/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 18:19:25,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 18:19:25,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 18:19:25,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 18:19:25,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 18:19:25,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 18:19:25,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 18:19:26,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 18:19:26,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 18:19:26,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 18:19:26,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 18:19:26,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 18:19:26,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 18:19:26,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 18:19:26,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 18:19:26,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 18:19:26,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 18:19:26,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 18:19:26,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 18:19:26,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 18:19:26,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 18:19:26,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 18:19:26,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 18:19:26,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 18:19:26,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 18:19:26,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 18:19:26,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 18:19:26,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 18:19:26,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 18:19:26,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-08-21 18:19:26,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 18:19:26,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 18:19:26,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 18:19:26,056 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 [2020-08-21 18:19:26,101 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 18:19:26,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 18:19:26,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 18:19:26,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 18:19:26,103 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 18:19:26,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 18:19:26,104 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 18:19:26,104 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 18:19:26,104 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 18:19:26,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 18:19:26,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 18:19:26,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 18:19:26,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 18:19:26,106 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 18:19:26,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 18:19:26,107 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 18:19:26,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 18:19:26,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 18:19:26,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 18:19:26,108 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 18:19:26,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 18:19:26,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 18:19:26,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 18:19:26,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 18:19:26,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 18:19:26,109 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 18:19:26,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 18:19:26,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 18:19:26,110 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 18:19:26,110 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-08-21 18:19:26,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 18:19:26,454 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 18:19:26,457 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 18:19:26,459 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 18:19:26,459 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 18:19:26,460 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-08-21 18:19:26,539 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27d5e40cc/1d42b6848aa64496901429bfcaaea321/FLAG3d61a61f2 [2020-08-21 18:19:27,270 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 18:19:27,271 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-08-21 18:19:27,301 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27d5e40cc/1d42b6848aa64496901429bfcaaea321/FLAG3d61a61f2 [2020-08-21 18:19:27,421 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27d5e40cc/1d42b6848aa64496901429bfcaaea321 [2020-08-21 18:19:27,429 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 18:19:27,431 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 18:19:27,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 18:19:27,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 18:19:27,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 18:19:27,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:19:27" (1/1) ... [2020-08-21 18:19:27,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2027b3d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:19:27, skipping insertion in model container [2020-08-21 18:19:27,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:19:27" (1/1) ... [2020-08-21 18:19:27,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 18:19:27,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 18:19:29,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:19:29,030 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 18:19:30,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:19:30,064 INFO L208 MainTranslator]: Completed translation [2020-08-21 18:19:30,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:19:30 WrapperNode [2020-08-21 18:19:30,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 18:19:30,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 18:19:30,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 18:19:30,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 18:19:30,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:19:30" (1/1) ... [2020-08-21 18:19:30,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:19:30" (1/1) ... [2020-08-21 18:19:30,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:19:30" (1/1) ... [2020-08-21 18:19:30,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:19:30" (1/1) ... [2020-08-21 18:19:30,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:19:30" (1/1) ... [2020-08-21 18:19:30,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:19:30" (1/1) ... [2020-08-21 18:19:30,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:19:30" (1/1) ... [2020-08-21 18:19:30,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 18:19:30,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 18:19:30,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 18:19:30,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 18:19:30,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:19:30" (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 [2020-08-21 18:19:30,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 18:19:30,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 18:19:30,384 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-21 18:19:30,384 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 18:19:30,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 18:19:30,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-08-21 18:19:30,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-08-21 18:19:30,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-08-21 18:19:30,385 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-08-21 18:19:30,385 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 18:19:30,385 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-21 18:19:30,385 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-08-21 18:19:30,386 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-08-21 18:19:30,386 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-08-21 18:19:30,386 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-08-21 18:19:30,386 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-08-21 18:19:30,386 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-08-21 18:19:30,386 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-08-21 18:19:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-08-21 18:19:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 18:19:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 18:19:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 18:19:33,414 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 18:19:33,415 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-21 18:19:33,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:19:33 BoogieIcfgContainer [2020-08-21 18:19:33,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 18:19:33,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 18:19:33,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 18:19:33,430 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 18:19:33,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 06:19:27" (1/3) ... [2020-08-21 18:19:33,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2bc76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:19:33, skipping insertion in model container [2020-08-21 18:19:33,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:19:30" (2/3) ... [2020-08-21 18:19:33,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2bc76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:19:33, skipping insertion in model container [2020-08-21 18:19:33,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:19:33" (3/3) ... [2020-08-21 18:19:33,434 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-08-21 18:19:33,446 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 18:19:33,455 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-08-21 18:19:33,474 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-08-21 18:19:33,504 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 18:19:33,504 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 18:19:33,504 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 18:19:33,504 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 18:19:33,504 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 18:19:33,504 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 18:19:33,505 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 18:19:33,505 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 18:19:33,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states. [2020-08-21 18:19:33,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-08-21 18:19:33,576 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:19:33,580 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] [2020-08-21 18:19:33,581 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:19:33,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:19:33,591 INFO L82 PathProgramCache]: Analyzing trace with hash -537993708, now seen corresponding path program 1 times [2020-08-21 18:19:33,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:19:33,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399041160] [2020-08-21 18:19:33,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:19:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:19:35,579 WARN L193 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-08-21 18:19:35,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:19:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:19:35,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 18:19:35,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399041160] [2020-08-21 18:19:35,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:19:35,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 18:19:35,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147666466] [2020-08-21 18:19:35,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 18:19:35,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:19:35,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 18:19:35,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 18:19:35,869 INFO L87 Difference]: Start difference. First operand 1027 states. Second operand 4 states. [2020-08-21 18:19:36,430 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-08-21 18:19:44,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:19:44,128 INFO L93 Difference]: Finished difference Result 1794 states and 3183 transitions. [2020-08-21 18:19:44,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 18:19:44,129 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 327 [2020-08-21 18:19:44,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:19:44,160 INFO L225 Difference]: With dead ends: 1794 [2020-08-21 18:19:44,161 INFO L226 Difference]: Without dead ends: 1483 [2020-08-21 18:19:44,167 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 18:19:44,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2020-08-21 18:19:44,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1481. [2020-08-21 18:19:44,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1481 states. [2020-08-21 18:19:44,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 2263 transitions. [2020-08-21 18:19:44,312 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 2263 transitions. Word has length 327 [2020-08-21 18:19:44,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:19:44,313 INFO L479 AbstractCegarLoop]: Abstraction has 1481 states and 2263 transitions. [2020-08-21 18:19:44,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 18:19:44,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 2263 transitions. [2020-08-21 18:19:44,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-08-21 18:19:44,324 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:19:44,325 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] [2020-08-21 18:19:44,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 18:19:44,326 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:19:44,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:19:44,328 INFO L82 PathProgramCache]: Analyzing trace with hash 297127498, now seen corresponding path program 1 times [2020-08-21 18:19:44,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:19:44,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1935242880] [2020-08-21 18:19:44,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:19:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:19:45,370 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-08-21 18:19:45,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:19:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:19:45,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 18:19:45,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1935242880] [2020-08-21 18:19:45,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:19:45,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 18:19:45,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860906869] [2020-08-21 18:19:45,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 18:19:45,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:19:45,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 18:19:45,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 18:19:45,658 INFO L87 Difference]: Start difference. First operand 1481 states and 2263 transitions. Second operand 4 states. [2020-08-21 18:19:46,406 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-08-21 18:19:53,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:19:53,223 INFO L93 Difference]: Finished difference Result 2844 states and 4401 transitions. [2020-08-21 18:19:53,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 18:19:53,224 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 327 [2020-08-21 18:19:53,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:19:53,237 INFO L225 Difference]: With dead ends: 2844 [2020-08-21 18:19:53,238 INFO L226 Difference]: Without dead ends: 2425 [2020-08-21 18:19:53,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 18:19:53,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2020-08-21 18:19:53,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 2423. [2020-08-21 18:19:53,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2423 states. [2020-08-21 18:19:53,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 3727 transitions. [2020-08-21 18:19:53,329 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 3727 transitions. Word has length 327 [2020-08-21 18:19:53,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:19:53,331 INFO L479 AbstractCegarLoop]: Abstraction has 2423 states and 3727 transitions. [2020-08-21 18:19:53,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 18:19:53,331 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 3727 transitions. [2020-08-21 18:19:53,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-08-21 18:19:53,340 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:19:53,340 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] [2020-08-21 18:19:53,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 18:19:53,341 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:19:53,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:19:53,342 INFO L82 PathProgramCache]: Analyzing trace with hash -586459585, now seen corresponding path program 1 times [2020-08-21 18:19:53,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:19:53,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798433837] [2020-08-21 18:19:53,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:19:53,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:19:54,305 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-08-21 18:19:54,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:19:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:19:54,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 18:19:54,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798433837] [2020-08-21 18:19:54,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:19:54,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 18:19:54,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359653969] [2020-08-21 18:19:54,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 18:19:54,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:19:54,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 18:19:54,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 18:19:54,476 INFO L87 Difference]: Start difference. First operand 2423 states and 3727 transitions. Second operand 4 states. [2020-08-21 18:19:55,040 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-08-21 18:20:01,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:20:01,142 INFO L93 Difference]: Finished difference Result 5038 states and 7854 transitions. [2020-08-21 18:20:01,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 18:20:01,143 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 327 [2020-08-21 18:20:01,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:20:01,166 INFO L225 Difference]: With dead ends: 5038 [2020-08-21 18:20:01,167 INFO L226 Difference]: Without dead ends: 4361 [2020-08-21 18:20:01,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 18:20:01,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4361 states. [2020-08-21 18:20:01,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4361 to 4359. [2020-08-21 18:20:01,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4359 states. [2020-08-21 18:20:01,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4359 states to 4359 states and 6733 transitions. [2020-08-21 18:20:01,311 INFO L78 Accepts]: Start accepts. Automaton has 4359 states and 6733 transitions. Word has length 327 [2020-08-21 18:20:01,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:20:01,312 INFO L479 AbstractCegarLoop]: Abstraction has 4359 states and 6733 transitions. [2020-08-21 18:20:01,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 18:20:01,312 INFO L276 IsEmpty]: Start isEmpty. Operand 4359 states and 6733 transitions. [2020-08-21 18:20:01,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-08-21 18:20:01,325 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:20:01,326 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] [2020-08-21 18:20:01,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 18:20:01,326 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:20:01,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:20:01,327 INFO L82 PathProgramCache]: Analyzing trace with hash -586798209, now seen corresponding path program 1 times [2020-08-21 18:20:01,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:20:01,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2104082305] [2020-08-21 18:20:01,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:20:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:20:02,433 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-08-21 18:20:02,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:20:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:20:02,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 18:20:02,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2104082305] [2020-08-21 18:20:02,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:20:02,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 18:20:02,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576158697] [2020-08-21 18:20:02,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 18:20:02,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:20:02,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 18:20:02,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 18:20:02,617 INFO L87 Difference]: Start difference. First operand 4359 states and 6733 transitions. Second operand 5 states. [2020-08-21 18:20:12,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:20:12,621 INFO L93 Difference]: Finished difference Result 12898 states and 19904 transitions. [2020-08-21 18:20:12,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 18:20:12,622 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 327 [2020-08-21 18:20:12,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:20:12,665 INFO L225 Difference]: With dead ends: 12898 [2020-08-21 18:20:12,666 INFO L226 Difference]: Without dead ends: 8554 [2020-08-21 18:20:12,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-21 18:20:12,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8554 states. [2020-08-21 18:20:12,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8554 to 8347. [2020-08-21 18:20:12,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8347 states. [2020-08-21 18:20:12,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8347 states to 8347 states and 12864 transitions. [2020-08-21 18:20:12,985 INFO L78 Accepts]: Start accepts. Automaton has 8347 states and 12864 transitions. Word has length 327 [2020-08-21 18:20:12,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:20:12,986 INFO L479 AbstractCegarLoop]: Abstraction has 8347 states and 12864 transitions. [2020-08-21 18:20:12,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 18:20:12,986 INFO L276 IsEmpty]: Start isEmpty. Operand 8347 states and 12864 transitions. [2020-08-21 18:20:13,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-08-21 18:20:13,003 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:20:13,003 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] [2020-08-21 18:20:13,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 18:20:13,004 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:20:13,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:20:13,005 INFO L82 PathProgramCache]: Analyzing trace with hash 318218777, now seen corresponding path program 1 times [2020-08-21 18:20:13,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:20:13,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024089165] [2020-08-21 18:20:13,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:20:13,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:20:13,841 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-08-21 18:20:13,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:20:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:20:14,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 18:20:14,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024089165] [2020-08-21 18:20:14,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:20:14,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 18:20:14,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052479186] [2020-08-21 18:20:14,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 18:20:14,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:20:14,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 18:20:14,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 18:20:14,047 INFO L87 Difference]: Start difference. First operand 8347 states and 12864 transitions. Second operand 4 states. [2020-08-21 18:20:25,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:20:25,210 INFO L93 Difference]: Finished difference Result 24596 states and 37840 transitions. [2020-08-21 18:20:25,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-21 18:20:25,211 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 329 [2020-08-21 18:20:25,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:20:25,265 INFO L225 Difference]: With dead ends: 24596 [2020-08-21 18:20:25,266 INFO L226 Difference]: Without dead ends: 16378 [2020-08-21 18:20:25,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 18:20:25,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16378 states. [2020-08-21 18:20:25,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16378 to 16171. [2020-08-21 18:20:25,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16171 states. [2020-08-21 18:20:25,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16171 states to 16171 states and 24823 transitions. [2020-08-21 18:20:25,838 INFO L78 Accepts]: Start accepts. Automaton has 16171 states and 24823 transitions. Word has length 329 [2020-08-21 18:20:25,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:20:25,839 INFO L479 AbstractCegarLoop]: Abstraction has 16171 states and 24823 transitions. [2020-08-21 18:20:25,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 18:20:25,839 INFO L276 IsEmpty]: Start isEmpty. Operand 16171 states and 24823 transitions. [2020-08-21 18:20:25,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-08-21 18:20:25,878 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:20:25,878 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] [2020-08-21 18:20:25,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 18:20:25,879 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:20:25,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:20:25,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1871319948, now seen corresponding path program 1 times [2020-08-21 18:20:25,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:20:25,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962071677] [2020-08-21 18:20:25,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:20:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat