/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:55:39,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:55:39,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:55:39,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:55:39,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:55:39,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:55:39,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:55:39,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:55:39,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:55:39,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:55:39,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:55:39,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:55:39,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:55:39,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:55:39,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:55:39,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:55:39,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:55:39,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:55:39,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:55:39,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:55:39,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:55:39,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:55:39,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:55:39,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:55:39,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:55:39,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:55:39,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:55:39,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:55:39,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:55:39,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:55:39,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:55:39,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:55:39,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:55:39,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:55:39,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:55:39,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:55:39,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:55:39,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:55:39,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:55:39,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:55:39,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:55:39,253 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 [2020-10-14 08:55:39,274 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:55:39,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:55:39,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:55:39,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:55:39,276 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:55:39,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:55:39,277 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:55:39,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:55:39,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:55:39,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:55:39,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:55:39,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:55:39,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:55:39,278 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:55:39,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:55:39,278 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:55:39,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:55:39,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:55:39,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:55:39,279 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:55:39,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:55:39,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:55:39,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:55:39,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:55:39,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:55:39,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:55:39,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:55:39,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:55:39,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:55:39,281 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 08:55:39,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:55:39,650 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:55:39,654 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:55:39,655 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:55:39,656 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:55:39,656 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-14 08:55:39,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1533da03/3a510f24169d4a338979ca82a2f59966/FLAG2e1c4700d [2020-10-14 08:55:40,505 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:55:40,505 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-14 08:55:40,543 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1533da03/3a510f24169d4a338979ca82a2f59966/FLAG2e1c4700d [2020-10-14 08:55:40,580 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1533da03/3a510f24169d4a338979ca82a2f59966 [2020-10-14 08:55:40,591 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:55:40,593 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:55:40,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:55:40,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:55:40,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:55:40,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:55:40" (1/1) ... [2020-10-14 08:55:40,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335959a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:40, skipping insertion in model container [2020-10-14 08:55:40,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:55:40" (1/1) ... [2020-10-14 08:55:40,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:55:40,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:55:42,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:55:43,010 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:55:44,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:55:44,050 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:55:44,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:44 WrapperNode [2020-10-14 08:55:44,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:55:44,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:55:44,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:55:44,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:55:44,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:44" (1/1) ... [2020-10-14 08:55:44,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:44" (1/1) ... [2020-10-14 08:55:44,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:44" (1/1) ... [2020-10-14 08:55:44,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:44" (1/1) ... [2020-10-14 08:55:44,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:44" (1/1) ... [2020-10-14 08:55:44,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:44" (1/1) ... [2020-10-14 08:55:44,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:44" (1/1) ... [2020-10-14 08:55:44,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:55:44,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:55:44,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:55:44,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:55:44,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:44" (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 [2020-10-14 08:55:44,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:55:44,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:55:44,390 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:55:44,391 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:55:44,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:55:44,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:55:44,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:55:44,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 08:55:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:55:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:55:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:55:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:55:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:55:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:55:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:55:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:55:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 08:55:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-14 08:55:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-14 08:55:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:55:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:55:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:55:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:55:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:55:50,132 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:55:50,133 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 08:55:50,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:55:50 BoogieIcfgContainer [2020-10-14 08:55:50,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:55:50,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:55:50,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:55:50,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:55:50,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:55:40" (1/3) ... [2020-10-14 08:55:50,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@585a6aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:55:50, skipping insertion in model container [2020-10-14 08:55:50,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:44" (2/3) ... [2020-10-14 08:55:50,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@585a6aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:55:50, skipping insertion in model container [2020-10-14 08:55:50,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:55:50" (3/3) ... [2020-10-14 08:55:50,165 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-14 08:55:50,174 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:55:50,185 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2020-10-14 08:55:50,199 INFO L251 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-10-14 08:55:50,233 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:55:50,233 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:55:50,233 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:55:50,233 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:55:50,233 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:55:50,233 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:55:50,234 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:55:50,234 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:55:50,294 INFO L276 IsEmpty]: Start isEmpty. Operand 2353 states. [2020-10-14 08:55:50,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-14 08:55:50,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:55:50,333 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] [2020-10-14 08:55:50,334 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:55:50,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:55:50,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1279682657, now seen corresponding path program 1 times [2020-10-14 08:55:50,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:55:50,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [768342794] [2020-10-14 08:55:50,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:55:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:51,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:51,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:51,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:51,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:51,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:51,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:53,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:55,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:55,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:55,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 08:55:55,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:55:55,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-14 08:55:55,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:55,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:55,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:55:55,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:55:55,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 08:55:55,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 08:55:57,214 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:55:57,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:55:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:57,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:57,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:57,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:55:57,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:55:57,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 08:55:57,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:57,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:57,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:55:57,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:55:57,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:55:57,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:55:57,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:55:57,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [768342794] [2020-10-14 08:55:57,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:55:57,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:55:57,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187762127] [2020-10-14 08:55:57,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:55:57,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:55:57,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:55:57,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:55:57,458 INFO L87 Difference]: Start difference. First operand 2353 states. Second operand 6 states. [2020-10-14 08:55:58,721 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 475 [2020-10-14 08:56:17,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:56:17,203 INFO L93 Difference]: Finished difference Result 3412 states and 5971 transitions. [2020-10-14 08:56:17,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:56:17,208 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2020-10-14 08:56:17,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:56:17,245 INFO L225 Difference]: With dead ends: 3412 [2020-10-14 08:56:17,246 INFO L226 Difference]: Without dead ends: 2309 [2020-10-14 08:56:17,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:56:17,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2020-10-14 08:56:17,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2231. [2020-10-14 08:56:17,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2231 states. [2020-10-14 08:56:17,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2916 transitions. [2020-10-14 08:56:17,421 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2916 transitions. Word has length 90 [2020-10-14 08:56:17,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:56:17,422 INFO L479 AbstractCegarLoop]: Abstraction has 2231 states and 2916 transitions. [2020-10-14 08:56:17,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:56:17,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2916 transitions. [2020-10-14 08:56:17,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-14 08:56:17,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:56:17,431 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] [2020-10-14 08:56:17,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:56:17,432 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:56:17,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:56:17,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1422301979, now seen corresponding path program 1 times [2020-10-14 08:56:17,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:56:17,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524687735] [2020-10-14 08:56:17,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:56:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:17,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:17,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:17,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:17,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:17,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:20,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:20,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:20,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:22,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:22,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 08:56:22,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:56:22,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 08:56:22,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:22,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:22,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:56:22,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:56:22,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 08:56:22,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:56:23,636 WARN L193 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:56:23,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:56:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:23,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:23,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:23,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:56:23,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:56:23,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 08:56:23,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:23,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:23,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:56:23,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:56:23,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:56:23,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:56:23,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:56:23,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524687735] [2020-10-14 08:56:23,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:56:23,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:56:23,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588944173] [2020-10-14 08:56:23,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:56:23,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:56:23,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:56:23,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:56:23,766 INFO L87 Difference]: Start difference. First operand 2231 states and 2916 transitions. Second operand 6 states. [2020-10-14 08:56:25,028 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 475 [2020-10-14 08:56:33,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:56:33,514 INFO L93 Difference]: Finished difference Result 2879 states and 3761 transitions. [2020-10-14 08:56:33,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:56:33,517 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2020-10-14 08:56:33,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:56:33,527 INFO L225 Difference]: With dead ends: 2879 [2020-10-14 08:56:33,527 INFO L226 Difference]: Without dead ends: 1803 [2020-10-14 08:56:33,533 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:56:33,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2020-10-14 08:56:33,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1723. [2020-10-14 08:56:33,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1723 states. [2020-10-14 08:56:33,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2286 transitions. [2020-10-14 08:56:33,616 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2286 transitions. Word has length 90 [2020-10-14 08:56:33,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:56:33,619 INFO L479 AbstractCegarLoop]: Abstraction has 1723 states and 2286 transitions. [2020-10-14 08:56:33,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:56:33,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2286 transitions. [2020-10-14 08:56:33,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-14 08:56:33,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:56:33,625 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] [2020-10-14 08:56:33,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:56:33,625 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:56:33,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:56:33,626 INFO L82 PathProgramCache]: Analyzing trace with hash 71484187, now seen corresponding path program 1 times [2020-10-14 08:56:33,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:56:33,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1220378464] [2020-10-14 08:56:33,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:56:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:33,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:33,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:33,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:34,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:34,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:34,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:34,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:38,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:38,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 08:56:38,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:56:38,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 08:56:38,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:38,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:38,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:56:38,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:56:38,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 08:56:38,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:56:39,865 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:56:39,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:56:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:39,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:39,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:39,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:56:39,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:56:39,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 08:56:39,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:39,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:39,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:56:39,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:56:39,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:56:39,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 08:56:40,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:56:40,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1220378464] [2020-10-14 08:56:40,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:56:40,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:56:40,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996424706] [2020-10-14 08:56:40,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:56:40,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:56:40,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:56:40,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:56:40,007 INFO L87 Difference]: Start difference. First operand 1723 states and 2286 transitions. Second operand 6 states. [2020-10-14 08:56:41,099 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 475 [2020-10-14 08:56:46,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:56:46,776 INFO L93 Difference]: Finished difference Result 2874 states and 3892 transitions. [2020-10-14 08:56:46,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:56:46,777 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2020-10-14 08:56:46,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:56:46,792 INFO L225 Difference]: With dead ends: 2874 [2020-10-14 08:56:46,792 INFO L226 Difference]: Without dead ends: 1991 [2020-10-14 08:56:46,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:56:46,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2020-10-14 08:56:46,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1911. [2020-10-14 08:56:46,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1911 states. [2020-10-14 08:56:46,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2629 transitions. [2020-10-14 08:56:46,882 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2629 transitions. Word has length 90 [2020-10-14 08:56:46,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:56:46,883 INFO L479 AbstractCegarLoop]: Abstraction has 1911 states and 2629 transitions. [2020-10-14 08:56:46,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:56:46,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2629 transitions. [2020-10-14 08:56:46,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-14 08:56:46,888 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:56:46,888 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] [2020-10-14 08:56:46,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:56:46,889 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:56:46,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:56:46,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1910717333, now seen corresponding path program 1 times [2020-10-14 08:56:46,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:56:46,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857500340] [2020-10-14 08:56:46,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:56:46,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:46,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:47,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:47,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:47,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:47,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:47,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:48,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:49,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:50,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:51,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:51,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 08:56:51,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 08:56:51,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 08:56:51,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:51,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:51,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:56:51,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:56:51,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 08:56:51,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:56:53,237 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:56:53,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:56:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:53,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:53,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:53,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:56:53,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:56:53,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 08:56:53,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:53,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:53,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:56:53,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:56:53,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:56:53,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:56:53,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:56:53,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857500340] [2020-10-14 08:56:53,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:56:53,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:56:53,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895819814] [2020-10-14 08:56:53,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:56:53,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:56:53,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:56:53,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:56:53,303 INFO L87 Difference]: Start difference. First operand 1911 states and 2629 transitions. Second operand 6 states. [2020-10-14 08:56:54,378 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 467 [2020-10-14 08:57:01,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:57:01,439 INFO L93 Difference]: Finished difference Result 7002 states and 10108 transitions. [2020-10-14 08:57:01,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 08:57:01,440 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2020-10-14 08:57:01,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:57:01,466 INFO L225 Difference]: With dead ends: 7002 [2020-10-14 08:57:01,467 INFO L226 Difference]: Without dead ends: 6382 [2020-10-14 08:57:01,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:57:01,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6382 states. [2020-10-14 08:57:01,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6382 to 4928. [2020-10-14 08:57:01,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4928 states. [2020-10-14 08:57:01,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4928 states to 4928 states and 7083 transitions. [2020-10-14 08:57:01,693 INFO L78 Accepts]: Start accepts. Automaton has 4928 states and 7083 transitions. Word has length 91 [2020-10-14 08:57:01,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:57:01,694 INFO L479 AbstractCegarLoop]: Abstraction has 4928 states and 7083 transitions. [2020-10-14 08:57:01,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:57:01,694 INFO L276 IsEmpty]: Start isEmpty. Operand 4928 states and 7083 transitions. [2020-10-14 08:57:01,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-14 08:57:01,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:57:01,700 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] [2020-10-14 08:57:01,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:57:01,701 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:57:01,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:57:01,701 INFO L82 PathProgramCache]: Analyzing trace with hash 748210242, now seen corresponding path program 1 times [2020-10-14 08:57:01,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:57:01,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1016655659] [2020-10-14 08:57:01,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:57:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:57:01,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:01,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:01,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:02,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:02,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:02,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:02,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:03,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:06,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:57:06,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 08:57:06,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:57:06,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:57:06,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:57:06,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:57:06,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:57:06,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:57:06,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 08:57:06,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:57:07,925 WARN L193 SmtUtils]: Spent 957.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:57:07,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:57:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:57:07,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:07,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:57:07,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:57:07,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:57:07,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:57:07,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:57:07,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:57:07,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:57:07,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:57:07,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:57:07,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:57:07,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:57:07,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1016655659] [2020-10-14 08:57:07,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:57:07,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:57:07,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229267373] [2020-10-14 08:57:07,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:57:07,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:57:07,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:57:07,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:57:07,982 INFO L87 Difference]: Start difference. First operand 4928 states and 7083 transitions. Second operand 7 states. [2020-10-14 08:57:09,058 WARN L193 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 476 [2020-10-14 08:57:16,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:57:16,130 INFO L93 Difference]: Finished difference Result 9156 states and 13516 transitions. [2020-10-14 08:57:16,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:57:16,131 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-14 08:57:16,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:57:16,159 INFO L225 Difference]: With dead ends: 9156 [2020-10-14 08:57:16,159 INFO L226 Difference]: Without dead ends: 7958 [2020-10-14 08:57:16,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:57:16,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7958 states. [2020-10-14 08:57:16,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7958 to 4928. [2020-10-14 08:57:16,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4928 states. [2020-10-14 08:57:16,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4928 states to 4928 states and 7082 transitions. [2020-10-14 08:57:16,399 INFO L78 Accepts]: Start accepts. Automaton has 4928 states and 7082 transitions. Word has length 91 [2020-10-14 08:57:16,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:57:16,400 INFO L479 AbstractCegarLoop]: Abstraction has 4928 states and 7082 transitions. [2020-10-14 08:57:16,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:57:16,400 INFO L276 IsEmpty]: Start isEmpty. Operand 4928 states and 7082 transitions. [2020-10-14 08:57:16,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 08:57:16,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:57:16,407 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] [2020-10-14 08:57:16,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:57:16,407 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:57:16,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:57:16,408 INFO L82 PathProgramCache]: Analyzing trace with hash 558516228, now seen corresponding path program 1 times [2020-10-14 08:57:16,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:57:16,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067313802] [2020-10-14 08:57:16,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:57:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:57:16,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:16,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:16,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:17,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:17,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:17,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:18,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:19,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:19,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:19,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:19,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:21,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:57:21,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 08:57:21,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:57:21,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 08:57:21,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:57:21,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:57:21,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:57:21,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:57:21,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 08:57:21,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:57:22,535 WARN L193 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:57:22,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:57:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:57:22,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:22,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:57:22,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:57:22,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:57:22,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 08:57:22,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:57:22,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:57:22,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:57:22,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:57:22,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:57:22,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:57:22,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:57:22,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067313802] [2020-10-14 08:57:22,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:57:22,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:57:22,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018633848] [2020-10-14 08:57:22,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:57:22,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:57:22,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:57:22,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:57:22,603 INFO L87 Difference]: Start difference. First operand 4928 states and 7082 transitions. Second operand 6 states. [2020-10-14 08:57:23,640 WARN L193 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 467 [2020-10-14 08:57:31,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:57:31,272 INFO L93 Difference]: Finished difference Result 7837 states and 11321 transitions. [2020-10-14 08:57:31,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 08:57:31,273 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2020-10-14 08:57:31,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:57:31,297 INFO L225 Difference]: With dead ends: 7837 [2020-10-14 08:57:31,298 INFO L226 Difference]: Without dead ends: 6577 [2020-10-14 08:57:31,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:57:31,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6577 states. [2020-10-14 08:57:31,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6577 to 4923. [2020-10-14 08:57:31,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4923 states. [2020-10-14 08:57:31,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4923 states to 4923 states and 7076 transitions. [2020-10-14 08:57:31,529 INFO L78 Accepts]: Start accepts. Automaton has 4923 states and 7076 transitions. Word has length 92 [2020-10-14 08:57:31,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:57:31,529 INFO L479 AbstractCegarLoop]: Abstraction has 4923 states and 7076 transitions. [2020-10-14 08:57:31,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:57:31,529 INFO L276 IsEmpty]: Start isEmpty. Operand 4923 states and 7076 transitions. [2020-10-14 08:57:31,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 08:57:31,535 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:57:31,535 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] [2020-10-14 08:57:31,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:57:31,535 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:57:31,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:57:31,536 INFO L82 PathProgramCache]: Analyzing trace with hash -30073666, now seen corresponding path program 1 times [2020-10-14 08:57:31,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:57:31,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202134301] [2020-10-14 08:57:31,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:57:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:57:31,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:31,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:31,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:31,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:32,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:33,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:33,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:33,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:33,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:34,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:36,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:57:36,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 08:57:36,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 08:57:36,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 08:57:36,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:57:36,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:57:36,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:57:36,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:57:36,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 08:57:36,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:57:37,753 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:57:37,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:57:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:57:37,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:37,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:57:37,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:57:37,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:57:37,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 08:57:37,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:57:37,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:57:37,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:57:37,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:57:37,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:57:37,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:57:37,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:57:37,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202134301] [2020-10-14 08:57:37,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:57:37,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:57:37,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025508209] [2020-10-14 08:57:37,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:57:37,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:57:37,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:57:37,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:57:37,824 INFO L87 Difference]: Start difference. First operand 4923 states and 7076 transitions. Second operand 7 states. [2020-10-14 08:57:38,929 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 476 [2020-10-14 08:57:46,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:57:46,151 INFO L93 Difference]: Finished difference Result 9449 states and 13895 transitions. [2020-10-14 08:57:46,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:57:46,151 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2020-10-14 08:57:46,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:57:46,171 INFO L225 Difference]: With dead ends: 9449 [2020-10-14 08:57:46,171 INFO L226 Difference]: Without dead ends: 8151 [2020-10-14 08:57:46,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:57:46,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8151 states. [2020-10-14 08:57:46,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8151 to 4923. [2020-10-14 08:57:46,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4923 states. [2020-10-14 08:57:46,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4923 states to 4923 states and 7075 transitions. [2020-10-14 08:57:46,417 INFO L78 Accepts]: Start accepts. Automaton has 4923 states and 7075 transitions. Word has length 92 [2020-10-14 08:57:46,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:57:46,418 INFO L479 AbstractCegarLoop]: Abstraction has 4923 states and 7075 transitions. [2020-10-14 08:57:46,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:57:46,418 INFO L276 IsEmpty]: Start isEmpty. Operand 4923 states and 7075 transitions. [2020-10-14 08:57:46,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 08:57:46,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:57:46,423 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] [2020-10-14 08:57:46,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:57:46,423 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:57:46,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:57:46,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1949628827, now seen corresponding path program 1 times [2020-10-14 08:57:46,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:57:46,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833540855] [2020-10-14 08:57:46,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:57:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:57:46,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:46,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:46,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:47,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:47,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:47,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:47,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:48,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:48,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:48,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:50,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:50,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:51,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:57:51,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 08:57:51,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 08:57:51,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 08:57:51,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:57:51,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:57:51,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:57:51,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:57:51,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 08:57:51,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:57:52,509 WARN L193 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:57:52,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:57:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:57:52,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:52,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:57:52,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:57:52,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:57:52,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:57:52,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:57:52,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:57:52,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:57:52,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:57:52,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:57:52,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:57:52,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:57:52,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833540855] [2020-10-14 08:57:52,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:57:52,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:57:52,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730148246] [2020-10-14 08:57:52,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:57:52,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:57:52,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:57:52,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:57:52,561 INFO L87 Difference]: Start difference. First operand 4923 states and 7075 transitions. Second operand 6 states. [2020-10-14 08:57:53,579 WARN L193 SmtUtils]: Spent 959.00 ms on a formula simplification that was a NOOP. DAG size: 467 [2020-10-14 08:58:01,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:58:01,479 INFO L93 Difference]: Finished difference Result 7689 states and 11123 transitions. [2020-10-14 08:58:01,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 08:58:01,479 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2020-10-14 08:58:01,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:58:01,494 INFO L225 Difference]: With dead ends: 7689 [2020-10-14 08:58:01,494 INFO L226 Difference]: Without dead ends: 6461 [2020-10-14 08:58:01,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:58:01,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6461 states. [2020-10-14 08:58:01,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6461 to 4910. [2020-10-14 08:58:01,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4910 states. [2020-10-14 08:58:01,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4910 states to 4910 states and 7058 transitions. [2020-10-14 08:58:01,765 INFO L78 Accepts]: Start accepts. Automaton has 4910 states and 7058 transitions. Word has length 92 [2020-10-14 08:58:01,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:58:01,766 INFO L479 AbstractCegarLoop]: Abstraction has 4910 states and 7058 transitions. [2020-10-14 08:58:01,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:58:01,766 INFO L276 IsEmpty]: Start isEmpty. Operand 4910 states and 7058 transitions. [2020-10-14 08:58:01,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 08:58:01,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:58:01,772 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] [2020-10-14 08:58:01,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:58:01,773 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:58:01,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:58:01,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1329763356, now seen corresponding path program 1 times [2020-10-14 08:58:01,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:58:01,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [505720633] [2020-10-14 08:58:01,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:58:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:58:01,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:01,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:01,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:02,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:02,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:03,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:03,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:03,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:04,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:04,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:04,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:06,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:06,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:58:06,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 08:58:06,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 08:58:06,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 08:58:06,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:58:06,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:58:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:58:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:58:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 08:58:06,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:58:07,930 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:58:07,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:58:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:58:07,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:07,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:58:07,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:58:07,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:58:07,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:58:07,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:58:07,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:58:07,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:58:07,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:58:07,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:58:07,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:58:07,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:58:07,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [505720633] [2020-10-14 08:58:07,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:58:07,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:58:07,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930770618] [2020-10-14 08:58:07,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:58:07,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:58:07,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:58:07,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:58:07,983 INFO L87 Difference]: Start difference. First operand 4910 states and 7058 transitions. Second operand 7 states. [2020-10-14 08:58:09,063 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 476 [2020-10-14 08:58:16,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:58:16,271 INFO L93 Difference]: Finished difference Result 9279 states and 13675 transitions. [2020-10-14 08:58:16,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:58:16,272 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2020-10-14 08:58:16,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:58:16,285 INFO L225 Difference]: With dead ends: 9279 [2020-10-14 08:58:16,285 INFO L226 Difference]: Without dead ends: 8030 [2020-10-14 08:58:16,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:58:16,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8030 states. [2020-10-14 08:58:16,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8030 to 4910. [2020-10-14 08:58:16,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4910 states. [2020-10-14 08:58:16,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4910 states to 4910 states and 7057 transitions. [2020-10-14 08:58:16,532 INFO L78 Accepts]: Start accepts. Automaton has 4910 states and 7057 transitions. Word has length 92 [2020-10-14 08:58:16,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:58:16,532 INFO L479 AbstractCegarLoop]: Abstraction has 4910 states and 7057 transitions. [2020-10-14 08:58:16,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:58:16,532 INFO L276 IsEmpty]: Start isEmpty. Operand 4910 states and 7057 transitions. [2020-10-14 08:58:16,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 08:58:16,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:58:16,536 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] [2020-10-14 08:58:16,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:58:16,537 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:58:16,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:58:16,537 INFO L82 PathProgramCache]: Analyzing trace with hash 300838980, now seen corresponding path program 1 times [2020-10-14 08:58:16,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:58:16,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [501220030] [2020-10-14 08:58:16,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:58:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:58:16,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:16,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:16,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:16,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:16,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:17,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:17,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:17,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:18,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:18,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:19,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:19,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:20,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:20,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:21,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:58:21,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 08:58:21,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:58:21,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:58:21,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:58:21,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:58:21,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:58:21,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:58:21,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 08:58:21,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:58:22,636 WARN L193 SmtUtils]: Spent 956.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:58:22,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:58:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:58:22,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:22,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:58:22,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:58:22,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:58:22,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 08:58:22,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:58:22,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:58:22,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:58:22,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:58:22,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:58:22,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:58:22,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:58:22,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [501220030] [2020-10-14 08:58:22,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:58:22,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:58:22,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578523860] [2020-10-14 08:58:22,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:58:22,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:58:22,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:58:22,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:58:22,717 INFO L87 Difference]: Start difference. First operand 4910 states and 7057 transitions. Second operand 6 states. [2020-10-14 08:58:23,788 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 474 [2020-10-14 08:58:28,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:58:28,941 INFO L93 Difference]: Finished difference Result 11261 states and 16507 transitions. [2020-10-14 08:58:28,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:58:28,942 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2020-10-14 08:58:28,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:58:28,958 INFO L225 Difference]: With dead ends: 11261 [2020-10-14 08:58:28,958 INFO L226 Difference]: Without dead ends: 7834 [2020-10-14 08:58:28,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:58:28,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7834 states. [2020-10-14 08:58:29,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7834 to 7774. [2020-10-14 08:58:29,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7774 states. [2020-10-14 08:58:29,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7774 states to 7774 states and 11399 transitions. [2020-10-14 08:58:29,345 INFO L78 Accepts]: Start accepts. Automaton has 7774 states and 11399 transitions. Word has length 92 [2020-10-14 08:58:29,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:58:29,345 INFO L479 AbstractCegarLoop]: Abstraction has 7774 states and 11399 transitions. [2020-10-14 08:58:29,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:58:29,345 INFO L276 IsEmpty]: Start isEmpty. Operand 7774 states and 11399 transitions. [2020-10-14 08:58:29,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-14 08:58:29,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:58:29,349 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] [2020-10-14 08:58:29,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:58:29,349 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:58:29,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:58:29,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1150965123, now seen corresponding path program 1 times [2020-10-14 08:58:29,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:58:29,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [709835454] [2020-10-14 08:58:29,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:58:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:58:29,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:29,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:29,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:29,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:31,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:31,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:32,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:32,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:33,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:33,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:33,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:33,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:34,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:34,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:34,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:58:34,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 08:58:34,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:58:34,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 08:58:34,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:58:34,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:58:34,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:58:34,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:58:34,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 08:58:34,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:58:35,457 WARN L193 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:58:35,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:58:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:58:35,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:35,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:58:35,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:58:35,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:58:35,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:58:35,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:58:35,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:58:35,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:58:35,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:58:35,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:58:35,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:58:35,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:58:35,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [709835454] [2020-10-14 08:58:35,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:58:35,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:58:35,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819702447] [2020-10-14 08:58:35,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:58:35,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:58:35,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:58:35,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:58:35,507 INFO L87 Difference]: Start difference. First operand 7774 states and 11399 transitions. Second operand 6 states. [2020-10-14 08:58:36,558 WARN L193 SmtUtils]: Spent 998.00 ms on a formula simplification that was a NOOP. DAG size: 467 [2020-10-14 08:58:44,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:58:44,716 INFO L93 Difference]: Finished difference Result 12836 states and 18962 transitions. [2020-10-14 08:58:44,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 08:58:44,717 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2020-10-14 08:58:44,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:58:44,728 INFO L225 Difference]: With dead ends: 12836 [2020-10-14 08:58:44,728 INFO L226 Difference]: Without dead ends: 10337 [2020-10-14 08:58:44,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:58:44,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10337 states. [2020-10-14 08:58:45,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10337 to 7517. [2020-10-14 08:58:45,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7517 states. [2020-10-14 08:58:45,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7517 states to 7517 states and 11040 transitions. [2020-10-14 08:58:45,064 INFO L78 Accepts]: Start accepts. Automaton has 7517 states and 11040 transitions. Word has length 93 [2020-10-14 08:58:45,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:58:45,064 INFO L479 AbstractCegarLoop]: Abstraction has 7517 states and 11040 transitions. [2020-10-14 08:58:45,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:58:45,064 INFO L276 IsEmpty]: Start isEmpty. Operand 7517 states and 11040 transitions. [2020-10-14 08:58:45,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-14 08:58:45,067 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:58:45,067 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] [2020-10-14 08:58:45,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:58:45,067 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:58:45,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:58:45,068 INFO L82 PathProgramCache]: Analyzing trace with hash -893666260, now seen corresponding path program 1 times [2020-10-14 08:58:45,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:58:45,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1448994587] [2020-10-14 08:58:45,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:58:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:58:45,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:45,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:45,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:45,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:45,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:46,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:46,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:46,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:47,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:47,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:49,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:50,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:58:50,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 08:58:50,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:58:50,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 08:58:50,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:58:50,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:58:50,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:58:50,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:58:50,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 08:58:50,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:58:51,254 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:58:51,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:58:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:58:51,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:58:51,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:58:51,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:58:51,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:58:51,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:58:51,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:58:51,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:58:51,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:58:51,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:58:51,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:58:51,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:58:51,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:58:51,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1448994587] [2020-10-14 08:58:51,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:58:51,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:58:51,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541638347] [2020-10-14 08:58:51,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:58:51,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:58:51,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:58:51,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:58:51,308 INFO L87 Difference]: Start difference. First operand 7517 states and 11040 transitions. Second operand 7 states. [2020-10-14 08:58:52,374 WARN L193 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 476 [2020-10-14 08:58:59,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:58:59,703 INFO L93 Difference]: Finished difference Result 15970 states and 23877 transitions. [2020-10-14 08:58:59,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:58:59,704 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2020-10-14 08:58:59,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:58:59,718 INFO L225 Difference]: With dead ends: 15970 [2020-10-14 08:58:59,719 INFO L226 Difference]: Without dead ends: 13433 [2020-10-14 08:58:59,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:58:59,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13433 states. [2020-10-14 08:59:00,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13433 to 7517. [2020-10-14 08:59:00,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7517 states. [2020-10-14 08:59:00,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7517 states to 7517 states and 11039 transitions. [2020-10-14 08:59:00,041 INFO L78 Accepts]: Start accepts. Automaton has 7517 states and 11039 transitions. Word has length 93 [2020-10-14 08:59:00,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:59:00,041 INFO L479 AbstractCegarLoop]: Abstraction has 7517 states and 11039 transitions. [2020-10-14 08:59:00,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:59:00,041 INFO L276 IsEmpty]: Start isEmpty. Operand 7517 states and 11039 transitions. [2020-10-14 08:59:00,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-14 08:59:00,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:59:00,045 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] [2020-10-14 08:59:00,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 08:59:00,045 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:59:00,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:59:00,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1157486657, now seen corresponding path program 1 times [2020-10-14 08:59:00,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:59:00,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [908310469] [2020-10-14 08:59:00,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:59:00,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:59:00,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:00,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:00,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:00,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:00,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:01,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:01,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:01,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:01,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:01,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:02,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:04,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:04,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:04,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:05,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:59:05,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 08:59:05,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:59:05,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-14 08:59:05,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:59:05,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:59:05,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:59:05,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:59:05,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 08:59:05,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:59:06,154 WARN L193 SmtUtils]: Spent 968.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:59:06,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:59:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:59:06,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:06,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:59:06,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:59:06,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:59:06,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 08:59:06,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:59:06,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:59:06,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:59:06,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:59:06,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:59:06,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:59:06,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:59:06,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [908310469] [2020-10-14 08:59:06,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:59:06,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:59:06,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069447483] [2020-10-14 08:59:06,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:59:06,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:59:06,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:59:06,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:59:06,225 INFO L87 Difference]: Start difference. First operand 7517 states and 11039 transitions. Second operand 6 states. [2020-10-14 08:59:07,272 WARN L193 SmtUtils]: Spent 981.00 ms on a formula simplification that was a NOOP. DAG size: 475 [2020-10-14 08:59:12,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:59:12,318 INFO L93 Difference]: Finished difference Result 18663 states and 27786 transitions. [2020-10-14 08:59:12,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:59:12,318 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2020-10-14 08:59:12,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:59:12,330 INFO L225 Difference]: With dead ends: 18663 [2020-10-14 08:59:12,330 INFO L226 Difference]: Without dead ends: 13122 [2020-10-14 08:59:12,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:59:12,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13122 states. [2020-10-14 08:59:12,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13122 to 13042. [2020-10-14 08:59:12,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13042 states. [2020-10-14 08:59:12,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13042 states to 13042 states and 19317 transitions. [2020-10-14 08:59:12,914 INFO L78 Accepts]: Start accepts. Automaton has 13042 states and 19317 transitions. Word has length 93 [2020-10-14 08:59:12,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:59:12,914 INFO L479 AbstractCegarLoop]: Abstraction has 13042 states and 19317 transitions. [2020-10-14 08:59:12,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:59:12,914 INFO L276 IsEmpty]: Start isEmpty. Operand 13042 states and 19317 transitions. [2020-10-14 08:59:12,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-14 08:59:12,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:59:12,919 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] [2020-10-14 08:59:12,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 08:59:12,919 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:59:12,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:59:12,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1952681336, now seen corresponding path program 1 times [2020-10-14 08:59:12,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:59:12,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1729920795] [2020-10-14 08:59:12,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:59:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:59:12,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:13,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:13,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:13,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:14,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:14,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:15,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:16,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:16,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:17,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:17,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:17,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:59:17,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-14 08:59:17,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:59:17,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 08:59:17,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:59:17,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:59:17,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:59:17,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:59:17,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 08:59:17,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:59:19,051 WARN L193 SmtUtils]: Spent 983.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:59:19,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:59:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:59:19,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:59:19,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:59:19,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:59:19,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:59:19,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:59:19,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:59:19,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:59:19,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:59:19,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:59:19,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:59:19,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:59:19,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:59:19,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1729920795] [2020-10-14 08:59:19,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:59:19,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 08:59:19,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868773672] [2020-10-14 08:59:19,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 08:59:19,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:59:19,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 08:59:19,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:59:19,101 INFO L87 Difference]: Start difference. First operand 13042 states and 19317 transitions. Second operand 8 states. [2020-10-14 08:59:20,256 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 478