/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/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:54:33,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:54:33,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:54:33,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:54:33,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:54:33,072 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:54:33,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:54:33,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:54:33,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:54:33,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:54:33,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:54:33,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:54:33,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:54:33,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:54:33,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:54:33,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:54:33,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:54:33,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:54:33,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:54:33,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:54:33,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:54:33,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:54:33,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:54:33,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:54:33,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:54:33,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:54:33,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:54:33,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:54:33,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:54:33,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:54:33,098 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:54:33,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:54:33,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:54:33,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:54:33,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:54:33,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:54:33,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:54:33,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:54:33,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:54:33,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:54:33,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:54:33,104 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 02:54:33,127 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:54:33,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:54:33,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:54:33,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:54:33,129 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:54:33,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:54:33,129 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:54:33,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:54:33,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:54:33,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:54:33,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:54:33,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:54:33,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:54:33,131 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:54:33,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:54:33,131 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:54:33,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:54:33,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:54:33,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:54:33,132 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:54:33,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:54:33,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:54:33,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:54:33,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:54:33,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:54:33,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:54:33,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:54:33,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:54:33,133 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:54:33,134 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:54:33,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:54:33,465 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:54:33,471 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:54:33,474 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:54:33,474 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:54:33,475 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 02:54:33,548 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83d0aec49/54db411d7a6c49fdb3ca2a21ace6b348/FLAG35be14613 [2020-10-15 02:54:34,079 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:54:34,079 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 02:54:34,099 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83d0aec49/54db411d7a6c49fdb3ca2a21ace6b348/FLAG35be14613 [2020-10-15 02:54:34,340 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83d0aec49/54db411d7a6c49fdb3ca2a21ace6b348 [2020-10-15 02:54:34,351 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:54:34,353 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:54:34,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:54:34,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:54:34,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:54:34,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:54:34" (1/1) ... [2020-10-15 02:54:34,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ec48d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:54:34, skipping insertion in model container [2020-10-15 02:54:34,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:54:34" (1/1) ... [2020-10-15 02:54:34,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:54:34,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:54:35,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:54:35,091 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:54:35,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:54:35,341 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:54:35,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:54:35 WrapperNode [2020-10-15 02:54:35,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:54:35,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:54:35,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:54:35,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:54:35,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:54:35" (1/1) ... [2020-10-15 02:54:35,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:54:35" (1/1) ... [2020-10-15 02:54:35,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:54:35" (1/1) ... [2020-10-15 02:54:35,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:54:35" (1/1) ... [2020-10-15 02:54:35,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:54:35" (1/1) ... [2020-10-15 02:54:35,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:54:35" (1/1) ... [2020-10-15 02:54:35,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:54:35" (1/1) ... [2020-10-15 02:54:35,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:54:35,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:54:35,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:54:35,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:54:35,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:54:35" (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 [2020-10-15 02:54:35,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:54:35,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:54:35,592 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:54:35,592 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:54:35,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:54:35,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:54:35,594 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 02:54:35,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:54:35,595 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:54:35,596 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:54:35,596 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:54:35,596 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:54:35,596 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:54:35,597 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:54:35,597 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:54:35,598 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:54:35,598 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:54:35,598 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:54:35,599 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:54:35,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:54:35,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:54:37,202 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:54:37,202 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 02:54:37,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:54:37 BoogieIcfgContainer [2020-10-15 02:54:37,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:54:37,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:54:37,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:54:37,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:54:37,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:54:34" (1/3) ... [2020-10-15 02:54:37,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2892ae32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:54:37, skipping insertion in model container [2020-10-15 02:54:37,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:54:35" (2/3) ... [2020-10-15 02:54:37,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2892ae32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:54:37, skipping insertion in model container [2020-10-15 02:54:37,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:54:37" (3/3) ... [2020-10-15 02:54:37,224 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 02:54:37,236 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:54:37,249 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-15 02:54:37,265 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 02:54:37,303 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:54:37,303 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:54:37,303 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:54:37,303 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:54:37,303 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:54:37,303 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:54:37,303 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:54:37,304 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:54:37,332 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states. [2020-10-15 02:54:37,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-15 02:54:37,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:54:37,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:54:37,350 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:54:37,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:54:37,356 INFO L82 PathProgramCache]: Analyzing trace with hash -731921028, now seen corresponding path program 1 times [2020-10-15 02:54:37,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:54:37,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358155804] [2020-10-15 02:54:37,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:54:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:54:38,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:38,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:38,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:38,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:38,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:38,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:38,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:38,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:39,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:39,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:39,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:39,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:41,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:42,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:54:42,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-15 02:54:42,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 02:54:42,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-15 02:54:42,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:54:42,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:54:42,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:54:42,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-15 02:54:42,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-15 02:54:42,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-15 02:54:43,261 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 02:54:43,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:54:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:54:43,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:43,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:54:43,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:54:43,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:54:43,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:54:43,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:54:43,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:54:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:54:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:54:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:54:43,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:54:43,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:54:43,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358155804] [2020-10-15 02:54:43,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:54:43,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 02:54:43,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528744347] [2020-10-15 02:54:43,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 02:54:43,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:54:43,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 02:54:43,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 02:54:43,354 INFO L87 Difference]: Start difference. First operand 387 states. Second operand 4 states. [2020-10-15 02:54:43,640 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:54:46,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:54:46,094 INFO L93 Difference]: Finished difference Result 708 states and 1251 transitions. [2020-10-15 02:54:46,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:54:46,097 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 139 [2020-10-15 02:54:46,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:54:46,116 INFO L225 Difference]: With dead ends: 708 [2020-10-15 02:54:46,117 INFO L226 Difference]: Without dead ends: 553 [2020-10-15 02:54:46,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:54:46,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2020-10-15 02:54:46,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 551. [2020-10-15 02:54:46,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2020-10-15 02:54:46,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 806 transitions. [2020-10-15 02:54:46,233 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 806 transitions. Word has length 139 [2020-10-15 02:54:46,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:54:46,235 INFO L479 AbstractCegarLoop]: Abstraction has 551 states and 806 transitions. [2020-10-15 02:54:46,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 02:54:46,235 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 806 transitions. [2020-10-15 02:54:46,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-15 02:54:46,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:54:46,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:54:46,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:54:46,243 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:54:46,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:54:46,247 INFO L82 PathProgramCache]: Analyzing trace with hash 807798716, now seen corresponding path program 1 times [2020-10-15 02:54:46,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:54:46,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042132791] [2020-10-15 02:54:46,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:54:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:54:46,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:46,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:46,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:46,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:46,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:46,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:46,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:46,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:47,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:47,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:47,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:47,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:48,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:50,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:50,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:51,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:51,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:54:51,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-15 02:54:51,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 02:54:51,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:54:51,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:54:51,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:54:51,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:54:51,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-15 02:54:51,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-15 02:54:51,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:54:51,646 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 02:54:51,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:54:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:54:51,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:51,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:54:51,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:54:51,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:54:51,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:54:51,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:54:51,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:54:51,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:54:51,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:54:51,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:54:51,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:54:51,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:54:51,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2042132791] [2020-10-15 02:54:51,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:54:51,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 02:54:51,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349111894] [2020-10-15 02:54:51,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 02:54:51,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:54:51,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 02:54:51,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 02:54:51,735 INFO L87 Difference]: Start difference. First operand 551 states and 806 transitions. Second operand 4 states. [2020-10-15 02:54:51,965 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:54:53,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:54:53,880 INFO L93 Difference]: Finished difference Result 1108 states and 1675 transitions. [2020-10-15 02:54:53,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:54:53,882 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 139 [2020-10-15 02:54:53,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:54:53,889 INFO L225 Difference]: With dead ends: 1108 [2020-10-15 02:54:53,890 INFO L226 Difference]: Without dead ends: 891 [2020-10-15 02:54:53,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:54:53,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2020-10-15 02:54:53,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 889. [2020-10-15 02:54:53,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 889 states. [2020-10-15 02:54:53,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1322 transitions. [2020-10-15 02:54:53,941 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1322 transitions. Word has length 139 [2020-10-15 02:54:53,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:54:53,942 INFO L479 AbstractCegarLoop]: Abstraction has 889 states and 1322 transitions. [2020-10-15 02:54:53,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 02:54:53,942 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1322 transitions. [2020-10-15 02:54:53,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-15 02:54:53,946 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:54:53,946 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:54:53,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:54:53,946 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:54:53,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:54:53,947 INFO L82 PathProgramCache]: Analyzing trace with hash -332552132, now seen corresponding path program 1 times [2020-10-15 02:54:53,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:54:53,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1137001636] [2020-10-15 02:54:53,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:54:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:54:54,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:54,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:54,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:54,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:54,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:54,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:54,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:54,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:54,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:54,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:54,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:55,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:55,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:58,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:58,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:58,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:59,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:54:59,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-15 02:54:59,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 02:54:59,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-15 02:54:59,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:54:59,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:54:59,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:54:59,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:54:59,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-15 02:54:59,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:54:59,401 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 02:54:59,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:54:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:54:59,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:54:59,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:54:59,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:54:59,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:54:59,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:54:59,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:54:59,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:54:59,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:54:59,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:54:59,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:54:59,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:54:59,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:54:59,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1137001636] [2020-10-15 02:54:59,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:54:59,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:54:59,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688084770] [2020-10-15 02:54:59,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:54:59,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:54:59,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:54:59,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:54:59,492 INFO L87 Difference]: Start difference. First operand 889 states and 1322 transitions. Second operand 5 states. [2020-10-15 02:55:01,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:55:01,910 INFO L93 Difference]: Finished difference Result 2581 states and 3829 transitions. [2020-10-15 02:55:01,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:55:01,911 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2020-10-15 02:55:01,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:55:01,925 INFO L225 Difference]: With dead ends: 2581 [2020-10-15 02:55:01,925 INFO L226 Difference]: Without dead ends: 1713 [2020-10-15 02:55:01,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:55:01,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2020-10-15 02:55:02,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1685. [2020-10-15 02:55:02,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1685 states. [2020-10-15 02:55:02,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 2492 transitions. [2020-10-15 02:55:02,025 INFO L78 Accepts]: Start accepts. Automaton has 1685 states and 2492 transitions. Word has length 139 [2020-10-15 02:55:02,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:55:02,026 INFO L479 AbstractCegarLoop]: Abstraction has 1685 states and 2492 transitions. [2020-10-15 02:55:02,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:55:02,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states and 2492 transitions. [2020-10-15 02:55:02,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-15 02:55:02,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:55:02,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:55:02,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:55:02,031 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:55:02,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:55:02,031 INFO L82 PathProgramCache]: Analyzing trace with hash -429726934, now seen corresponding path program 1 times [2020-10-15 02:55:02,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:55:02,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754494857] [2020-10-15 02:55:02,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:55:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:55:02,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:02,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:02,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:02,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:02,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:02,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:02,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:02,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:02,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:03,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:03,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:07,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:55:07,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-15 02:55:07,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 02:55:07,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 02:55:07,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:55:07,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:55:07,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:55:07,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:55:07,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-15 02:55:07,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:55:07,490 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 02:55:07,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:55:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:55:07,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:07,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:55:07,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:55:07,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:55:07,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 02:55:07,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:55:07,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:55:07,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:55:07,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:55:07,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:55:07,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:55:07,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:55:07,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754494857] [2020-10-15 02:55:07,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:55:07,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:55:07,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996622799] [2020-10-15 02:55:07,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:55:07,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:55:07,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:55:07,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:55:07,636 INFO L87 Difference]: Start difference. First operand 1685 states and 2492 transitions. Second operand 5 states. [2020-10-15 02:55:11,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:55:11,263 INFO L93 Difference]: Finished difference Result 4444 states and 6569 transitions. [2020-10-15 02:55:11,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:55:11,264 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2020-10-15 02:55:11,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:55:11,281 INFO L225 Difference]: With dead ends: 4444 [2020-10-15 02:55:11,281 INFO L226 Difference]: Without dead ends: 2907 [2020-10-15 02:55:11,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:55:11,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2020-10-15 02:55:11,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 2879. [2020-10-15 02:55:11,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2879 states. [2020-10-15 02:55:11,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2879 states to 2879 states and 4211 transitions. [2020-10-15 02:55:11,457 INFO L78 Accepts]: Start accepts. Automaton has 2879 states and 4211 transitions. Word has length 140 [2020-10-15 02:55:11,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:55:11,457 INFO L479 AbstractCegarLoop]: Abstraction has 2879 states and 4211 transitions. [2020-10-15 02:55:11,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:55:11,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2879 states and 4211 transitions. [2020-10-15 02:55:11,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-15 02:55:11,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:55:11,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:55:11,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:55:11,463 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:55:11,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:55:11,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1624002054, now seen corresponding path program 1 times [2020-10-15 02:55:11,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:55:11,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335314251] [2020-10-15 02:55:11,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:55:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:55:11,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:11,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:11,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:11,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:11,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:11,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:12,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:12,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:12,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:12,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:12,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:14,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:14,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:14,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:16,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:55:16,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-15 02:55:16,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 02:55:16,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:55:16,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:55:16,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:55:16,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:55:16,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:55:16,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-15 02:55:16,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:55:16,865 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 02:55:16,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:55:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:55:16,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:16,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:55:16,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:55:16,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:55:16,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:55:16,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:55:16,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:55:16,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:55:16,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:55:16,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:55:16,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:55:16,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:55:16,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335314251] [2020-10-15 02:55:16,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:55:16,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:55:16,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896380890] [2020-10-15 02:55:16,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:55:16,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:55:16,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:55:16,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:55:16,976 INFO L87 Difference]: Start difference. First operand 2879 states and 4211 transitions. Second operand 5 states. [2020-10-15 02:55:19,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:55:19,991 INFO L93 Difference]: Finished difference Result 8448 states and 12332 transitions. [2020-10-15 02:55:19,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:55:19,996 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-10-15 02:55:19,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:55:20,023 INFO L225 Difference]: With dead ends: 8448 [2020-10-15 02:55:20,023 INFO L226 Difference]: Without dead ends: 5580 [2020-10-15 02:55:20,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:55:20,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5580 states. [2020-10-15 02:55:20,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5580 to 5558. [2020-10-15 02:55:20,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5558 states. [2020-10-15 02:55:20,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5558 states to 5558 states and 8042 transitions. [2020-10-15 02:55:20,342 INFO L78 Accepts]: Start accepts. Automaton has 5558 states and 8042 transitions. Word has length 141 [2020-10-15 02:55:20,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:55:20,342 INFO L479 AbstractCegarLoop]: Abstraction has 5558 states and 8042 transitions. [2020-10-15 02:55:20,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:55:20,343 INFO L276 IsEmpty]: Start isEmpty. Operand 5558 states and 8042 transitions. [2020-10-15 02:55:20,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-15 02:55:20,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:55:20,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:55:20,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:55:20,352 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:55:20,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:55:20,352 INFO L82 PathProgramCache]: Analyzing trace with hash 2122457289, now seen corresponding path program 1 times [2020-10-15 02:55:20,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:55:20,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809724796] [2020-10-15 02:55:20,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:55:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:55:20,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:20,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:20,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:20,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:20,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:21,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:21,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:21,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:21,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:21,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:22,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:22,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:23,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:23,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:23,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:25,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:55:25,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-15 02:55:25,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 02:55:25,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-15 02:55:25,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:55:25,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:55:25,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:55:25,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:55:25,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-15 02:55:25,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:55:25,655 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 02:55:25,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:55:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:55:25,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:25,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:55:25,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:55:25,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:55:25,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:55:25,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:55:25,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:55:25,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:55:25,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:55:25,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:55:25,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:55:25,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:55:25,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809724796] [2020-10-15 02:55:25,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:55:25,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:55:25,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947640629] [2020-10-15 02:55:25,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:55:25,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:55:25,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:55:25,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:55:25,734 INFO L87 Difference]: Start difference. First operand 5558 states and 8042 transitions. Second operand 5 states. [2020-10-15 02:55:28,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:55:28,925 INFO L93 Difference]: Finished difference Result 16189 states and 23341 transitions. [2020-10-15 02:55:28,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:55:28,926 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-10-15 02:55:28,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:55:28,973 INFO L225 Difference]: With dead ends: 16189 [2020-10-15 02:55:28,974 INFO L226 Difference]: Without dead ends: 10716 [2020-10-15 02:55:28,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:55:29,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10716 states. [2020-10-15 02:55:29,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10716 to 10683. [2020-10-15 02:55:29,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10683 states. [2020-10-15 02:55:29,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10683 states to 10683 states and 15239 transitions. [2020-10-15 02:55:29,510 INFO L78 Accepts]: Start accepts. Automaton has 10683 states and 15239 transitions. Word has length 142 [2020-10-15 02:55:29,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:55:29,510 INFO L479 AbstractCegarLoop]: Abstraction has 10683 states and 15239 transitions. [2020-10-15 02:55:29,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:55:29,511 INFO L276 IsEmpty]: Start isEmpty. Operand 10683 states and 15239 transitions. [2020-10-15 02:55:29,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-15 02:55:29,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:55:29,527 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:55:29,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:55:29,527 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:55:29,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:55:29,528 INFO L82 PathProgramCache]: Analyzing trace with hash 857427930, now seen corresponding path program 1 times [2020-10-15 02:55:29,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:55:29,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276924775] [2020-10-15 02:55:29,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:55:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:55:29,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:29,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:29,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:29,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:29,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:29,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:29,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:30,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:31,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:31,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:31,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:55:31,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-15 02:55:31,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 02:55:31,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2428 [2020-10-15 02:55:31,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:55:31,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:55:31,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:55:31,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:55:31,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-15 02:55:31,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:55:32,250 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 02:55:32,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:55:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:55:32,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:32,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:55:32,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:55:32,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:55:32,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:55:32,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:55:32,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:55:32,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:55:32,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:55:32,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:55:32,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:55:32,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:55:32,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276924775] [2020-10-15 02:55:32,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:55:32,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:55:32,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334647199] [2020-10-15 02:55:32,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:55:32,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:55:32,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:55:32,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:55:32,329 INFO L87 Difference]: Start difference. First operand 10683 states and 15239 transitions. Second operand 5 states. [2020-10-15 02:55:35,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:55:35,836 INFO L93 Difference]: Finished difference Result 31243 states and 44432 transitions. [2020-10-15 02:55:35,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:55:35,837 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-10-15 02:55:35,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:55:35,893 INFO L225 Difference]: With dead ends: 31243 [2020-10-15 02:55:35,893 INFO L226 Difference]: Without dead ends: 20607 [2020-10-15 02:55:35,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:55:35,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20607 states. [2020-10-15 02:55:37,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20607 to 20587. [2020-10-15 02:55:37,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20587 states. [2020-10-15 02:55:37,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20587 states to 20587 states and 28958 transitions. [2020-10-15 02:55:37,467 INFO L78 Accepts]: Start accepts. Automaton has 20587 states and 28958 transitions. Word has length 143 [2020-10-15 02:55:37,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:55:37,468 INFO L479 AbstractCegarLoop]: Abstraction has 20587 states and 28958 transitions. [2020-10-15 02:55:37,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:55:37,468 INFO L276 IsEmpty]: Start isEmpty. Operand 20587 states and 28958 transitions. [2020-10-15 02:55:37,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-15 02:55:37,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:55:37,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:55:37,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:55:37,490 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:55:37,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:55:37,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1756207479, now seen corresponding path program 1 times [2020-10-15 02:55:37,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:55:37,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [798048546] [2020-10-15 02:55:37,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:55:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:55:37,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:37,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:37,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:37,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:37,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:38,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:55:38,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-15 02:55:38,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:55:38,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 548 [2020-10-15 02:55:38,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:55:38,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:55:38,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:55:38,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:55:38,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-15 02:55:38,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:55:38,368 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 02:55:38,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:55:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:55:38,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:55:38,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:55:38,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:55:38,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:55:38,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:55:38,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:55:38,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:55:38,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:55:38,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:55:38,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:55:38,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:55:38,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:55:38,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [798048546] [2020-10-15 02:55:38,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:55:38,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:55:38,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608138884] [2020-10-15 02:55:38,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:55:38,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:55:38,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:55:38,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:55:38,449 INFO L87 Difference]: Start difference. First operand 20587 states and 28958 transitions. Second operand 5 states. [2020-10-15 02:55:42,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:55:42,534 INFO L93 Difference]: Finished difference Result 54954 states and 77082 transitions. [2020-10-15 02:55:42,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:55:42,535 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 144 [2020-10-15 02:55:42,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:55:42,605 INFO L225 Difference]: With dead ends: 54954 [2020-10-15 02:55:42,605 INFO L226 Difference]: Without dead ends: 35293 [2020-10-15 02:55:42,651 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:55:42,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35293 states. [2020-10-15 02:55:44,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35293 to 35248. [2020-10-15 02:55:44,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35248 states. [2020-10-15 02:55:44,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35248 states to 35248 states and 48628 transitions. [2020-10-15 02:55:44,375 INFO L78 Accepts]: Start accepts. Automaton has 35248 states and 48628 transitions. Word has length 144 [2020-10-15 02:55:44,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:55:44,375 INFO L479 AbstractCegarLoop]: Abstraction has 35248 states and 48628 transitions. [2020-10-15 02:55:44,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:55:44,375 INFO L276 IsEmpty]: Start isEmpty. Operand 35248 states and 48628 transitions. [2020-10-15 02:55:44,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-15 02:55:44,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:55:44,407 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:55:44,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:55:44,407 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:55:44,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:55:44,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1320083815, now seen corresponding path program 1 times [2020-10-15 02:55:44,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:55:44,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [626834955] [2020-10-15 02:55:44,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:55:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 02:55:44,464 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-15 02:55:44,465 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 02:55:44,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:55:44,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 02:55:44 BoogieIcfgContainer [2020-10-15 02:55:44,555 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 02:55:44,557 INFO L168 Benchmark]: Toolchain (without parser) took 70203.79 ms. Allocated memory was 146.8 MB in the beginning and 1.6 GB in the end (delta: 1.5 GB). Free memory was 101.8 MB in the beginning and 299.8 MB in the end (delta: -198.0 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-15 02:55:44,558 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 120.9 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-10-15 02:55:44,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 988.93 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.4 MB in the beginning and 165.8 MB in the end (delta: -64.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2020-10-15 02:55:44,560 INFO L168 Benchmark]: Boogie Preprocessor took 154.27 ms. Allocated memory is still 204.5 MB. Free memory was 165.8 MB in the beginning and 161.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-10-15 02:55:44,565 INFO L168 Benchmark]: RCFGBuilder took 1712.08 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 160.6 MB in the beginning and 113.1 MB in the end (delta: 47.5 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. [2020-10-15 02:55:44,569 INFO L168 Benchmark]: TraceAbstraction took 67343.26 ms. Allocated memory was 237.5 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 113.1 MB in the beginning and 299.8 MB in the end (delta: -186.7 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2020-10-15 02:55:44,579 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 120.9 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 988.93 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.4 MB in the beginning and 165.8 MB in the end (delta: -64.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 154.27 ms. Allocated memory is still 204.5 MB. Free memory was 165.8 MB in the beginning and 161.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1712.08 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 160.6 MB in the beginning and 113.1 MB in the end (delta: 47.5 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 67343.26 ms. Allocated memory was 237.5 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 113.1 MB in the beginning and 299.8 MB in the end (delta: -186.7 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 814]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1] int __return_main; [L15] msg_t nomsg = (msg_t )-1; [L16] port_t p12 = 0; [L17] char p12_old = '\x0'; [L18] char p12_new = '\x0'; [L19] _Bool ep12 = 0; [L20] port_t p13 = 0; [L21] char p13_old = '\x0'; [L22] char p13_new = '\x0'; [L23] _Bool ep13 = 0; [L24] port_t p21 = 0; [L25] char p21_old = '\x0'; [L26] char p21_new = '\x0'; [L27] _Bool ep21 = 0; [L28] port_t p23 = 0; [L29] char p23_old = '\x0'; [L30] char p23_new = '\x0'; [L31] _Bool ep23 = 0; [L32] port_t p31 = 0; [L33] char p31_old = '\x0'; [L34] char p31_new = '\x0'; [L35] _Bool ep31 = 0; [L36] port_t p32 = 0; [L37] char p32_old = '\x0'; [L38] char p32_new = '\x0'; [L39] _Bool ep32 = 0; [L40] char id1 = '\x0'; [L41] unsigned char r1 = '\x0'; [L42] char st1 = '\x0'; [L43] char nl1 = '\x0'; [L44] char m1 = '\x0'; [L45] char max1 = '\x0'; [L46] _Bool mode1 = 0; [L47] char id2 = '\x0'; [L48] unsigned char r2 = '\x0'; [L49] char st2 = '\x0'; [L50] char nl2 = '\x0'; [L51] char m2 = '\x0'; [L52] char max2 = '\x0'; [L53] _Bool mode2 = 0; [L54] char id3 = '\x0'; [L55] unsigned char r3 = '\x0'; [L56] char st3 = '\x0'; [L57] char nl3 = '\x0'; [L58] char m3 = '\x0'; [L59] char max3 = '\x0'; [L60] _Bool mode3 = 0; [L64] void (*nodes[3])() = { &node1, &node2, &node3 }; [L68] int __return_1718; [L69] int __return_1846; [L70] int __return_1964; [L71] int __return_2082; [L72] int __return_2816; [L73] int __return_2785; [L74] int __return_2726; [L75] int __return_2692; [L76] int __return_2315; [L77] int __return_2587; [L78] int __return_2553; [L79] int __return_2473; [L80] int __return_2205; [L83] int main__c1; [L84] int main__i2; [L85] main__c1 = 0 [L86] ep12 = __VERIFIER_nondet_bool() [L87] ep13 = __VERIFIER_nondet_bool() [L88] ep21 = __VERIFIER_nondet_bool() [L89] ep23 = __VERIFIER_nondet_bool() [L90] ep31 = __VERIFIER_nondet_bool() [L91] ep32 = __VERIFIER_nondet_bool() [L92] id1 = __VERIFIER_nondet_char() [L93] r1 = __VERIFIER_nondet_uchar() [L94] st1 = __VERIFIER_nondet_char() [L95] nl1 = __VERIFIER_nondet_char() [L96] m1 = __VERIFIER_nondet_char() [L97] max1 = __VERIFIER_nondet_char() [L98] mode1 = __VERIFIER_nondet_bool() [L99] id2 = __VERIFIER_nondet_char() [L100] r2 = __VERIFIER_nondet_uchar() [L101] st2 = __VERIFIER_nondet_char() [L102] nl2 = __VERIFIER_nondet_char() [L103] m2 = __VERIFIER_nondet_char() [L104] max2 = __VERIFIER_nondet_char() [L105] mode2 = __VERIFIER_nondet_bool() [L106] id3 = __VERIFIER_nondet_char() [L107] r3 = __VERIFIER_nondet_uchar() [L108] st3 = __VERIFIER_nondet_char() [L109] nl3 = __VERIFIER_nondet_char() [L110] m3 = __VERIFIER_nondet_char() [L111] max3 = __VERIFIER_nondet_char() [L112] mode3 = __VERIFIER_nondet_bool() [L114] _Bool init__r121; [L115] _Bool init__r131; [L116] _Bool init__r211; [L117] _Bool init__r231; [L118] _Bool init__r311; [L119] _Bool init__r321; [L120] _Bool init__r122; [L121] int init__tmp; [L122] _Bool init__r132; [L123] int init__tmp___0; [L124] _Bool init__r212; [L125] int init__tmp___1; [L126] _Bool init__r232; [L127] int init__tmp___2; [L128] _Bool init__r312; [L129] int init__tmp___3; [L130] _Bool init__r322; [L131] int init__tmp___4; [L132] int init__tmp___5; [L133] init__r121 = ep12 [L134] init__r131 = ep13 [L135] init__r211 = ep21 [L136] init__r231 = ep23 [L137] init__r311 = ep31 [L138] init__r321 = ep32 [L139] COND FALSE !(!(init__r121 == 0)) [L2956] COND FALSE !(!(init__r131 == 0)) [L2972] init__tmp = 0 [L143] init__r122 = (_Bool)init__tmp [L144] COND FALSE !(!(init__r131 == 0)) [L2933] COND FALSE !(!(init__r121 == 0)) [L2949] init__tmp___0 = 0 [L148] init__r132 = (_Bool)init__tmp___0 [L149] COND FALSE !(!(init__r211 == 0)) [L2910] COND FALSE !(!(init__r231 == 0)) [L2926] init__tmp___1 = 0 [L153] init__r212 = (_Bool)init__tmp___1 [L154] COND FALSE !(!(init__r231 == 0)) [L2887] COND FALSE !(!(init__r211 == 0)) [L2903] init__tmp___2 = 0 [L158] init__r232 = (_Bool)init__tmp___2 [L159] COND FALSE !(!(init__r311 == 0)) [L2864] COND FALSE !(!(init__r321 == 0)) [L2880] init__tmp___3 = 0 [L163] init__r312 = (_Bool)init__tmp___3 [L164] COND FALSE !(!(init__r321 == 0)) [L2841] COND FALSE !(!(init__r311 == 0)) [L2857] init__tmp___4 = 0 [L168] init__r322 = (_Bool)init__tmp___4 [L169] COND TRUE ((int)id1) != ((int)id2) [L171] COND TRUE ((int)id1) != ((int)id3) [L173] COND TRUE ((int)id2) != ((int)id3) [L175] COND TRUE ((int)id1) >= 0 [L177] COND TRUE ((int)id2) >= 0 [L179] COND TRUE ((int)id3) >= 0 [L181] COND TRUE ((int)r1) == 0 [L183] COND TRUE ((int)r2) == 0 [L185] COND TRUE ((int)r3) == 0 [L187] COND TRUE ((int)max1) == ((int)id1) [L189] COND TRUE ((int)max2) == ((int)id2) [L191] COND TRUE ((int)max3) == ((int)id3) [L193] COND TRUE ((int)st1) == 0 [L195] COND TRUE ((int)st2) == 0 [L197] COND TRUE ((int)st3) == 0 [L199] COND TRUE ((int)nl1) == 0 [L201] COND TRUE ((int)nl2) == 0 [L203] COND TRUE ((int)nl3) == 0 [L205] COND TRUE ((int)mode1) == 0 [L207] COND TRUE ((int)mode2) == 0 [L209] COND TRUE ((int)mode3) == 0 [L211] init__tmp___5 = 1 [L212] __return_1718 = init__tmp___5 [L213] main__i2 = __return_1718 [L214] COND TRUE main__i2 != 0 [L216] p12_old = nomsg [L217] p12_new = nomsg [L218] p13_old = nomsg [L219] p13_new = nomsg [L220] p21_old = nomsg [L221] p21_new = nomsg [L222] p23_old = nomsg [L223] p23_new = nomsg [L224] p31_old = nomsg [L225] p31_new = nomsg [L226] p32_old = nomsg [L227] p32_new = nomsg [L228] main__i2 = 0 [L230] COND FALSE !(!(mode1 == 0)) [L236] COND TRUE ((int)r1) < 2 [L238] COND FALSE !(!(ep12 == 0)) [L249] COND FALSE !(!(ep13 == 0)) [L260] mode1 = 1 [L262] COND FALSE !(!(mode2 == 0)) [L268] COND TRUE ((int)r2) < 2 [L270] COND FALSE !(!(ep21 == 0)) [L281] COND FALSE !(!(ep23 == 0)) [L292] mode2 = 1 [L294] COND FALSE !(!(mode3 == 0)) [L300] COND TRUE ((int)r3) < 2 [L302] COND FALSE !(!(ep31 == 0)) [L313] COND FALSE !(!(ep32 == 0)) [L324] mode3 = 1 [L325] p12_old = p12_new [L326] p12_new = nomsg [L327] p13_old = p13_new [L328] p13_new = nomsg [L329] p21_old = p21_new [L330] p21_new = nomsg [L331] p23_old = p23_new [L332] p23_new = nomsg [L333] p31_old = p31_new [L334] p31_new = nomsg [L335] p32_old = p32_new [L336] p32_new = nomsg [L338] int check__tmp; [L339] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1 [L341] COND TRUE (((int)st1) + ((int)nl1)) <= 1 [L343] COND TRUE (((int)st2) + ((int)nl2)) <= 1 [L345] COND TRUE (((int)st3) + ((int)nl3)) <= 1 [L347] COND FALSE !(((int)r1) >= 2) [L353] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) == 0 [L355] COND TRUE ((int)r1) < 2 [L357] COND FALSE !(((int)r1) >= 2) [L363] COND TRUE ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0 [L365] COND TRUE ((int)r1) < 2 [L367] check__tmp = 1 [L368] __return_1846 = check__tmp [L369] main__c1 = __return_1846 [L371] _Bool __tmp_1; [L372] __tmp_1 = main__c1 [L373] _Bool assert__arg; [L374] assert__arg = __tmp_1 [L375] COND FALSE !(assert__arg == 0) [L382] COND TRUE !(mode1 == 0) [L384] COND FALSE !(r1 == 255) [L390] r1 = r1 + 1 [L391] COND FALSE !(!(ep21 == 0)) [L399] COND FALSE !(!(ep31 == 0)) [L407] COND FALSE !(((int)r1) == 2) [L413] mode1 = 0 [L415] COND TRUE !(mode2 == 0) [L417] COND FALSE !(r2 == 255) [L423] r2 = r2 + 1 [L424] COND FALSE !(!(ep12 == 0)) [L432] COND FALSE !(!(ep32 == 0)) [L440] COND FALSE !(((int)r2) == 2) [L446] mode2 = 0 [L448] COND TRUE !(mode3 == 0) [L450] COND FALSE !(r3 == 255) [L456] r3 = r3 + 1 [L457] COND FALSE !(!(ep13 == 0)) [L465] COND FALSE !(!(ep23 == 0)) [L473] COND FALSE !(((int)r3) == 2) [L479] mode3 = 0 [L480] p12_old = p12_new [L481] p12_new = nomsg [L482] p13_old = p13_new [L483] p13_new = nomsg [L484] p21_old = p21_new [L485] p21_new = nomsg [L486] p23_old = p23_new [L487] p23_new = nomsg [L488] p31_old = p31_new [L489] p31_new = nomsg [L490] p32_old = p32_new [L491] p32_new = nomsg [L493] int check__tmp; [L494] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1 [L496] COND TRUE (((int)st1) + ((int)nl1)) <= 1 [L498] COND TRUE (((int)st2) + ((int)nl2)) <= 1 [L500] COND TRUE (((int)st3) + ((int)nl3)) <= 1 [L502] COND FALSE !(((int)r1) >= 2) [L508] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) == 0 [L510] COND TRUE ((int)r1) < 2 [L512] COND FALSE !(((int)r1) >= 2) [L518] COND TRUE ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0 [L520] COND TRUE ((int)r1) < 2 [L522] check__tmp = 1 [L523] __return_1964 = check__tmp [L524] main__c1 = __return_1964 [L526] _Bool __tmp_2; [L527] __tmp_2 = main__c1 [L528] _Bool assert__arg; [L529] assert__arg = __tmp_2 [L530] COND FALSE !(assert__arg == 0) [L537] COND FALSE !(!(mode1 == 0)) [L543] COND TRUE ((int)r1) < 2 [L545] COND FALSE !(!(ep12 == 0)) [L556] COND FALSE !(!(ep13 == 0)) [L567] mode1 = 1 [L569] COND FALSE !(!(mode2 == 0)) [L575] COND TRUE ((int)r2) < 2 [L577] COND FALSE !(!(ep21 == 0)) [L588] COND FALSE !(!(ep23 == 0)) [L599] mode2 = 1 [L601] COND FALSE !(!(mode3 == 0)) [L607] COND TRUE ((int)r3) < 2 [L609] COND FALSE !(!(ep31 == 0)) [L620] COND FALSE !(!(ep32 == 0)) [L631] mode3 = 1 [L632] p12_old = p12_new [L633] p12_new = nomsg [L634] p13_old = p13_new [L635] p13_new = nomsg [L636] p21_old = p21_new [L637] p21_new = nomsg [L638] p23_old = p23_new [L639] p23_new = nomsg [L640] p31_old = p31_new [L641] p31_new = nomsg [L642] p32_old = p32_new [L643] p32_new = nomsg [L645] int check__tmp; [L646] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1 [L648] COND TRUE (((int)st1) + ((int)nl1)) <= 1 [L650] COND TRUE (((int)st2) + ((int)nl2)) <= 1 [L652] COND TRUE (((int)st3) + ((int)nl3)) <= 1 [L654] COND FALSE !(((int)r1) >= 2) [L660] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) == 0 [L662] COND TRUE ((int)r1) < 2 [L664] COND FALSE !(((int)r1) >= 2) [L670] COND TRUE ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0 [L672] COND TRUE ((int)r1) < 2 [L674] check__tmp = 1 [L675] __return_2082 = check__tmp [L676] main__c1 = __return_2082 [L678] _Bool __tmp_3; [L679] __tmp_3 = main__c1 [L680] _Bool assert__arg; [L681] assert__arg = __tmp_3 [L682] COND FALSE !(assert__arg == 0) [L689] COND TRUE !(mode1 == 0) [L691] COND FALSE !(r1 == 255) [L697] r1 = r1 + 1 [L698] COND FALSE !(!(ep21 == 0)) [L706] COND FALSE !(!(ep31 == 0)) [L714] COND TRUE ((int)r1) == 2 [L716] COND TRUE ((int)max1) == ((int)id1) [L718] st1 = 1 [L719] mode1 = 0 [L721] COND TRUE !(mode2 == 0) [L723] COND FALSE !(r2 == 255) [L729] r2 = r2 + 1 [L730] COND FALSE !(!(ep12 == 0)) [L738] COND FALSE !(!(ep32 == 0)) [L746] COND TRUE ((int)r2) == 2 [L748] COND TRUE ((int)max2) == ((int)id2) [L750] st2 = 1 [L751] mode2 = 0 [L753] COND TRUE !(mode3 == 0) [L755] COND FALSE !(r3 == 255) [L761] r3 = r3 + 1 [L762] COND FALSE !(!(ep13 == 0)) [L770] COND FALSE !(!(ep23 == 0)) [L778] COND TRUE ((int)r3) == 2 [L780] COND TRUE ((int)max3) == ((int)id3) [L782] st3 = 1 [L783] mode3 = 0 [L784] p12_old = p12_new [L785] p12_new = nomsg [L786] p13_old = p13_new [L787] p13_new = nomsg [L788] p21_old = p21_new [L789] p21_new = nomsg [L790] p23_old = p23_new [L791] p23_new = nomsg [L792] p31_old = p31_new [L793] p31_new = nomsg [L794] p32_old = p32_new [L795] p32_new = nomsg [L797] int check__tmp; [L798] COND FALSE !(((((int)st1) + ((int)st2)) + ((int)st3)) <= 1) [L804] check__tmp = 0 [L805] __return_2816 = check__tmp [L806] main__c1 = __return_2816 [L808] _Bool __tmp_4; [L809] __tmp_4 = main__c1 [L810] _Bool assert__arg; [L811] assert__arg = __tmp_4 [L812] COND TRUE assert__arg == 0 [L814] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 391 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 67.1s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 25.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6730 SDtfs, 7231 SDslu, 3831 SDs, 0 SdLazy, 7330 SolverSat, 121 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35248occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 180 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 36.0s InterpolantComputationTime, 1272 NumberOfCodeBlocks, 1272 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1119 ConstructedInterpolants, 0 QuantifiedInterpolants, 1125183 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...