/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-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-15 23:44:30,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-15 23:44:30,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-15 23:44:31,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-15 23:44:31,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-15 23:44:31,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-15 23:44:31,011 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-15 23:44:31,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-15 23:44:31,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-15 23:44:31,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-15 23:44:31,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-15 23:44:31,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-15 23:44:31,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-15 23:44:31,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-15 23:44:31,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-15 23:44:31,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-15 23:44:31,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-15 23:44:31,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-15 23:44:31,042 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-15 23:44:31,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-15 23:44:31,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-15 23:44:31,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-15 23:44:31,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-15 23:44:31,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-15 23:44:31,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-15 23:44:31,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-15 23:44:31,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-15 23:44:31,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-15 23:44:31,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-15 23:44:31,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-15 23:44:31,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-15 23:44:31,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-15 23:44:31,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-15 23:44:31,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-15 23:44:31,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-15 23:44:31,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-15 23:44:31,093 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-15 23:44:31,139 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-15 23:44:31,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-15 23:44:31,141 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-15 23:44:31,141 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-15 23:44:31,141 INFO L138 SettingsManager]: * Use SBE=true [2020-09-15 23:44:31,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-15 23:44:31,142 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-15 23:44:31,142 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-15 23:44:31,142 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-15 23:44:31,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-15 23:44:31,143 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-15 23:44:31,143 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-15 23:44:31,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-15 23:44:31,143 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-15 23:44:31,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-15 23:44:31,144 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-15 23:44:31,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-15 23:44:31,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-15 23:44:31,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-15 23:44:31,145 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-15 23:44:31,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-15 23:44:31,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 23:44:31,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-15 23:44:31,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-15 23:44:31,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-15 23:44:31,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-15 23:44:31,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-15 23:44:31,146 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-15 23:44:31,146 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-15 23:44:31,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-15 23:44:31,147 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-15 23:44:31,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-15 23:44:31,641 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-15 23:44:31,647 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-15 23:44:31,649 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-15 23:44:31,650 INFO L275 PluginConnector]: CDTParser initialized [2020-09-15 23:44:31,651 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2020-09-15 23:44:31,711 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e58dcdc46/8866697e01914028a4bcc1d7f01be3cc/FLAGad6e530d1 [2020-09-15 23:44:32,371 INFO L306 CDTParser]: Found 1 translation units. [2020-09-15 23:44:32,372 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2020-09-15 23:44:32,387 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e58dcdc46/8866697e01914028a4bcc1d7f01be3cc/FLAGad6e530d1 [2020-09-15 23:44:32,584 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e58dcdc46/8866697e01914028a4bcc1d7f01be3cc [2020-09-15 23:44:32,597 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-15 23:44:32,604 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-15 23:44:32,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-15 23:44:32,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-15 23:44:32,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-15 23:44:32,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:44:32" (1/1) ... [2020-09-15 23:44:32,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f84463a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:32, skipping insertion in model container [2020-09-15 23:44:32,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:44:32" (1/1) ... [2020-09-15 23:44:32,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-15 23:44:32,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-15 23:44:33,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 23:44:33,231 INFO L203 MainTranslator]: Completed pre-run [2020-09-15 23:44:33,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 23:44:33,398 INFO L208 MainTranslator]: Completed translation [2020-09-15 23:44:33,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:33 WrapperNode [2020-09-15 23:44:33,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-15 23:44:33,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-15 23:44:33,400 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-15 23:44:33,400 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-15 23:44:33,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:33" (1/1) ... [2020-09-15 23:44:33,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:33" (1/1) ... [2020-09-15 23:44:33,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-15 23:44:33,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-15 23:44:33,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-15 23:44:33,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-15 23:44:33,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:33" (1/1) ... [2020-09-15 23:44:33,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:33" (1/1) ... [2020-09-15 23:44:33,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:33" (1/1) ... [2020-09-15 23:44:33,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:33" (1/1) ... [2020-09-15 23:44:33,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:33" (1/1) ... [2020-09-15 23:44:33,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:33" (1/1) ... [2020-09-15 23:44:33,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:33" (1/1) ... [2020-09-15 23:44:33,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-15 23:44:33,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-15 23:44:33,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-15 23:44:33,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-15 23:44:33,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 23:44:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-15 23:44:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-15 23:44:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-15 23:44:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-15 23:44:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-15 23:44:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-15 23:44:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-15 23:44:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-15 23:44:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-15 23:44:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-15 23:44:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-15 23:44:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-15 23:44:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-15 23:44:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-15 23:44:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-15 23:44:33,578 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-15 23:44:34,034 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-15 23:44:34,035 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-15 23:44:34,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:44:34 BoogieIcfgContainer [2020-09-15 23:44:34,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-15 23:44:34,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-15 23:44:34,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-15 23:44:34,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-15 23:44:34,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 11:44:32" (1/3) ... [2020-09-15 23:44:34,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b96ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:44:34, skipping insertion in model container [2020-09-15 23:44:34,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:33" (2/3) ... [2020-09-15 23:44:34,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b96ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:44:34, skipping insertion in model container [2020-09-15 23:44:34,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:44:34" (3/3) ... [2020-09-15 23:44:34,052 INFO L109 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc.i [2020-09-15 23:44:34,065 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-15 23:44:34,065 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-15 23:44:34,079 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-15 23:44:34,080 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-15 23:44:34,116 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,116 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,117 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,117 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,118 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,118 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,118 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,119 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,119 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,119 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,119 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,120 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,120 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,121 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,121 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,121 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,122 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,122 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,122 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,123 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,123 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,123 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,123 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,124 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,129 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,129 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,130 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,130 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,141 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,142 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,142 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,145 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,145 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,145 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,146 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,148 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,149 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:34,175 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-15 23:44:34,207 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 23:44:34,207 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 23:44:34,207 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-15 23:44:34,207 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-15 23:44:34,208 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 23:44:34,208 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 23:44:34,208 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 23:44:34,208 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 23:44:34,230 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 80 transitions, 180 flow [2020-09-15 23:44:34,233 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow [2020-09-15 23:44:34,292 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-09-15 23:44:34,293 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 23:44:34,300 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-15 23:44:34,304 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow [2020-09-15 23:44:34,330 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-09-15 23:44:34,331 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 23:44:34,332 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-15 23:44:34,335 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-09-15 23:44:34,340 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-15 23:44:35,740 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2895 [2020-09-15 23:44:35,740 INFO L214 etLargeBlockEncoding]: Total number of compositions: 62 [2020-09-15 23:44:35,745 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-09-15 23:44:35,809 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-09-15 23:44:35,812 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-09-15 23:44:35,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-15 23:44:35,824 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:35,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:35,826 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:35,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:35,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1118879254, now seen corresponding path program 1 times [2020-09-15 23:44:35,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:35,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672165286] [2020-09-15 23:44:35,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:36,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:36,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672165286] [2020-09-15 23:44:36,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:36,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:44:36,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1387199646] [2020-09-15 23:44:36,112 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:36,116 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:36,134 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-09-15 23:44:36,134 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:36,137 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:44:36,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-15 23:44:36,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:36,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-15 23:44:36,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-15 23:44:36,160 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-09-15 23:44:36,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:36,206 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-09-15 23:44:36,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-15 23:44:36,208 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-15 23:44:36,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:36,239 INFO L225 Difference]: With dead ends: 850 [2020-09-15 23:44:36,240 INFO L226 Difference]: Without dead ends: 706 [2020-09-15 23:44:36,241 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-15 23:44:36,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-09-15 23:44:36,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-09-15 23:44:36,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-09-15 23:44:36,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-09-15 23:44:36,370 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-09-15 23:44:36,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:36,371 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-09-15 23:44:36,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-15 23:44:36,372 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-09-15 23:44:36,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-15 23:44:36,374 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:36,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:36,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-15 23:44:36,375 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:36,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:36,376 INFO L82 PathProgramCache]: Analyzing trace with hash -325524913, now seen corresponding path program 1 times [2020-09-15 23:44:36,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:36,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590733470] [2020-09-15 23:44:36,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:36,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:36,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590733470] [2020-09-15 23:44:36,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:36,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:44:36,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [164525364] [2020-09-15 23:44:36,562 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:36,563 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:36,565 INFO L274 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-09-15 23:44:36,566 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:36,566 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:44:36,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:44:36,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:36,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:44:36,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:44:36,569 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-09-15 23:44:36,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:36,622 INFO L93 Difference]: Finished difference Result 802 states and 2662 transitions. [2020-09-15 23:44:36,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 23:44:36,623 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-15 23:44:36,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:36,630 INFO L225 Difference]: With dead ends: 802 [2020-09-15 23:44:36,630 INFO L226 Difference]: Without dead ends: 658 [2020-09-15 23:44:36,631 INFO L675 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 [2020-09-15 23:44:36,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-09-15 23:44:36,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2020-09-15 23:44:36,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2020-09-15 23:44:36,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 2230 transitions. [2020-09-15 23:44:36,670 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 2230 transitions. Word has length 11 [2020-09-15 23:44:36,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:36,670 INFO L479 AbstractCegarLoop]: Abstraction has 658 states and 2230 transitions. [2020-09-15 23:44:36,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:44:36,671 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 2230 transitions. [2020-09-15 23:44:36,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-15 23:44:36,674 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:36,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:36,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-15 23:44:36,674 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:36,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:36,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1502334909, now seen corresponding path program 1 times [2020-09-15 23:44:36,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:36,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463186640] [2020-09-15 23:44:36,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:36,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:36,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463186640] [2020-09-15 23:44:36,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:36,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:44:36,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1127796935] [2020-09-15 23:44:36,835 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:36,836 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:36,839 INFO L274 McrAutomatonBuilder]: Finished intersection with 14 states and 14 transitions. [2020-09-15 23:44:36,839 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:36,849 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:44:36,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:44:36,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:36,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:44:36,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:44:36,850 INFO L87 Difference]: Start difference. First operand 658 states and 2230 transitions. Second operand 4 states. [2020-09-15 23:44:36,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:36,893 INFO L93 Difference]: Finished difference Result 738 states and 2404 transitions. [2020-09-15 23:44:36,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 23:44:36,894 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-15 23:44:36,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:36,900 INFO L225 Difference]: With dead ends: 738 [2020-09-15 23:44:36,900 INFO L226 Difference]: Without dead ends: 618 [2020-09-15 23:44:36,901 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:44:36,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2020-09-15 23:44:36,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2020-09-15 23:44:36,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2020-09-15 23:44:36,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 2058 transitions. [2020-09-15 23:44:36,950 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 2058 transitions. Word has length 12 [2020-09-15 23:44:36,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:36,950 INFO L479 AbstractCegarLoop]: Abstraction has 618 states and 2058 transitions. [2020-09-15 23:44:36,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:44:36,951 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 2058 transitions. [2020-09-15 23:44:36,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-15 23:44:36,958 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:36,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:36,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-15 23:44:36,958 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:36,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:36,959 INFO L82 PathProgramCache]: Analyzing trace with hash 672248787, now seen corresponding path program 1 times [2020-09-15 23:44:36,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:36,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11035249] [2020-09-15 23:44:36,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:37,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:37,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11035249] [2020-09-15 23:44:37,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:37,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:44:37,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1056436294] [2020-09-15 23:44:37,070 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:37,074 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:37,076 INFO L274 McrAutomatonBuilder]: Finished intersection with 22 states and 30 transitions. [2020-09-15 23:44:37,077 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:37,152 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:44:37,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:44:37,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:37,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:44:37,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:44:37,154 INFO L87 Difference]: Start difference. First operand 618 states and 2058 transitions. Second operand 4 states. [2020-09-15 23:44:37,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:37,194 INFO L93 Difference]: Finished difference Result 658 states and 2130 transitions. [2020-09-15 23:44:37,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 23:44:37,195 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-15 23:44:37,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:37,200 INFO L225 Difference]: With dead ends: 658 [2020-09-15 23:44:37,200 INFO L226 Difference]: Without dead ends: 578 [2020-09-15 23:44:37,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:44:37,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-09-15 23:44:37,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 578. [2020-09-15 23:44:37,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2020-09-15 23:44:37,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 1906 transitions. [2020-09-15 23:44:37,226 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 1906 transitions. Word has length 13 [2020-09-15 23:44:37,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:37,226 INFO L479 AbstractCegarLoop]: Abstraction has 578 states and 1906 transitions. [2020-09-15 23:44:37,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:44:37,226 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 1906 transitions. [2020-09-15 23:44:37,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-15 23:44:37,228 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:37,228 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:37,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-15 23:44:37,229 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:37,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:37,229 INFO L82 PathProgramCache]: Analyzing trace with hash -488944074, now seen corresponding path program 1 times [2020-09-15 23:44:37,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:37,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747302241] [2020-09-15 23:44:37,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:37,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:37,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747302241] [2020-09-15 23:44:37,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:37,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 23:44:37,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [637889457] [2020-09-15 23:44:37,312 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:37,314 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:37,317 INFO L274 McrAutomatonBuilder]: Finished intersection with 32 states and 49 transitions. [2020-09-15 23:44:37,318 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:37,427 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:44:37,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 23:44:37,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:37,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 23:44:37,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:44:37,429 INFO L87 Difference]: Start difference. First operand 578 states and 1906 transitions. Second operand 5 states. [2020-09-15 23:44:37,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:37,480 INFO L93 Difference]: Finished difference Result 874 states and 2856 transitions. [2020-09-15 23:44:37,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 23:44:37,481 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-15 23:44:37,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:37,486 INFO L225 Difference]: With dead ends: 874 [2020-09-15 23:44:37,486 INFO L226 Difference]: Without dead ends: 482 [2020-09-15 23:44:37,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-15 23:44:37,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-09-15 23:44:37,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2020-09-15 23:44:37,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-09-15 23:44:37,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1564 transitions. [2020-09-15 23:44:37,508 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1564 transitions. Word has length 14 [2020-09-15 23:44:37,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:37,509 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 1564 transitions. [2020-09-15 23:44:37,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 23:44:37,509 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1564 transitions. [2020-09-15 23:44:37,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-15 23:44:37,510 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:37,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:37,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-15 23:44:37,511 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:37,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:37,511 INFO L82 PathProgramCache]: Analyzing trace with hash -669040336, now seen corresponding path program 2 times [2020-09-15 23:44:37,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:37,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831807251] [2020-09-15 23:44:37,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:37,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:37,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831807251] [2020-09-15 23:44:37,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:37,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:44:37,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1473202752] [2020-09-15 23:44:37,587 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:37,589 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:37,592 INFO L274 McrAutomatonBuilder]: Finished intersection with 18 states and 20 transitions. [2020-09-15 23:44:37,592 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:37,598 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:44:37,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:44:37,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:37,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:44:37,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:44:37,599 INFO L87 Difference]: Start difference. First operand 482 states and 1564 transitions. Second operand 4 states. [2020-09-15 23:44:37,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:37,630 INFO L93 Difference]: Finished difference Result 514 states and 1620 transitions. [2020-09-15 23:44:37,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 23:44:37,630 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-09-15 23:44:37,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:37,635 INFO L225 Difference]: With dead ends: 514 [2020-09-15 23:44:37,635 INFO L226 Difference]: Without dead ends: 450 [2020-09-15 23:44:37,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:44:37,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-09-15 23:44:37,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2020-09-15 23:44:37,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2020-09-15 23:44:37,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1444 transitions. [2020-09-15 23:44:37,655 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 1444 transitions. Word has length 14 [2020-09-15 23:44:37,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:37,656 INFO L479 AbstractCegarLoop]: Abstraction has 450 states and 1444 transitions. [2020-09-15 23:44:37,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:44:37,656 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 1444 transitions. [2020-09-15 23:44:37,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-15 23:44:37,657 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:37,657 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:37,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-15 23:44:37,658 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:37,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:37,658 INFO L82 PathProgramCache]: Analyzing trace with hash -453774883, now seen corresponding path program 1 times [2020-09-15 23:44:37,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:37,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400879647] [2020-09-15 23:44:37,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:37,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:37,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400879647] [2020-09-15 23:44:37,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:37,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 23:44:37,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1143374601] [2020-09-15 23:44:37,725 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:37,726 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:37,731 INFO L274 McrAutomatonBuilder]: Finished intersection with 28 states and 39 transitions. [2020-09-15 23:44:37,731 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:37,766 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:44:37,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:44:37,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:37,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:44:37,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:44:37,768 INFO L87 Difference]: Start difference. First operand 450 states and 1444 transitions. Second operand 4 states. [2020-09-15 23:44:37,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:37,833 INFO L93 Difference]: Finished difference Result 658 states and 2016 transitions. [2020-09-15 23:44:37,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 23:44:37,833 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-15 23:44:37,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:37,837 INFO L225 Difference]: With dead ends: 658 [2020-09-15 23:44:37,837 INFO L226 Difference]: Without dead ends: 482 [2020-09-15 23:44:37,838 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:44:37,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-09-15 23:44:37,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 418. [2020-09-15 23:44:37,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-09-15 23:44:37,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 1276 transitions. [2020-09-15 23:44:37,855 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 1276 transitions. Word has length 15 [2020-09-15 23:44:37,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:37,855 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 1276 transitions. [2020-09-15 23:44:37,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:44:37,856 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 1276 transitions. [2020-09-15 23:44:37,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-15 23:44:37,857 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:37,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:37,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-15 23:44:37,858 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:37,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:37,858 INFO L82 PathProgramCache]: Analyzing trace with hash -99110680, now seen corresponding path program 1 times [2020-09-15 23:44:37,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:37,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256764553] [2020-09-15 23:44:37,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:37,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:37,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256764553] [2020-09-15 23:44:37,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:37,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 23:44:37,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [5377221] [2020-09-15 23:44:37,927 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:37,929 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:37,934 INFO L274 McrAutomatonBuilder]: Finished intersection with 26 states and 37 transitions. [2020-09-15 23:44:37,934 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:37,935 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:44:37,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:44:37,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:37,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:44:37,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:44:37,936 INFO L87 Difference]: Start difference. First operand 418 states and 1276 transitions. Second operand 4 states. [2020-09-15 23:44:37,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:37,977 INFO L93 Difference]: Finished difference Result 598 states and 1736 transitions. [2020-09-15 23:44:37,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 23:44:37,978 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-15 23:44:37,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:37,981 INFO L225 Difference]: With dead ends: 598 [2020-09-15 23:44:37,982 INFO L226 Difference]: Without dead ends: 442 [2020-09-15 23:44:37,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:44:37,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-09-15 23:44:37,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 394. [2020-09-15 23:44:37,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-15 23:44:37,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1140 transitions. [2020-09-15 23:44:37,998 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1140 transitions. Word has length 15 [2020-09-15 23:44:37,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:37,998 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 1140 transitions. [2020-09-15 23:44:37,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:44:37,999 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1140 transitions. [2020-09-15 23:44:37,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-15 23:44:38,000 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:38,000 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:38,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-15 23:44:38,000 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:38,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:38,001 INFO L82 PathProgramCache]: Analyzing trace with hash -96752386, now seen corresponding path program 1 times [2020-09-15 23:44:38,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:38,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545807581] [2020-09-15 23:44:38,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:38,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:38,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545807581] [2020-09-15 23:44:38,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:38,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 23:44:38,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [468408874] [2020-09-15 23:44:38,111 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:38,114 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:38,119 INFO L274 McrAutomatonBuilder]: Finished intersection with 32 states and 51 transitions. [2020-09-15 23:44:38,119 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:38,213 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:44:38,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 23:44:38,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:38,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 23:44:38,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:44:38,214 INFO L87 Difference]: Start difference. First operand 394 states and 1140 transitions. Second operand 5 states. [2020-09-15 23:44:38,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:38,260 INFO L93 Difference]: Finished difference Result 542 states and 1518 transitions. [2020-09-15 23:44:38,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 23:44:38,261 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-15 23:44:38,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:38,263 INFO L225 Difference]: With dead ends: 542 [2020-09-15 23:44:38,263 INFO L226 Difference]: Without dead ends: 254 [2020-09-15 23:44:38,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-15 23:44:38,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-15 23:44:38,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-09-15 23:44:38,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-09-15 23:44:38,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 691 transitions. [2020-09-15 23:44:38,272 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 691 transitions. Word has length 15 [2020-09-15 23:44:38,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:38,273 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 691 transitions. [2020-09-15 23:44:38,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 23:44:38,273 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 691 transitions. [2020-09-15 23:44:38,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-15 23:44:38,274 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:38,274 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:38,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-15 23:44:38,274 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:38,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:38,275 INFO L82 PathProgramCache]: Analyzing trace with hash 807678122, now seen corresponding path program 2 times [2020-09-15 23:44:38,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:38,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748201264] [2020-09-15 23:44:38,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:38,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:38,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748201264] [2020-09-15 23:44:38,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:38,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 23:44:38,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1642355658] [2020-09-15 23:44:38,335 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:38,337 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:38,341 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 55 transitions. [2020-09-15 23:44:38,341 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:38,365 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:44:38,394 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:44:38,405 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:44:38,423 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:44:38,437 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:44:38,454 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:44:38,475 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [17204#(not (= 4 ~__unbuffered_cnt~0))] [2020-09-15 23:44:38,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 23:44:38,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:38,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 23:44:38,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:44:38,476 INFO L87 Difference]: Start difference. First operand 254 states and 691 transitions. Second operand 5 states. [2020-09-15 23:44:38,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:38,536 INFO L93 Difference]: Finished difference Result 244 states and 585 transitions. [2020-09-15 23:44:38,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-15 23:44:38,537 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-15 23:44:38,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:38,538 INFO L225 Difference]: With dead ends: 244 [2020-09-15 23:44:38,538 INFO L226 Difference]: Without dead ends: 171 [2020-09-15 23:44:38,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-15 23:44:38,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-09-15 23:44:38,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2020-09-15 23:44:38,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-09-15 23:44:38,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 378 transitions. [2020-09-15 23:44:38,544 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 378 transitions. Word has length 15 [2020-09-15 23:44:38,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:38,545 INFO L479 AbstractCegarLoop]: Abstraction has 171 states and 378 transitions. [2020-09-15 23:44:38,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 23:44:38,545 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 378 transitions. [2020-09-15 23:44:38,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-15 23:44:38,546 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:38,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:38,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-15 23:44:38,546 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:38,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:38,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1331262194, now seen corresponding path program 1 times [2020-09-15 23:44:38,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:38,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075189978] [2020-09-15 23:44:38,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:38,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:38,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075189978] [2020-09-15 23:44:38,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:38,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-15 23:44:38,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [388838730] [2020-09-15 23:44:38,619 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:38,621 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:38,628 INFO L274 McrAutomatonBuilder]: Finished intersection with 45 states and 77 transitions. [2020-09-15 23:44:38,628 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:38,639 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:44:38,659 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:44:38,683 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:44:38,834 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:44:38,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-15 23:44:38,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:38,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-15 23:44:38,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-15 23:44:38,836 INFO L87 Difference]: Start difference. First operand 171 states and 378 transitions. Second operand 6 states. [2020-09-15 23:44:38,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:38,907 INFO L93 Difference]: Finished difference Result 147 states and 307 transitions. [2020-09-15 23:44:38,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-15 23:44:38,907 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-09-15 23:44:38,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:38,909 INFO L225 Difference]: With dead ends: 147 [2020-09-15 23:44:38,909 INFO L226 Difference]: Without dead ends: 107 [2020-09-15 23:44:38,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 13 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-15 23:44:38,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-09-15 23:44:38,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-09-15 23:44:38,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-09-15 23:44:38,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 217 transitions. [2020-09-15 23:44:38,915 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 217 transitions. Word has length 17 [2020-09-15 23:44:38,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:38,916 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 217 transitions. [2020-09-15 23:44:38,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-15 23:44:38,916 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 217 transitions. [2020-09-15 23:44:38,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-15 23:44:38,917 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:38,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:38,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-15 23:44:38,917 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:38,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:38,918 INFO L82 PathProgramCache]: Analyzing trace with hash 461519417, now seen corresponding path program 1 times [2020-09-15 23:44:38,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:38,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146655607] [2020-09-15 23:44:38,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:39,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:39,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146655607] [2020-09-15 23:44:39,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:39,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-15 23:44:39,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [754965648] [2020-09-15 23:44:39,012 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:39,015 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:39,021 INFO L274 McrAutomatonBuilder]: Finished intersection with 29 states and 36 transitions. [2020-09-15 23:44:39,021 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:39,028 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:44:39,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 23:44:39,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:39,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 23:44:39,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:44:39,029 INFO L87 Difference]: Start difference. First operand 107 states and 217 transitions. Second operand 5 states. [2020-09-15 23:44:39,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:39,065 INFO L93 Difference]: Finished difference Result 121 states and 234 transitions. [2020-09-15 23:44:39,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-15 23:44:39,066 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-09-15 23:44:39,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:39,067 INFO L225 Difference]: With dead ends: 121 [2020-09-15 23:44:39,067 INFO L226 Difference]: Without dead ends: 105 [2020-09-15 23:44:39,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-15 23:44:39,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-09-15 23:44:39,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2020-09-15 23:44:39,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-09-15 23:44:39,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 205 transitions. [2020-09-15 23:44:39,072 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 205 transitions. Word has length 19 [2020-09-15 23:44:39,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:39,072 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 205 transitions. [2020-09-15 23:44:39,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 23:44:39,072 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 205 transitions. [2020-09-15 23:44:39,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-15 23:44:39,073 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:39,073 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:39,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-15 23:44:39,073 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:39,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:39,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1319799301, now seen corresponding path program 2 times [2020-09-15 23:44:39,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:39,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611662033] [2020-09-15 23:44:39,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:39,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:39,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611662033] [2020-09-15 23:44:39,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:39,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-15 23:44:39,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [511038437] [2020-09-15 23:44:39,169 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:39,171 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:39,178 INFO L274 McrAutomatonBuilder]: Finished intersection with 37 states and 51 transitions. [2020-09-15 23:44:39,178 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:39,199 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:44:39,229 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [18507#(<= ~__unbuffered_cnt~0 0)] [2020-09-15 23:44:39,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-15 23:44:39,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:39,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-15 23:44:39,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-15 23:44:39,230 INFO L87 Difference]: Start difference. First operand 103 states and 205 transitions. Second operand 8 states. [2020-09-15 23:44:39,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:39,281 INFO L93 Difference]: Finished difference Result 93 states and 190 transitions. [2020-09-15 23:44:39,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-15 23:44:39,282 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-09-15 23:44:39,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:39,282 INFO L225 Difference]: With dead ends: 93 [2020-09-15 23:44:39,282 INFO L226 Difference]: Without dead ends: 0 [2020-09-15 23:44:39,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-15 23:44:39,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-15 23:44:39,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-15 23:44:39,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-15 23:44:39,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-15 23:44:39,284 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-09-15 23:44:39,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:39,284 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-15 23:44:39,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-15 23:44:39,284 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-15 23:44:39,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-15 23:44:39,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-15 23:44:39,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 11:44:39 BasicIcfg [2020-09-15 23:44:39,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-15 23:44:39,301 INFO L168 Benchmark]: Toolchain (without parser) took 6694.17 ms. Allocated memory was 148.4 MB in the beginning and 279.4 MB in the end (delta: 131.1 MB). Free memory was 103.1 MB in the beginning and 178.6 MB in the end (delta: -75.5 MB). Peak memory consumption was 55.6 MB. Max. memory is 7.1 GB. [2020-09-15 23:44:39,302 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-15 23:44:39,302 INFO L168 Benchmark]: CACSL2BoogieTranslator took 793.87 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 102.4 MB in the beginning and 161.7 MB in the end (delta: -59.3 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-09-15 23:44:39,303 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.56 ms. Allocated memory is still 204.5 MB. Free memory was 161.7 MB in the beginning and 159.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-15 23:44:39,307 INFO L168 Benchmark]: Boogie Preprocessor took 34.05 ms. Allocated memory is still 204.5 MB. Free memory was 159.7 MB in the beginning and 157.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-15 23:44:39,311 INFO L168 Benchmark]: RCFGBuilder took 549.35 ms. Allocated memory is still 204.5 MB. Free memory was 157.8 MB in the beginning and 134.1 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-09-15 23:44:39,315 INFO L168 Benchmark]: TraceAbstraction took 5248.73 ms. Allocated memory was 204.5 MB in the beginning and 279.4 MB in the end (delta: 75.0 MB). Free memory was 133.4 MB in the beginning and 178.6 MB in the end (delta: -45.1 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2020-09-15 23:44:39,318 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 793.87 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 102.4 MB in the beginning and 161.7 MB in the end (delta: -59.3 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.56 ms. Allocated memory is still 204.5 MB. Free memory was 161.7 MB in the beginning and 159.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.05 ms. Allocated memory is still 204.5 MB. Free memory was 159.7 MB in the beginning and 157.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 549.35 ms. Allocated memory is still 204.5 MB. Free memory was 157.8 MB in the beginning and 134.1 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5248.73 ms. Allocated memory was 204.5 MB in the beginning and 279.4 MB in the end (delta: 75.0 MB). Free memory was 133.4 MB in the beginning and 178.6 MB in the end (delta: -45.1 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 91 ProgramPointsBefore, 39 ProgramPointsAfterwards, 80 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 927 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2895 CheckedPairsTotal, 62 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.0s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 350 SDtfs, 278 SDslu, 573 SDs, 0 SdLazy, 205 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 195 GetRequests, 131 SyntacticMatches, 14 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 114 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 6980 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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...