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:28:10,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 3514 transitions. [2020-04-18 19:28:10,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 19:28:10,422 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:28:10,423 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 19:28:10,423 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:28:10,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:28:10,423 INFO L82 PathProgramCache]: Analyzing trace with hash 935106797, now seen corresponding path program 1 times [2020-04-18 19:28:10,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:28:10,424 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [183853432] [2020-04-18 19:28:10,425 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:28:10,449 INFO L259 McrAutomatonBuilder]: Finished intersection with 1110 states and 3421 transitions. [2020-04-18 19:28:10,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states. [2020-04-18 19:28:10,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 19:28:10,462 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:28:10,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:28:10,463 INFO L82 PathProgramCache]: Analyzing trace with hash 935106797, now seen corresponding path program 2 times [2020-04-18 19:28:10,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:28:10,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924997911] [2020-04-18 19:28:10,463 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:28:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:28:10,591 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 19:28:10,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924997911] [2020-04-18 19:28:10,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:28:10,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:28:10,592 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:28:10,596 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:28:10,629 INFO L259 McrAutomatonBuilder]: Finished intersection with 236 states and 516 transitions. [2020-04-18 19:28:10,629 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:28:10,669 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 19:28:10,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:28:10,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 19:28:10,670 INFO L87 Difference]: Start difference. First operand 1110 states. Second operand 8 states. [2020-04-18 19:28:10,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:28:10,898 INFO L93 Difference]: Finished difference Result 1110 states and 3421 transitions. [2020-04-18 19:28:10,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 3421 transitions. [2020-04-18 19:28:10,901 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:28:10,901 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [183853432] [2020-04-18 19:28:10,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:28:10,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 19:28:10,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [183853432] [2020-04-18 19:28:10,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 19:28:10,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:28:10,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:28:10,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2020-04-18 19:28:10,903 INFO L87 Difference]: Start difference. First operand 1227 states and 3514 transitions. Second operand 8 states. [2020-04-18 19:28:10,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:28:10,941 INFO L93 Difference]: Finished difference Result 795 states and 2191 transitions. [2020-04-18 19:28:10,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 19:28:10,941 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-04-18 19:28:10,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:28:10,942 INFO L225 Difference]: With dead ends: 795 [2020-04-18 19:28:10,942 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 19:28:10,942 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2020-04-18 19:28:10,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 19:28:10,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 19:28:10,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 19:28:10,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 19:28:10,943 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-04-18 19:28:10,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:28:10,944 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 19:28:10,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 19:28:10,944 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 19:28:10,944 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:28:10,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:28:10 BasicIcfg [2020-04-18 19:28:10,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 19:28:10,953 INFO L168 Benchmark]: Toolchain (without parser) took 8992.51 ms. Allocated memory was 137.4 MB in the beginning and 489.2 MB in the end (delta: 351.8 MB). Free memory was 100.4 MB in the beginning and 260.0 MB in the end (delta: -159.6 MB). Peak memory consumption was 192.2 MB. Max. memory is 7.1 GB. [2020-04-18 19:28:10,953 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 19:28:10,954 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.34 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 98.5 MB in the beginning and 155.4 MB in the end (delta: -56.9 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-04-18 19:28:10,955 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.71 ms. Allocated memory is still 200.8 MB. Free memory was 155.4 MB in the beginning and 153.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 19:28:10,956 INFO L168 Benchmark]: Boogie Preprocessor took 28.14 ms. Allocated memory is still 200.8 MB. Free memory was 153.3 MB in the beginning and 151.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 19:28:10,956 INFO L168 Benchmark]: RCFGBuilder took 463.79 ms. Allocated memory is still 200.8 MB. Free memory was 151.9 MB in the beginning and 129.6 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-04-18 19:28:10,957 INFO L168 Benchmark]: TraceAbstraction took 7704.80 ms. Allocated memory was 200.8 MB in the beginning and 489.2 MB in the end (delta: 288.4 MB). Free memory was 129.0 MB in the beginning and 260.0 MB in the end (delta: -131.0 MB). Peak memory consumption was 157.3 MB. Max. memory is 7.1 GB. [2020-04-18 19:28:10,961 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 712.34 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 98.5 MB in the beginning and 155.4 MB in the end (delta: -56.9 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 62.71 ms. Allocated memory is still 200.8 MB. Free memory was 155.4 MB in the beginning and 153.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.14 ms. Allocated memory is still 200.8 MB. Free memory was 153.3 MB in the beginning and 151.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 463.79 ms. Allocated memory is still 200.8 MB. Free memory was 151.9 MB in the beginning and 129.6 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7704.80 ms. Allocated memory was 200.8 MB in the beginning and 489.2 MB in the end (delta: 288.4 MB). Free memory was 129.0 MB in the beginning and 260.0 MB in the end (delta: -131.0 MB). Peak memory consumption was 157.3 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: 7.5s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 733 SDtfs, 1293 SDslu, 2570 SDs, 0 SdLazy, 337 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 466 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 1.6s 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: 1.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 4472 StatesRemovedByMinimization, 4 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...