/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 23:04:02,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 23:04:02,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 23:04:02,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 23:04:02,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 23:04:02,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 23:04:02,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 23:04:02,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 23:04:02,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 23:04:02,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 23:04:02,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 23:04:02,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 23:04:02,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 23:04:02,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 23:04:02,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 23:04:02,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 23:04:02,742 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 23:04:02,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 23:04:02,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 23:04:02,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 23:04:02,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 23:04:02,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 23:04:02,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 23:04:02,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 23:04:02,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 23:04:02,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 23:04:02,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 23:04:02,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 23:04:02,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 23:04:02,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 23:04:02,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 23:04:02,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 23:04:02,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 23:04:02,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 23:04:02,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 23:04:02,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 23:04:02,775 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-21 23:04:02,812 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 23:04:02,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 23:04:02,815 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 23:04:02,815 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 23:04:02,815 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 23:04:02,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 23:04:02,816 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 23:04:02,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 23:04:02,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 23:04:02,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 23:04:02,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 23:04:02,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 23:04:02,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 23:04:02,818 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 23:04:02,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 23:04:02,818 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 23:04:02,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 23:04:02,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 23:04:02,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 23:04:02,819 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 23:04:02,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 23:04:02,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:04:02,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 23:04:02,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 23:04:02,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 23:04:02,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 23:04:02,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 23:04:02,821 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 23:04:02,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 23:04:03,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 23:04:03,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 23:04:03,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 23:04:03,170 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 23:04:03,170 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 23:04:03,172 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2020-10-21 23:04:03,246 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f081c4610/bb48048cf21343eb9ea96096f2b5881d/FLAG868866835 [2020-10-21 23:04:03,736 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 23:04:03,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2020-10-21 23:04:03,759 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f081c4610/bb48048cf21343eb9ea96096f2b5881d/FLAG868866835 [2020-10-21 23:04:04,049 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f081c4610/bb48048cf21343eb9ea96096f2b5881d [2020-10-21 23:04:04,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 23:04:04,063 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 23:04:04,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 23:04:04,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 23:04:04,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 23:04:04,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:04:04" (1/1) ... [2020-10-21 23:04:04,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da472c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:04, skipping insertion in model container [2020-10-21 23:04:04,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:04:04" (1/1) ... [2020-10-21 23:04:04,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 23:04:04,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 23:04:04,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:04:04,652 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 23:04:04,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:04:04,782 INFO L208 MainTranslator]: Completed translation [2020-10-21 23:04:04,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:04 WrapperNode [2020-10-21 23:04:04,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 23:04:04,784 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 23:04:04,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 23:04:04,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 23:04:04,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:04" (1/1) ... [2020-10-21 23:04:04,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:04" (1/1) ... [2020-10-21 23:04:04,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 23:04:04,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 23:04:04,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 23:04:04,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 23:04:04,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:04" (1/1) ... [2020-10-21 23:04:04,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:04" (1/1) ... [2020-10-21 23:04:04,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:04" (1/1) ... [2020-10-21 23:04:04,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:04" (1/1) ... [2020-10-21 23:04:04,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:04" (1/1) ... [2020-10-21 23:04:04,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:04" (1/1) ... [2020-10-21 23:04:04,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:04" (1/1) ... [2020-10-21 23:04:04,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 23:04:04,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 23:04:04,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 23:04:04,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 23:04:04,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:04:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 23:04:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 23:04:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 23:04:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 23:04:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 23:04:04,935 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 23:04:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 23:04:04,936 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 23:04:04,936 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 23:04:04,936 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 23:04:04,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 23:04:04,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 23:04:04,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 23:04:04,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 23:04:04,941 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 23:04:05,283 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 23:04:05,284 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 23:04:05,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:04:05 BoogieIcfgContainer [2020-10-21 23:04:05,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 23:04:05,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 23:04:05,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 23:04:05,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 23:04:05,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 11:04:04" (1/3) ... [2020-10-21 23:04:05,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b67f1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:04:05, skipping insertion in model container [2020-10-21 23:04:05,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:04" (2/3) ... [2020-10-21 23:04:05,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b67f1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:04:05, skipping insertion in model container [2020-10-21 23:04:05,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:04:05" (3/3) ... [2020-10-21 23:04:05,295 INFO L111 eAbstractionObserver]: Analyzing ICFG safe001_tso.oepc.i [2020-10-21 23:04:05,306 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 23:04:05,307 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 23:04:05,313 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 23:04:05,314 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 23:04:05,353 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,354 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,357 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,358 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,358 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,358 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,359 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,359 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,360 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,360 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,360 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,361 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,361 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,361 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,362 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,362 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,363 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,366 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,367 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,383 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,385 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,385 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,389 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,390 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,390 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,390 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:05,398 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 23:04:05,409 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 23:04:05,425 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:04:05,425 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:04:05,426 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:04:05,426 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 23:04:05,426 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:04:05,426 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:04:05,426 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:04:05,426 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:04:05,438 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:04:05,439 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-21 23:04:05,441 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-21 23:04:05,442 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-10-21 23:04:05,488 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-10-21 23:04:05,489 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 23:04:05,494 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-21 23:04:05,497 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-21 23:04:06,612 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-10-21 23:04:07,042 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-21 23:04:07,143 INFO L131 LiptonReduction]: Checked pairs total: 3163 [2020-10-21 23:04:07,143 INFO L133 LiptonReduction]: Total number of compositions: 72 [2020-10-21 23:04:07,150 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-21 23:04:07,181 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-21 23:04:07,183 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-21 23:04:07,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 23:04:07,191 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:04:07,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:04:07,192 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:04:07,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:04:07,197 INFO L82 PathProgramCache]: Analyzing trace with hash 2115134997, now seen corresponding path program 1 times [2020-10-21 23:04:07,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:04:07,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572815129] [2020-10-21 23:04:07,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:04:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:04:07,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:04:07,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572815129] [2020-10-21 23:04:07,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:04:07,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:04:07,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767304058] [2020-10-21 23:04:07,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 23:04:07,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:04:07,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 23:04:07,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 23:04:07,410 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-21 23:04:07,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:04:07,444 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-21 23:04:07,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 23:04:07,446 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-21 23:04:07,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:04:07,461 INFO L225 Difference]: With dead ends: 362 [2020-10-21 23:04:07,462 INFO L226 Difference]: Without dead ends: 298 [2020-10-21 23:04:07,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 23:04:07,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-21 23:04:07,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-21 23:04:07,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-21 23:04:07,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-21 23:04:07,546 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-21 23:04:07,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:04:07,548 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-21 23:04:07,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 23:04:07,555 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-21 23:04:07,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 23:04:07,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:04:07,557 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:04:07,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 23:04:07,558 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:04:07,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:04:07,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1144664430, now seen corresponding path program 1 times [2020-10-21 23:04:07,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:04:07,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540787114] [2020-10-21 23:04:07,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:04:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:04:07,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:04:07,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540787114] [2020-10-21 23:04:07,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:04:07,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:04:07,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068100779] [2020-10-21 23:04:07,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:04:07,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:04:07,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:04:07,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:04:07,705 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-21 23:04:07,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:04:07,722 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-21 23:04:07,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:04:07,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-21 23:04:07,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:04:07,725 INFO L225 Difference]: With dead ends: 217 [2020-10-21 23:04:07,725 INFO L226 Difference]: Without dead ends: 217 [2020-10-21 23:04:07,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:04:07,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-21 23:04:07,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-21 23:04:07,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-21 23:04:07,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-21 23:04:07,744 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-21 23:04:07,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:04:07,744 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-21 23:04:07,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:04:07,744 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-21 23:04:07,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 23:04:07,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:04:07,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:04:07,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 23:04:07,747 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:04:07,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:04:07,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1523104206, now seen corresponding path program 1 times [2020-10-21 23:04:07,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:04:07,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058415660] [2020-10-21 23:04:07,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:04:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:04:07,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:04:07,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058415660] [2020-10-21 23:04:07,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:04:07,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:04:07,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806280094] [2020-10-21 23:04:07,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:04:07,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:04:07,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:04:07,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:04:07,810 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-21 23:04:07,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:04:07,834 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-21 23:04:07,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:04:07,835 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-21 23:04:07,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:04:07,836 INFO L225 Difference]: With dead ends: 136 [2020-10-21 23:04:07,836 INFO L226 Difference]: Without dead ends: 136 [2020-10-21 23:04:07,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:04:07,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-21 23:04:07,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-21 23:04:07,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-21 23:04:07,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-21 23:04:07,845 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-21 23:04:07,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:04:07,845 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-21 23:04:07,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:04:07,845 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-21 23:04:07,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 23:04:07,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:04:07,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:04:07,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 23:04:07,851 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:04:07,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:04:07,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1616090199, now seen corresponding path program 1 times [2020-10-21 23:04:07,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:04:07,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146636341] [2020-10-21 23:04:07,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:04:07,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:04:07,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:04:07,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146636341] [2020-10-21 23:04:07,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:04:07,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 23:04:07,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369952493] [2020-10-21 23:04:07,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:04:07,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:04:07,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:04:07,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:04:07,951 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-21 23:04:07,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:04:07,983 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-21 23:04:07,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:04:07,983 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-21 23:04:07,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:04:07,984 INFO L225 Difference]: With dead ends: 109 [2020-10-21 23:04:07,984 INFO L226 Difference]: Without dead ends: 109 [2020-10-21 23:04:07,985 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:04:07,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-21 23:04:07,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-21 23:04:07,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-21 23:04:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-21 23:04:07,990 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-21 23:04:07,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:04:07,990 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-21 23:04:08,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:04:08,005 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-21 23:04:08,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 23:04:08,007 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:04:08,007 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:04:08,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 23:04:08,007 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:04:08,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:04:08,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1930604432, now seen corresponding path program 1 times [2020-10-21 23:04:08,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:04:08,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726616974] [2020-10-21 23:04:08,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:04:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:04:08,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:04:08,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726616974] [2020-10-21 23:04:08,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:04:08,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:04:08,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210909145] [2020-10-21 23:04:08,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:04:08,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:04:08,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:04:08,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:04:08,064 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-10-21 23:04:08,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:04:08,090 INFO L93 Difference]: Finished difference Result 127 states and 273 transitions. [2020-10-21 23:04:08,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:04:08,091 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-21 23:04:08,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:04:08,092 INFO L225 Difference]: With dead ends: 127 [2020-10-21 23:04:08,092 INFO L226 Difference]: Without dead ends: 93 [2020-10-21 23:04:08,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:04:08,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-21 23:04:08,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-10-21 23:04:08,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-21 23:04:08,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 199 transitions. [2020-10-21 23:04:08,097 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 199 transitions. Word has length 18 [2020-10-21 23:04:08,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:04:08,097 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 199 transitions. [2020-10-21 23:04:08,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:04:08,097 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 199 transitions. [2020-10-21 23:04:08,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 23:04:08,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:04:08,099 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:04:08,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 23:04:08,099 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:04:08,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:04:08,099 INFO L82 PathProgramCache]: Analyzing trace with hash -17726670, now seen corresponding path program 2 times [2020-10-21 23:04:08,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:04:08,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059196345] [2020-10-21 23:04:08,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:04:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:04:08,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:04:08,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059196345] [2020-10-21 23:04:08,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:04:08,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:04:08,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002456978] [2020-10-21 23:04:08,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:04:08,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:04:08,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:04:08,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:04:08,162 INFO L87 Difference]: Start difference. First operand 93 states and 199 transitions. Second operand 5 states. [2020-10-21 23:04:08,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:04:08,195 INFO L93 Difference]: Finished difference Result 119 states and 247 transitions. [2020-10-21 23:04:08,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:04:08,195 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-21 23:04:08,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:04:08,196 INFO L225 Difference]: With dead ends: 119 [2020-10-21 23:04:08,196 INFO L226 Difference]: Without dead ends: 85 [2020-10-21 23:04:08,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:04:08,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-21 23:04:08,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-21 23:04:08,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-21 23:04:08,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-10-21 23:04:08,200 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-10-21 23:04:08,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:04:08,201 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-10-21 23:04:08,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:04:08,201 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-10-21 23:04:08,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 23:04:08,202 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:04:08,202 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:04:08,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 23:04:08,202 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:04:08,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:04:08,203 INFO L82 PathProgramCache]: Analyzing trace with hash 129745538, now seen corresponding path program 3 times [2020-10-21 23:04:08,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:04:08,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491978710] [2020-10-21 23:04:08,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:04:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:04:08,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:04:08,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491978710] [2020-10-21 23:04:08,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:04:08,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:04:08,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227813148] [2020-10-21 23:04:08,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:04:08,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:04:08,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:04:08,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:04:08,261 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 5 states. [2020-10-21 23:04:08,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:04:08,296 INFO L93 Difference]: Finished difference Result 123 states and 251 transitions. [2020-10-21 23:04:08,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:04:08,297 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-21 23:04:08,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:04:08,298 INFO L225 Difference]: With dead ends: 123 [2020-10-21 23:04:08,298 INFO L226 Difference]: Without dead ends: 61 [2020-10-21 23:04:08,298 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:04:08,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-21 23:04:08,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-10-21 23:04:08,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-21 23:04:08,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 117 transitions. [2020-10-21 23:04:08,301 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 117 transitions. Word has length 18 [2020-10-21 23:04:08,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:04:08,302 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 117 transitions. [2020-10-21 23:04:08,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:04:08,302 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 117 transitions. [2020-10-21 23:04:08,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 23:04:08,303 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:04:08,303 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:04:08,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 23:04:08,303 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:04:08,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:04:08,304 INFO L82 PathProgramCache]: Analyzing trace with hash -898209114, now seen corresponding path program 4 times [2020-10-21 23:04:08,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:04:08,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539168765] [2020-10-21 23:04:08,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:04:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:04:08,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:04:08,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539168765] [2020-10-21 23:04:08,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:04:08,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:04:08,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862430104] [2020-10-21 23:04:08,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:04:08,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:04:08,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:04:08,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:04:08,350 INFO L87 Difference]: Start difference. First operand 61 states and 117 transitions. Second operand 4 states. [2020-10-21 23:04:08,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:04:08,365 INFO L93 Difference]: Finished difference Result 60 states and 116 transitions. [2020-10-21 23:04:08,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:04:08,365 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-21 23:04:08,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:04:08,365 INFO L225 Difference]: With dead ends: 60 [2020-10-21 23:04:08,365 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 23:04:08,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:04:08,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 23:04:08,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 23:04:08,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 23:04:08,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 23:04:08,367 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-21 23:04:08,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:04:08,367 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 23:04:08,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:04:08,367 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 23:04:08,368 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 23:04:08,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 23:04:08,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 11:04:08 BasicIcfg [2020-10-21 23:04:08,371 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 23:04:08,373 INFO L168 Benchmark]: Toolchain (without parser) took 4314.96 ms. Allocated memory was 146.8 MB in the beginning and 246.9 MB in the end (delta: 100.1 MB). Free memory was 100.5 MB in the beginning and 157.2 MB in the end (delta: -56.7 MB). Peak memory consumption was 43.5 MB. Max. memory is 7.1 GB. [2020-10-21 23:04:08,374 INFO L168 Benchmark]: CDTParser took 1.96 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 23:04:08,375 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.23 ms. Allocated memory was 146.8 MB in the beginning and 202.4 MB in the end (delta: 55.6 MB). Free memory was 99.7 MB in the beginning and 159.0 MB in the end (delta: -59.3 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2020-10-21 23:04:08,376 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.01 ms. Allocated memory is still 202.4 MB. Free memory was 159.0 MB in the beginning and 156.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-21 23:04:08,377 INFO L168 Benchmark]: Boogie Preprocessor took 24.99 ms. Allocated memory is still 202.4 MB. Free memory was 156.4 MB in the beginning and 155.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-21 23:04:08,377 INFO L168 Benchmark]: RCFGBuilder took 432.11 ms. Allocated memory is still 202.4 MB. Free memory was 155.0 MB in the beginning and 131.3 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-10-21 23:04:08,378 INFO L168 Benchmark]: TraceAbstraction took 3083.61 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 130.7 MB in the beginning and 157.2 MB in the end (delta: -26.5 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:04:08,383 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.96 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 719.23 ms. Allocated memory was 146.8 MB in the beginning and 202.4 MB in the end (delta: 55.6 MB). Free memory was 99.7 MB in the beginning and 159.0 MB in the end (delta: -59.3 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.01 ms. Allocated memory is still 202.4 MB. Free memory was 159.0 MB in the beginning and 156.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.99 ms. Allocated memory is still 202.4 MB. Free memory was 156.4 MB in the beginning and 155.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 432.11 ms. Allocated memory is still 202.4 MB. Free memory was 155.0 MB in the beginning and 131.3 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3083.61 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 130.7 MB in the beginning and 157.2 MB in the end (delta: -26.5 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 778 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 58 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 85 PlacesBefore, 32 PlacesAfterwards, 78 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 72 TotalNumberOfCompositions, 3163 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 140 SDtfs, 93 SDslu, 188 SDs, 0 SdLazy, 75 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 4086 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...