/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 SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:43:26,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:43:26,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:43:26,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:43:26,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:43:26,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:43:26,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:43:26,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:43:26,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:43:26,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:43:26,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:43:26,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:43:26,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:43:26,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:43:26,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:43:26,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:43:26,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:43:26,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:43:26,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:43:26,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:43:26,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:43:26,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:43:26,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:43:26,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:43:26,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:43:26,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:43:26,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:43:26,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:43:26,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:43:26,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:43:26,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:43:26,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:43:26,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:43:26,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:43:26,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:43:26,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:43:26,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:43:26,764 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:43:26,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:43:26,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:43:26,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:43:26,768 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 [2020-09-25 13:43:26,812 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:43:26,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:43:26,815 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:43:26,815 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:43:26,815 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:43:26,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:43:26,816 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:43:26,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:43:26,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:43:26,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:43:26,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:43:26,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:43:26,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:43:26,818 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:43:26,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:43:26,819 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:43:26,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:43:26,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:43:26,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:43:26,820 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:43:26,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:43:26,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:43:26,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:43:26,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:43:26,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:43:26,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:43:26,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:43:26,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:43:26,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:43:26,822 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 -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:43:27,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:43:27,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:43:27,297 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:43:27,299 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:43:27,299 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:43:27,300 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2020-09-25 13:43:27,373 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff978ba07/bd300c405f064b4a9b98708de8cc7049/FLAGcfd2680bc [2020-09-25 13:43:28,224 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:43:28,225 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2020-09-25 13:43:28,265 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff978ba07/bd300c405f064b4a9b98708de8cc7049/FLAGcfd2680bc [2020-09-25 13:43:28,755 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff978ba07/bd300c405f064b4a9b98708de8cc7049 [2020-09-25 13:43:28,769 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:43:28,775 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:43:28,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:43:28,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:43:28,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:43:28,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:43:28" (1/1) ... [2020-09-25 13:43:28,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f066e53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:43:28, skipping insertion in model container [2020-09-25 13:43:28,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:43:28" (1/1) ... [2020-09-25 13:43:28,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:43:29,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:43:31,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:43:31,698 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:43:33,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:43:33,700 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:43:33,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:43:33 WrapperNode [2020-09-25 13:43:33,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:43:33,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:43:33,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:43:33,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:43:33,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:43:33" (1/1) ... [2020-09-25 13:43:33,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:43:33" (1/1) ... [2020-09-25 13:43:33,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:43:33" (1/1) ... [2020-09-25 13:43:33,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:43:33" (1/1) ... [2020-09-25 13:43:33,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:43:33" (1/1) ... [2020-09-25 13:43:33,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:43:33" (1/1) ... [2020-09-25 13:43:33,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:43:33" (1/1) ... [2020-09-25 13:43:33,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:43:33,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:43:33,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:43:33,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:43:33,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:43:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:43:34,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:43:34,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:43:34,135 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 13:43:34,135 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:43:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:43:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 13:43:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 13:43:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-09-25 13:43:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 13:43:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 13:43:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-09-25 13:43:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-09-25 13:43:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-09-25 13:43:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-09-25 13:43:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-09-25 13:43:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-09-25 13:43:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-09-25 13:43:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-09-25 13:43:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-09-25 13:43:34,140 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:43:34,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:43:34,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:43:41,700 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:43:41,701 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 13:43:41,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:43:41 BoogieIcfgContainer [2020-09-25 13:43:41,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:43:41,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:43:41,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:43:41,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:43:41,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:43:28" (1/3) ... [2020-09-25 13:43:41,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1867a987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:43:41, skipping insertion in model container [2020-09-25 13:43:41,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:43:33" (2/3) ... [2020-09-25 13:43:41,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1867a987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:43:41, skipping insertion in model container [2020-09-25 13:43:41,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:43:41" (3/3) ... [2020-09-25 13:43:41,737 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2020-09-25 13:43:41,749 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:43:41,766 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-09-25 13:43:41,789 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-09-25 13:43:41,836 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:43:41,836 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:43:41,837 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:43:41,837 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:43:41,837 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:43:41,837 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:43:41,837 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:43:41,837 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:43:41,952 INFO L276 IsEmpty]: Start isEmpty. Operand 5254 states. [2020-09-25 13:43:42,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1307 [2020-09-25 13:43:42,059 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:43:42,062 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:43:42,063 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:43:42,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:43:42,072 INFO L82 PathProgramCache]: Analyzing trace with hash 472805393, now seen corresponding path program 1 times [2020-09-25 13:43:42,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:43:42,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [900138950] [2020-09-25 13:43:42,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:43:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:43:43,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:43:44,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:43:45,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:43:46,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:43:47,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:43:47,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:43:48,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:43:48,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1313 [2020-09-25 13:43:48,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:43:48,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5161 [2020-09-25 13:43:48,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:43:48,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:43:48,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:43:48,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 700 [2020-09-25 13:43:48,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:43:48,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 13:43:50,395 WARN L193 SmtUtils]: Spent 925.00 ms on a formula simplification that was a NOOP. DAG size: 409 [2020-09-25 13:43:50,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:43:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:43:50,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:43:50,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:43:50,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-09-25 13:43:50,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:43:50,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 13:43:50,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:43:50,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:43:50,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:43:50,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:43:50,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:43:50,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:43:51,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:43:51,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [900138950] [2020-09-25 13:43:51,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:43:51,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:43:51,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708657521] [2020-09-25 13:43:51,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:43:51,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:43:51,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:43:51,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:43:51,814 INFO L87 Difference]: Start difference. First operand 5254 states. Second operand 4 states. [2020-09-25 13:44:21,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:44:21,419 INFO L93 Difference]: Finished difference Result 11879 states and 16185 transitions. [2020-09-25 13:44:21,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 13:44:21,423 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1306 [2020-09-25 13:44:21,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:44:21,504 INFO L225 Difference]: With dead ends: 11879 [2020-09-25 13:44:21,504 INFO L226 Difference]: Without dead ends: 8579 [2020-09-25 13:44:21,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:44:21,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8579 states. [2020-09-25 13:44:21,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8579 to 8327. [2020-09-25 13:44:21,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8327 states. [2020-09-25 13:44:21,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8327 states to 8327 states and 11306 transitions. [2020-09-25 13:44:21,971 INFO L78 Accepts]: Start accepts. Automaton has 8327 states and 11306 transitions. Word has length 1306 [2020-09-25 13:44:21,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:44:21,983 INFO L479 AbstractCegarLoop]: Abstraction has 8327 states and 11306 transitions. [2020-09-25 13:44:21,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:44:21,983 INFO L276 IsEmpty]: Start isEmpty. Operand 8327 states and 11306 transitions. [2020-09-25 13:44:22,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1331 [2020-09-25 13:44:22,085 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:44:22,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:44:22,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:44:22,087 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:44:22,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:44:22,088 INFO L82 PathProgramCache]: Analyzing trace with hash -2027835079, now seen corresponding path program 1 times [2020-09-25 13:44:22,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:44:22,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1214248055] [2020-09-25 13:44:22,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:44:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:44:22,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking...