/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:31:14,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:31:14,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:31:14,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:31:14,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:31:14,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:31:14,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:31:14,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:31:14,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:31:14,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:31:14,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:31:14,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:31:14,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:31:14,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:31:14,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:31:14,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:31:14,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:31:14,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:31:14,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:31:14,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:31:14,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:31:14,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:31:14,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:31:14,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:31:14,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 18:31:14,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:31:14,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:31:14,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:31:14,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:31:14,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:31:14,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:31:14,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:31:14,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:31:14,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:31:14,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:31:14,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:31:14,881 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 18:31:14,902 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:31:14,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:31:14,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:31:14,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:31:14,904 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:31:14,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:31:14,904 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:31:14,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:31:14,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:31:14,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:31:14,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:31:14,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:31:14,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:31:14,906 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:31:14,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:31:14,906 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:31:14,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:31:14,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:31:14,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:31:14,907 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:31:14,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:31:14,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:31:14,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:31:14,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:31:14,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:31:14,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:31:14,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:31:14,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:31:14,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:31:14,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:31:15,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:31:15,241 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:31:15,245 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:31:15,247 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:31:15,247 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:31:15,248 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.opt.i [2020-10-15 18:31:15,305 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/591db5060/a04c5265e98c4a65bb42b2c2d1bbda30/FLAG8d7841d7d [2020-10-15 18:31:15,873 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:31:15,874 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe005_tso.opt.i [2020-10-15 18:31:15,888 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/591db5060/a04c5265e98c4a65bb42b2c2d1bbda30/FLAG8d7841d7d [2020-10-15 18:31:16,129 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/591db5060/a04c5265e98c4a65bb42b2c2d1bbda30 [2020-10-15 18:31:16,137 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:31:16,139 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:31:16,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:31:16,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:31:16,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:31:16,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:31:16" (1/1) ... [2020-10-15 18:31:16,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd39ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:16, skipping insertion in model container [2020-10-15 18:31:16,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:31:16" (1/1) ... [2020-10-15 18:31:16,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:31:16,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:31:16,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:31:16,797 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:31:16,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:31:16,970 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:31:16,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:16 WrapperNode [2020-10-15 18:31:16,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:31:16,973 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:31:16,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:31:16,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:31:16,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:16" (1/1) ... [2020-10-15 18:31:17,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:16" (1/1) ... [2020-10-15 18:31:17,042 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:31:17,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:31:17,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:31:17,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:31:17,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:16" (1/1) ... [2020-10-15 18:31:17,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:16" (1/1) ... [2020-10-15 18:31:17,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:16" (1/1) ... [2020-10-15 18:31:17,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:16" (1/1) ... [2020-10-15 18:31:17,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:16" (1/1) ... [2020-10-15 18:31:17,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:16" (1/1) ... [2020-10-15 18:31:17,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:16" (1/1) ... [2020-10-15 18:31:17,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:31:17,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:31:17,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:31:17,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:31:17,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:16" (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 [2020-10-15 18:31:17,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:31:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:31:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:31:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:31:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:31:17,143 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:31:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:31:17,147 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:31:17,147 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:31:17,147 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:31:17,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:31:17,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:31:17,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:31:17,150 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:31:17,533 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:31:17,534 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:31:17,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:31:17 BoogieIcfgContainer [2020-10-15 18:31:17,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:31:17,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:31:17,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:31:17,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:31:17,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:31:16" (1/3) ... [2020-10-15 18:31:17,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7680d2a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:31:17, skipping insertion in model container [2020-10-15 18:31:17,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:16" (2/3) ... [2020-10-15 18:31:17,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7680d2a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:31:17, skipping insertion in model container [2020-10-15 18:31:17,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:31:17" (3/3) ... [2020-10-15 18:31:17,544 INFO L111 eAbstractionObserver]: Analyzing ICFG safe005_tso.opt.i [2020-10-15 18:31:17,556 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:31:17,556 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:31:17,564 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:31:17,565 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:31:17,591 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,591 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,591 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,592 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,592 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,592 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,593 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,593 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,593 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,593 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,594 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,594 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,595 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,595 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,595 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,595 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,596 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,596 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,599 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,600 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,600 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,600 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,605 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,605 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,605 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,606 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,610 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,610 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,610 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,610 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:17,625 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 18:31:17,642 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:31:17,643 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:31:17,643 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:31:17,643 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:31:17,643 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:31:17,643 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:31:17,643 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:31:17,643 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:31:17,654 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:31:17,656 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-15 18:31:17,658 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-15 18:31:17,660 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-15 18:31:17,699 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-15 18:31:17,699 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:31:17,704 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-15 18:31:17,707 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 18:31:19,282 INFO L132 LiptonReduction]: Checked pairs total: 2936 [2020-10-15 18:31:19,283 INFO L134 LiptonReduction]: Total number of compositions: 59 [2020-10-15 18:31:19,290 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-15 18:31:19,319 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-15 18:31:19,322 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-15 18:31:19,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 18:31:19,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:31:19,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:31:19,332 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:31:19,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:31:19,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1655297948, now seen corresponding path program 1 times [2020-10-15 18:31:19,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:31:19,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912296878] [2020-10-15 18:31:19,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:31:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:31:19,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:31:19,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912296878] [2020-10-15 18:31:19,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:31:19,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:31:19,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046805207] [2020-10-15 18:31:19,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:31:19,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:31:19,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:31:19,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:31:19,590 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-15 18:31:19,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:31:19,652 INFO L93 Difference]: Finished difference Result 266 states and 752 transitions. [2020-10-15 18:31:19,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:31:19,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 18:31:19,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:31:19,670 INFO L225 Difference]: With dead ends: 266 [2020-10-15 18:31:19,670 INFO L226 Difference]: Without dead ends: 202 [2020-10-15 18:31:19,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:31:19,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-15 18:31:19,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-15 18:31:19,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-15 18:31:19,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-15 18:31:19,738 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 8 [2020-10-15 18:31:19,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:31:19,739 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-15 18:31:19,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:31:19,740 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-15 18:31:19,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 18:31:19,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:31:19,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:31:19,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:31:19,743 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:31:19,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:31:19,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1603389483, now seen corresponding path program 1 times [2020-10-15 18:31:19,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:31:19,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638454948] [2020-10-15 18:31:19,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:31:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:31:19,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:31:19,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638454948] [2020-10-15 18:31:19,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:31:19,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:31:19,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195898457] [2020-10-15 18:31:19,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:31:19,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:31:19,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:31:19,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:31:19,869 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 4 states. [2020-10-15 18:31:19,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:31:19,903 INFO L93 Difference]: Finished difference Result 254 states and 666 transitions. [2020-10-15 18:31:19,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:31:19,904 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-15 18:31:19,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:31:19,907 INFO L225 Difference]: With dead ends: 254 [2020-10-15 18:31:19,907 INFO L226 Difference]: Without dead ends: 190 [2020-10-15 18:31:19,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:31:19,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-10-15 18:31:19,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2020-10-15 18:31:19,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-10-15 18:31:19,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 502 transitions. [2020-10-15 18:31:19,927 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 502 transitions. Word has length 10 [2020-10-15 18:31:19,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:31:19,928 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 502 transitions. [2020-10-15 18:31:19,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:31:19,928 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 502 transitions. [2020-10-15 18:31:19,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 18:31:19,930 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:31:19,930 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:31:19,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:31:19,931 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:31:19,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:31:19,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1533986257, now seen corresponding path program 1 times [2020-10-15 18:31:19,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:31:19,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861889504] [2020-10-15 18:31:19,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:31:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:31:20,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:31:20,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861889504] [2020-10-15 18:31:20,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:31:20,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:31:20,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107148704] [2020-10-15 18:31:20,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:31:20,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:31:20,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:31:20,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:31:20,002 INFO L87 Difference]: Start difference. First operand 190 states and 502 transitions. Second operand 4 states. [2020-10-15 18:31:20,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:31:20,043 INFO L93 Difference]: Finished difference Result 286 states and 722 transitions. [2020-10-15 18:31:20,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:31:20,044 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 18:31:20,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:31:20,046 INFO L225 Difference]: With dead ends: 286 [2020-10-15 18:31:20,046 INFO L226 Difference]: Without dead ends: 178 [2020-10-15 18:31:20,046 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 [2020-10-15 18:31:20,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-15 18:31:20,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 154. [2020-10-15 18:31:20,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-15 18:31:20,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 376 transitions. [2020-10-15 18:31:20,063 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 376 transitions. Word has length 11 [2020-10-15 18:31:20,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:31:20,064 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 376 transitions. [2020-10-15 18:31:20,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:31:20,064 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 376 transitions. [2020-10-15 18:31:20,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:31:20,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:31:20,066 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:31:20,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:31:20,066 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:31:20,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:31:20,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1026948662, now seen corresponding path program 1 times [2020-10-15 18:31:20,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:31:20,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499692027] [2020-10-15 18:31:20,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:31:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:31:20,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:31:20,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499692027] [2020-10-15 18:31:20,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:31:20,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:31:20,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237147416] [2020-10-15 18:31:20,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:31:20,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:31:20,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:31:20,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:31:20,109 INFO L87 Difference]: Start difference. First operand 154 states and 376 transitions. Second operand 3 states. [2020-10-15 18:31:20,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:31:20,126 INFO L93 Difference]: Finished difference Result 174 states and 416 transitions. [2020-10-15 18:31:20,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:31:20,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-15 18:31:20,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:31:20,128 INFO L225 Difference]: With dead ends: 174 [2020-10-15 18:31:20,128 INFO L226 Difference]: Without dead ends: 72 [2020-10-15 18:31:20,128 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 [2020-10-15 18:31:20,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-15 18:31:20,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-15 18:31:20,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-15 18:31:20,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 154 transitions. [2020-10-15 18:31:20,134 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 154 transitions. Word has length 12 [2020-10-15 18:31:20,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:31:20,135 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 154 transitions. [2020-10-15 18:31:20,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:31:20,135 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 154 transitions. [2020-10-15 18:31:20,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:31:20,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:31:20,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:31:20,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:31:20,137 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:31:20,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:31:20,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1770638686, now seen corresponding path program 1 times [2020-10-15 18:31:20,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:31:20,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995487525] [2020-10-15 18:31:20,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:31:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:31:20,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:31:20,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995487525] [2020-10-15 18:31:20,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:31:20,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:31:20,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514681362] [2020-10-15 18:31:20,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:31:20,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:31:20,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:31:20,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:31:20,196 INFO L87 Difference]: Start difference. First operand 72 states and 154 transitions. Second operand 4 states. [2020-10-15 18:31:20,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:31:20,234 INFO L93 Difference]: Finished difference Result 85 states and 167 transitions. [2020-10-15 18:31:20,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:31:20,234 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-15 18:31:20,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:31:20,235 INFO L225 Difference]: With dead ends: 85 [2020-10-15 18:31:20,236 INFO L226 Difference]: Without dead ends: 61 [2020-10-15 18:31:20,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:31:20,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-15 18:31:20,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-10-15 18:31:20,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-15 18:31:20,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 118 transitions. [2020-10-15 18:31:20,241 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 118 transitions. Word has length 13 [2020-10-15 18:31:20,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:31:20,241 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 118 transitions. [2020-10-15 18:31:20,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:31:20,241 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 118 transitions. [2020-10-15 18:31:20,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:31:20,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:31:20,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:31:20,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:31:20,243 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:31:20,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:31:20,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1873051802, now seen corresponding path program 1 times [2020-10-15 18:31:20,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:31:20,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977150785] [2020-10-15 18:31:20,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:31:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:31:20,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:31:20,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977150785] [2020-10-15 18:31:20,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:31:20,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:31:20,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384438310] [2020-10-15 18:31:20,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:31:20,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:31:20,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:31:20,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:31:20,312 INFO L87 Difference]: Start difference. First operand 61 states and 118 transitions. Second operand 5 states. [2020-10-15 18:31:20,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:31:20,369 INFO L93 Difference]: Finished difference Result 62 states and 108 transitions. [2020-10-15 18:31:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:31:20,369 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-15 18:31:20,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:31:20,370 INFO L225 Difference]: With dead ends: 62 [2020-10-15 18:31:20,370 INFO L226 Difference]: Without dead ends: 47 [2020-10-15 18:31:20,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:31:20,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-15 18:31:20,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-15 18:31:20,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-15 18:31:20,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 78 transitions. [2020-10-15 18:31:20,375 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 78 transitions. Word has length 14 [2020-10-15 18:31:20,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:31:20,375 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 78 transitions. [2020-10-15 18:31:20,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:31:20,375 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 78 transitions. [2020-10-15 18:31:20,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:31:20,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:31:20,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:31:20,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:31:20,377 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:31:20,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:31:20,377 INFO L82 PathProgramCache]: Analyzing trace with hash 877737129, now seen corresponding path program 1 times [2020-10-15 18:31:20,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:31:20,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442788152] [2020-10-15 18:31:20,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:31:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:31:20,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:31:20,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442788152] [2020-10-15 18:31:20,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:31:20,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:31:20,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550033710] [2020-10-15 18:31:20,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 18:31:20,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:31:20,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 18:31:20,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:31:20,489 INFO L87 Difference]: Start difference. First operand 47 states and 78 transitions. Second operand 6 states. [2020-10-15 18:31:20,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:31:20,537 INFO L93 Difference]: Finished difference Result 44 states and 70 transitions. [2020-10-15 18:31:20,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:31:20,538 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-15 18:31:20,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:31:20,539 INFO L225 Difference]: With dead ends: 44 [2020-10-15 18:31:20,539 INFO L226 Difference]: Without dead ends: 38 [2020-10-15 18:31:20,539 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:31:20,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-15 18:31:20,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-15 18:31:20,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-15 18:31:20,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 60 transitions. [2020-10-15 18:31:20,542 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 60 transitions. Word has length 15 [2020-10-15 18:31:20,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:31:20,542 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 60 transitions. [2020-10-15 18:31:20,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 18:31:20,543 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2020-10-15 18:31:20,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:31:20,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:31:20,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:31:20,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:31:20,544 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:31:20,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:31:20,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1637147722, now seen corresponding path program 1 times [2020-10-15 18:31:20,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:31:20,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067569735] [2020-10-15 18:31:20,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:31:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:31:20,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:31:20,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067569735] [2020-10-15 18:31:20,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:31:20,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:31:20,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973891869] [2020-10-15 18:31:20,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:31:20,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:31:20,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:31:20,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:31:20,578 INFO L87 Difference]: Start difference. First operand 38 states and 60 transitions. Second operand 4 states. [2020-10-15 18:31:20,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:31:20,588 INFO L93 Difference]: Finished difference Result 37 states and 59 transitions. [2020-10-15 18:31:20,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:31:20,589 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-15 18:31:20,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:31:20,589 INFO L225 Difference]: With dead ends: 37 [2020-10-15 18:31:20,589 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:31:20,590 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 [2020-10-15 18:31:20,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:31:20,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:31:20,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:31:20,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:31:20,591 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-15 18:31:20,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:31:20,591 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:31:20,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:31:20,591 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:31:20,591 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:31:20,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 18:31:20,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:31:20 BasicIcfg [2020-10-15 18:31:20,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:31:20,598 INFO L168 Benchmark]: Toolchain (without parser) took 4458.63 ms. Allocated memory was 249.6 MB in the beginning and 369.1 MB in the end (delta: 119.5 MB). Free memory was 204.0 MB in the beginning and 245.5 MB in the end (delta: -41.5 MB). Peak memory consumption was 78.1 MB. Max. memory is 14.2 GB. [2020-10-15 18:31:20,599 INFO L168 Benchmark]: CDTParser took 1.31 ms. Allocated memory is still 249.6 MB. Free memory was 227.6 MB in the beginning and 226.8 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-15 18:31:20,600 INFO L168 Benchmark]: CACSL2BoogieTranslator took 832.09 ms. Allocated memory was 249.6 MB in the beginning and 308.8 MB in the end (delta: 59.2 MB). Free memory was 204.0 MB in the beginning and 257.8 MB in the end (delta: -53.8 MB). Peak memory consumption was 27.1 MB. Max. memory is 14.2 GB. [2020-10-15 18:31:20,601 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.72 ms. Allocated memory is still 308.8 MB. Free memory was 257.8 MB in the beginning and 256.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:31:20,602 INFO L168 Benchmark]: Boogie Preprocessor took 25.79 ms. Allocated memory is still 308.8 MB. Free memory was 256.1 MB in the beginning and 254.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:31:20,602 INFO L168 Benchmark]: RCFGBuilder took 467.57 ms. Allocated memory is still 308.8 MB. Free memory was 254.5 MB in the beginning and 231.7 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 14.2 GB. [2020-10-15 18:31:20,603 INFO L168 Benchmark]: TraceAbstraction took 3058.20 ms. Allocated memory was 308.8 MB in the beginning and 369.1 MB in the end (delta: 60.3 MB). Free memory was 230.9 MB in the beginning and 245.5 MB in the end (delta: -14.6 MB). Peak memory consumption was 45.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:31:20,611 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.31 ms. Allocated memory is still 249.6 MB. Free memory was 227.6 MB in the beginning and 226.8 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 832.09 ms. Allocated memory was 249.6 MB in the beginning and 308.8 MB in the end (delta: 59.2 MB). Free memory was 204.0 MB in the beginning and 257.8 MB in the end (delta: -53.8 MB). Peak memory consumption was 27.1 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 69.72 ms. Allocated memory is still 308.8 MB. Free memory was 257.8 MB in the beginning and 256.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.79 ms. Allocated memory is still 308.8 MB. Free memory was 256.1 MB in the beginning and 254.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 467.57 ms. Allocated memory is still 308.8 MB. Free memory was 254.5 MB in the beginning and 231.7 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3058.20 ms. Allocated memory was 308.8 MB in the beginning and 369.1 MB in the end (delta: 60.3 MB). Free memory was 230.9 MB in the beginning and 245.5 MB in the end (delta: -14.6 MB). Peak memory consumption was 45.7 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 870 VarBasedMoverChecksPositive, 44 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 62 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 59 TotalNumberOfCompositions, 2936 MoverChecksTotal - 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 157 SDtfs, 123 SDslu, 177 SDs, 0 SdLazy, 115 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 24 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 2940 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...