/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 false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:08:00,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:08:00,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:08:00,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:08:00,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:08:00,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:08:00,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:08:00,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:08:00,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:08:00,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:08:00,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:08:00,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:08:00,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:08:00,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:08:00,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:08:00,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:08:00,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:08:00,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:08:00,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:08:00,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:08:00,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:08:00,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:08:00,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:08:00,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:08:01,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-24 15:08:01,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:08:01,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:08:01,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:08:01,026 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 [2020-09-24 15:08:01,088 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:08:01,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:08:01,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:08:01,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:08:01,092 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:08:01,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:08:01,093 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:08:01,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:08:01,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:08:01,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:08:01,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:08:01,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:08:01,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:08:01,096 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:08:01,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:08:01,096 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:08:01,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:08:01,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:08:01,097 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:08:01,097 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:08:01,097 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:08:01,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:08:01,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:08:01,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:08:01,098 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:08:01,098 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:08:01,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:08:01,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:08:01,099 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:08:01,099 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 -> false [2020-09-24 15:08:01,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:08:01,592 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:08:01,596 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:08:01,598 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:08:01,598 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:08:01,599 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2020-09-24 15:08:01,699 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/03d83655b/1c38abe24c624707b36330794a44c3d5/FLAGbf1e328c5 [2020-09-24 15:08:02,308 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:08:02,309 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2020-09-24 15:08:02,318 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/03d83655b/1c38abe24c624707b36330794a44c3d5/FLAGbf1e328c5 [2020-09-24 15:08:02,626 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/03d83655b/1c38abe24c624707b36330794a44c3d5 [2020-09-24 15:08:02,640 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:08:02,645 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:08:02,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:08:02,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:08:02,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:08:02,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:08:02" (1/1) ... [2020-09-24 15:08:02,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f499f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:02, skipping insertion in model container [2020-09-24 15:08:02,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:08:02" (1/1) ... [2020-09-24 15:08:02,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:08:02,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:08:02,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:08:02,934 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:08:02,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:08:02,994 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:08:02,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:02 WrapperNode [2020-09-24 15:08:02,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:08:02,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:08:02,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:08:02,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:08:03,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:02" (1/1) ... [2020-09-24 15:08:03,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:02" (1/1) ... [2020-09-24 15:08:03,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:02" (1/1) ... [2020-09-24 15:08:03,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:02" (1/1) ... [2020-09-24 15:08:03,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:02" (1/1) ... [2020-09-24 15:08:03,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:02" (1/1) ... [2020-09-24 15:08:03,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:02" (1/1) ... [2020-09-24 15:08:03,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:08:03,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:08:03,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:08:03,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:08:03,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:02" (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 [2020-09-24 15:08:03,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:08:03,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:08:03,200 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 15:08:03,200 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:08:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:08:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 15:08:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 15:08:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 15:08:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 15:08:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:08:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:08:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:08:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:08:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:08:03,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:08:03,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:08:03,658 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:08:03,658 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 15:08:03,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:08:03 BoogieIcfgContainer [2020-09-24 15:08:03,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:08:03,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:08:03,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:08:03,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:08:03,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:08:02" (1/3) ... [2020-09-24 15:08:03,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f48af27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:08:03, skipping insertion in model container [2020-09-24 15:08:03,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:02" (2/3) ... [2020-09-24 15:08:03,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f48af27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:08:03, skipping insertion in model container [2020-09-24 15:08:03,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:08:03" (3/3) ... [2020-09-24 15:08:03,677 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i.v+nlh-reducer.c [2020-09-24 15:08:03,689 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:08:03,700 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-24 15:08:03,723 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-24 15:08:03,755 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:08:03,755 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:08:03,755 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:08:03,755 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:08:03,755 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:08:03,755 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:08:03,756 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:08:03,756 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:08:03,782 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2020-09-24 15:08:03,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 15:08:03,790 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:03,791 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] [2020-09-24 15:08:03,792 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:08:03,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:03,798 INFO L82 PathProgramCache]: Analyzing trace with hash 477414535, now seen corresponding path program 1 times [2020-09-24 15:08:03,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:03,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417160656] [2020-09-24 15:08:03,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:04,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:04,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:04,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417160656] [2020-09-24 15:08:04,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:04,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:08:04,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695939502] [2020-09-24 15:08:04,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:08:04,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:04,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:08:04,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:08:04,154 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 4 states. [2020-09-24 15:08:04,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:04,510 INFO L93 Difference]: Finished difference Result 210 states and 236 transitions. [2020-09-24 15:08:04,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 15:08:04,513 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-09-24 15:08:04,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:04,527 INFO L225 Difference]: With dead ends: 210 [2020-09-24 15:08:04,528 INFO L226 Difference]: Without dead ends: 110 [2020-09-24 15:08:04,533 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:08:04,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-09-24 15:08:04,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 76. [2020-09-24 15:08:04,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-24 15:08:04,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2020-09-24 15:08:04,587 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 30 [2020-09-24 15:08:04,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:04,588 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2020-09-24 15:08:04,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:08:04,588 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2020-09-24 15:08:04,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-24 15:08:04,590 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:04,590 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] [2020-09-24 15:08:04,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:08:04,591 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:08:04,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:04,591 INFO L82 PathProgramCache]: Analyzing trace with hash 572189094, now seen corresponding path program 1 times [2020-09-24 15:08:04,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:04,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1556606212] [2020-09-24 15:08:04,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:04,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:04,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:04,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1556606212] [2020-09-24 15:08:04,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:04,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:08:04,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752928857] [2020-09-24 15:08:04,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:08:04,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:04,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:08:04,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:08:04,712 INFO L87 Difference]: Start difference. First operand 76 states and 81 transitions. Second operand 4 states. [2020-09-24 15:08:04,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:04,931 INFO L93 Difference]: Finished difference Result 159 states and 167 transitions. [2020-09-24 15:08:04,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 15:08:04,932 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-09-24 15:08:04,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:04,934 INFO L225 Difference]: With dead ends: 159 [2020-09-24 15:08:04,934 INFO L226 Difference]: Without dead ends: 108 [2020-09-24 15:08:04,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:08:04,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-09-24 15:08:04,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 75. [2020-09-24 15:08:04,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-24 15:08:04,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 79 transitions. [2020-09-24 15:08:04,947 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 79 transitions. Word has length 31 [2020-09-24 15:08:04,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:04,947 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 79 transitions. [2020-09-24 15:08:04,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:08:04,948 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 79 transitions. [2020-09-24 15:08:04,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-24 15:08:04,949 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:04,949 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] [2020-09-24 15:08:04,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:08:04,950 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:08:04,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:04,950 INFO L82 PathProgramCache]: Analyzing trace with hash -921386779, now seen corresponding path program 1 times [2020-09-24 15:08:04,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:04,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1094327811] [2020-09-24 15:08:04,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:05,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:05,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:05,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1094327811] [2020-09-24 15:08:05,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:05,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:08:05,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71976319] [2020-09-24 15:08:05,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:08:05,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:05,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:08:05,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:08:05,055 INFO L87 Difference]: Start difference. First operand 75 states and 79 transitions. Second operand 6 states. [2020-09-24 15:08:05,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:05,244 INFO L93 Difference]: Finished difference Result 93 states and 97 transitions. [2020-09-24 15:08:05,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:08:05,245 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-09-24 15:08:05,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:05,246 INFO L225 Difference]: With dead ends: 93 [2020-09-24 15:08:05,247 INFO L226 Difference]: Without dead ends: 91 [2020-09-24 15:08:05,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:08:05,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-24 15:08:05,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 73. [2020-09-24 15:08:05,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-24 15:08:05,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2020-09-24 15:08:05,257 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 31 [2020-09-24 15:08:05,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:05,257 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2020-09-24 15:08:05,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:08:05,257 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2020-09-24 15:08:05,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 15:08:05,259 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:05,259 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] [2020-09-24 15:08:05,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:08:05,260 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:08:05,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:05,260 INFO L82 PathProgramCache]: Analyzing trace with hash -223412704, now seen corresponding path program 1 times [2020-09-24 15:08:05,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:05,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579435074] [2020-09-24 15:08:05,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:05,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:05,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:05,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579435074] [2020-09-24 15:08:05,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:05,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:08:05,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708138302] [2020-09-24 15:08:05,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:08:05,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:05,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:08:05,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:08:05,408 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand 4 states. [2020-09-24 15:08:05,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:05,554 INFO L93 Difference]: Finished difference Result 101 states and 105 transitions. [2020-09-24 15:08:05,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 15:08:05,555 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-09-24 15:08:05,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:05,556 INFO L225 Difference]: With dead ends: 101 [2020-09-24 15:08:05,556 INFO L226 Difference]: Without dead ends: 84 [2020-09-24 15:08:05,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:08:05,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-09-24 15:08:05,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 73. [2020-09-24 15:08:05,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-24 15:08:05,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2020-09-24 15:08:05,568 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 33 [2020-09-24 15:08:05,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:05,568 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2020-09-24 15:08:05,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:08:05,569 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2020-09-24 15:08:05,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-24 15:08:05,570 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:05,571 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] [2020-09-24 15:08:05,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:08:05,571 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:08:05,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:05,572 INFO L82 PathProgramCache]: Analyzing trace with hash 276122014, now seen corresponding path program 1 times [2020-09-24 15:08:05,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:05,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649346837] [2020-09-24 15:08:05,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:05,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:05,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:05,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1649346837] [2020-09-24 15:08:05,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:05,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:08:05,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124858298] [2020-09-24 15:08:05,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:08:05,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:05,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:08:05,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:08:05,812 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand 6 states. [2020-09-24 15:08:06,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:06,111 INFO L93 Difference]: Finished difference Result 181 states and 189 transitions. [2020-09-24 15:08:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:08:06,112 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-09-24 15:08:06,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:06,116 INFO L225 Difference]: With dead ends: 181 [2020-09-24 15:08:06,118 INFO L226 Difference]: Without dead ends: 139 [2020-09-24 15:08:06,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:08:06,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-09-24 15:08:06,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 87. [2020-09-24 15:08:06,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-24 15:08:06,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2020-09-24 15:08:06,140 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 52 [2020-09-24 15:08:06,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:06,141 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2020-09-24 15:08:06,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:08:06,141 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2020-09-24 15:08:06,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-24 15:08:06,145 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:06,145 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] [2020-09-24 15:08:06,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:08:06,145 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:08:06,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:06,146 INFO L82 PathProgramCache]: Analyzing trace with hash -94524522, now seen corresponding path program 1 times [2020-09-24 15:08:06,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:06,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1503698472] [2020-09-24 15:08:06,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:06,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:06,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:06,263 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1503698472] [2020-09-24 15:08:06,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:06,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:08:06,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798879671] [2020-09-24 15:08:06,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:08:06,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:06,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:08:06,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:08:06,266 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 9 states. [2020-09-24 15:08:06,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:06,628 INFO L93 Difference]: Finished difference Result 157 states and 165 transitions. [2020-09-24 15:08:06,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 15:08:06,629 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2020-09-24 15:08:06,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:06,630 INFO L225 Difference]: With dead ends: 157 [2020-09-24 15:08:06,630 INFO L226 Difference]: Without dead ends: 155 [2020-09-24 15:08:06,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2020-09-24 15:08:06,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-09-24 15:08:06,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 92. [2020-09-24 15:08:06,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-24 15:08:06,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 96 transitions. [2020-09-24 15:08:06,641 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 96 transitions. Word has length 53 [2020-09-24 15:08:06,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:06,642 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 96 transitions. [2020-09-24 15:08:06,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:08:06,642 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 96 transitions. [2020-09-24 15:08:06,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-24 15:08:06,643 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:06,644 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] [2020-09-24 15:08:06,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:08:06,644 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:08:06,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:06,645 INFO L82 PathProgramCache]: Analyzing trace with hash 893991191, now seen corresponding path program 1 times [2020-09-24 15:08:06,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:06,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1249621031] [2020-09-24 15:08:06,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:06,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:06,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:06,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1249621031] [2020-09-24 15:08:06,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:06,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:08:06,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445440482] [2020-09-24 15:08:06,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:08:06,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:06,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:08:06,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:08:06,833 INFO L87 Difference]: Start difference. First operand 92 states and 96 transitions. Second operand 6 states. [2020-09-24 15:08:07,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:07,108 INFO L93 Difference]: Finished difference Result 169 states and 176 transitions. [2020-09-24 15:08:07,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:08:07,108 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-09-24 15:08:07,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:07,110 INFO L225 Difference]: With dead ends: 169 [2020-09-24 15:08:07,110 INFO L226 Difference]: Without dead ends: 122 [2020-09-24 15:08:07,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:08:07,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-09-24 15:08:07,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 92. [2020-09-24 15:08:07,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-24 15:08:07,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 95 transitions. [2020-09-24 15:08:07,119 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 95 transitions. Word has length 53 [2020-09-24 15:08:07,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:07,120 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 95 transitions. [2020-09-24 15:08:07,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:08:07,120 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 95 transitions. [2020-09-24 15:08:07,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-24 15:08:07,121 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:07,122 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] [2020-09-24 15:08:07,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:08:07,122 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:08:07,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:07,123 INFO L82 PathProgramCache]: Analyzing trace with hash -2013372873, now seen corresponding path program 1 times [2020-09-24 15:08:07,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:07,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [37100095] [2020-09-24 15:08:07,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:07,983 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 41 [2020-09-24 15:08:08,216 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 72 [2020-09-24 15:08:08,376 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 60 [2020-09-24 15:08:08,566 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-09-24 15:08:08,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:08,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:08,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [37100095] [2020-09-24 15:08:08,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:08,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-09-24 15:08:08,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558501697] [2020-09-24 15:08:08,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 15:08:08,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:08,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 15:08:08,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2020-09-24 15:08:08,806 INFO L87 Difference]: Start difference. First operand 92 states and 95 transitions. Second operand 17 states. [2020-09-24 15:08:13,102 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 51 [2020-09-24 15:08:13,269 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 55 [2020-09-24 15:08:13,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:13,802 INFO L93 Difference]: Finished difference Result 147 states and 153 transitions. [2020-09-24 15:08:13,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 15:08:13,803 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 55 [2020-09-24 15:08:13,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:13,804 INFO L225 Difference]: With dead ends: 147 [2020-09-24 15:08:13,804 INFO L226 Difference]: Without dead ends: 100 [2020-09-24 15:08:13,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2020-09-24 15:08:13,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-09-24 15:08:13,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 80. [2020-09-24 15:08:13,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-24 15:08:13,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 81 transitions. [2020-09-24 15:08:13,813 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 81 transitions. Word has length 55 [2020-09-24 15:08:13,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:13,813 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 81 transitions. [2020-09-24 15:08:13,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 15:08:13,814 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 81 transitions. [2020-09-24 15:08:13,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 15:08:13,815 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:13,815 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:08:13,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:08:13,816 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:08:13,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:13,816 INFO L82 PathProgramCache]: Analyzing trace with hash 511170824, now seen corresponding path program 1 times [2020-09-24 15:08:13,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:13,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42959073] [2020-09-24 15:08:13,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:14,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:14,214 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:14,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42959073] [2020-09-24 15:08:14,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:08:14,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 15:08:14,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256196142] [2020-09-24 15:08:14,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:08:14,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:14,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:08:14,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:08:14,217 INFO L87 Difference]: Start difference. First operand 80 states and 81 transitions. Second operand 9 states. [2020-09-24 15:08:20,670 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 34 DAG size of output: 26 [2020-09-24 15:08:23,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:23,103 INFO L93 Difference]: Finished difference Result 95 states and 96 transitions. [2020-09-24 15:08:23,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 15:08:23,104 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-09-24 15:08:23,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:23,104 INFO L225 Difference]: With dead ends: 95 [2020-09-24 15:08:23,105 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 15:08:23,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:08:23,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 15:08:23,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 15:08:23,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 15:08:23,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 15:08:23,107 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2020-09-24 15:08:23,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:23,108 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 15:08:23,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:08:23,108 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 15:08:23,108 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 15:08:23,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:08:23,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 15:08:23,375 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 31 [2020-09-24 15:08:27,683 WARN L193 SmtUtils]: Spent 4.31 s on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-09-24 15:08:29,836 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification that was a NOOP. DAG size: 63 [2020-09-24 15:08:29,940 INFO L268 CegarLoopResult]: For program point L1(line 1) no Hoare annotation was computed. [2020-09-24 15:08:29,940 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-24 15:08:29,940 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-24 15:08:29,940 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 15:08:29,941 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-24 15:08:29,941 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-24 15:08:29,942 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~__tmp_155_0~0 |old(~__tmp_155_0~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~__return_136~0 |old(~__return_136~0)|) (= |old(#valid)| |#valid|)) [2020-09-24 15:08:29,942 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 15:08:29,942 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 15:08:29,942 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 15:08:29,942 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 15:08:29,942 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 15:08:29,942 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-09-24 15:08:29,943 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 15:08:29,943 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-24 15:08:29,943 INFO L268 CegarLoopResult]: For program point L5-3(lines 4 6) no Hoare annotation was computed. [2020-09-24 15:08:29,943 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-09-24 15:08:29,943 INFO L268 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-09-24 15:08:29,943 INFO L268 CegarLoopResult]: For program point L60(lines 60 86) no Hoare annotation was computed. [2020-09-24 15:08:29,943 INFO L268 CegarLoopResult]: For program point L27(lines 27 150) no Hoare annotation was computed. [2020-09-24 15:08:29,944 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 12 166) no Hoare annotation was computed. [2020-09-24 15:08:29,944 INFO L264 CegarLoopResult]: At program point L85(lines 60 86) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~main__index2~0 4294967296)))) (and (not (= main_~main____CPAchecker_TMP_0~1 0)) (= main_~__VERIFIER_assert__cond~0 1) (<= main_~main__index1~0 (+ (* 4294967296 (div (+ main_~main__index1~0 (- 1)) 4294967296)) 100000)) (<= main_~main__index2~0 (+ .cse0 99998)) (= main_~__tmp_1~0 1) (<= (+ main_~main__index1~0 .cse0 1) (+ main_~main__index2~0 (* 4294967296 (div main_~main__index1~0 4294967296)))))) [2020-09-24 15:08:29,944 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-24 15:08:29,944 INFO L268 CegarLoopResult]: For program point L19(lines 19 165) no Hoare annotation was computed. [2020-09-24 15:08:29,945 INFO L264 CegarLoopResult]: At program point L77(lines 44 137) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~main__index2~0 4294967296)))) (and (let ((.cse1 (= main_~__VERIFIER_assert__cond~0 1)) (.cse2 (= main_~__tmp_1~0 1))) (or (and (<= main_~main__index2~0 (+ .cse0 99999)) .cse1 (= main_~main____CPAchecker_TMP_0~0 1) .cse2) (and .cse1 (<= main_~main__index2~0 (+ .cse0 99998)) (not (= main_~__VERIFIER_assert__cond~1 0)) .cse2))) (<= (+ main_~main__index1~0 .cse0 1) (+ main_~main__index2~0 (* 4294967296 (div main_~main__index1~0 4294967296)))))) [2020-09-24 15:08:29,945 INFO L268 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-09-24 15:08:29,945 INFO L268 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-09-24 15:08:29,945 INFO L268 CegarLoopResult]: For program point L69(lines 69 78) no Hoare annotation was computed. [2020-09-24 15:08:29,945 INFO L268 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-09-24 15:08:29,945 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-09-24 15:08:29,946 INFO L264 CegarLoopResult]: At program point L144(lines 29 145) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~main__index2~0 4294967296)))) (and (<= main_~main__index2~0 (+ .cse0 99999)) (= main_~main__loop_entered~0 0) (= main_~main____CPAchecker_TMP_0~0 1) (<= (+ main_~main__index1~0 .cse0 1) (+ main_~main__index2~0 (* 4294967296 (div main_~main__index1~0 4294967296)))))) [2020-09-24 15:08:29,946 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-24 15:08:29,946 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-09-24 15:08:29,946 INFO L268 CegarLoopResult]: For program point L103-1(line 103) no Hoare annotation was computed. [2020-09-24 15:08:29,946 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-24 15:08:29,946 INFO L268 CegarLoopResult]: For program point L103-2(line 103) no Hoare annotation was computed. [2020-09-24 15:08:29,946 INFO L268 CegarLoopResult]: For program point L103-3(line 103) no Hoare annotation was computed. [2020-09-24 15:08:29,947 INFO L268 CegarLoopResult]: For program point L103-4(line 103) no Hoare annotation was computed. [2020-09-24 15:08:29,947 INFO L268 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-09-24 15:08:29,947 INFO L268 CegarLoopResult]: For program point L29(lines 29 145) no Hoare annotation was computed. [2020-09-24 15:08:29,947 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-09-24 15:08:29,947 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-24 15:08:29,947 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-24 15:08:29,947 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 12 166) no Hoare annotation was computed. [2020-09-24 15:08:29,947 INFO L268 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-09-24 15:08:29,947 INFO L268 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-09-24 15:08:29,948 INFO L268 CegarLoopResult]: For program point L38(lines 38 137) no Hoare annotation was computed. [2020-09-24 15:08:29,948 INFO L271 CegarLoopResult]: At program point L129(lines 96 130) the Hoare annotation is: true [2020-09-24 15:08:29,948 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 40) no Hoare annotation was computed. [2020-09-24 15:08:29,948 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 12 166) the Hoare annotation is: (and (= ~__tmp_155_0~0 |old(~__tmp_155_0~0)|) (= |old(#valid)| |#valid|)) [2020-09-24 15:08:29,948 INFO L264 CegarLoopResult]: At program point L154(lines 24 155) the Hoare annotation is: (or (= main_~main__loop_entered~0 0) (let ((.cse3 (div main_~main__index2~0 4294967296))) (and (let ((.cse2 (select |#memory_int| |main_~#main__array~0.base|))) (let ((.cse0 (select .cse2 (+ (* main_~main__index1~0 4) |main_~#main__array~0.offset| (* (div main_~main__index1~0 4294967296) (- 17179869184)))))) (<= .cse0 (let ((.cse1 (select .cse2 (+ (* main_~main__index2~0 4) |main_~#main__array~0.offset| (* .cse3 (- 17179869184)))))) (+ .cse1 (* 4294967296 (div (+ .cse0 (* .cse1 (- 1))) 4294967296))))))) (= main_~__VERIFIER_assert__cond~0 1) (<= main_~main__index1~0 (+ (* 4294967296 (div (+ main_~main__index1~0 (- 1)) 4294967296)) 100000)) (<= main_~main__index2~0 (+ (* 4294967296 .cse3) 99998)) (<= main_~main__index1~0 (+ main_~main__index2~0 (* 4294967296 (div (+ main_~main__index1~0 (* main_~main__index2~0 (- 1)) 99997) 4294967296)) 1)) (= main_~__tmp_1~0 1)))) [2020-09-24 15:08:29,948 INFO L268 CegarLoopResult]: For program point L55(lines 55 131) no Hoare annotation was computed. [2020-09-24 15:08:29,948 INFO L268 CegarLoopResult]: For program point L22(lines 22 160) no Hoare annotation was computed. [2020-09-24 15:08:29,948 INFO L268 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-09-24 15:08:29,949 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-24 15:08:29,949 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-09-24 15:08:29,949 INFO L268 CegarLoopResult]: For program point L14-2(line 14) no Hoare annotation was computed. [2020-09-24 15:08:29,949 INFO L268 CegarLoopResult]: For program point L14-3(line 14) no Hoare annotation was computed. [2020-09-24 15:08:29,949 INFO L268 CegarLoopResult]: For program point L14-4(line 14) no Hoare annotation was computed. [2020-09-24 15:08:29,949 INFO L268 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-09-24 15:08:29,949 INFO L268 CegarLoopResult]: For program point L14-5(line 14) no Hoare annotation was computed. [2020-09-24 15:08:29,949 INFO L268 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-09-24 15:08:29,949 INFO L268 CegarLoopResult]: For program point L14-6(line 14) no Hoare annotation was computed. [2020-09-24 15:08:29,949 INFO L268 CegarLoopResult]: For program point L14-7(line 14) no Hoare annotation was computed. [2020-09-24 15:08:29,949 INFO L268 CegarLoopResult]: For program point L14-8(line 14) no Hoare annotation was computed. [2020-09-24 15:08:29,950 INFO L268 CegarLoopResult]: For program point L14-9(line 14) no Hoare annotation was computed. [2020-09-24 15:08:29,950 INFO L268 CegarLoopResult]: For program point L14-10(line 14) no Hoare annotation was computed. [2020-09-24 15:08:29,950 INFO L268 CegarLoopResult]: For program point L14-11(line 14) no Hoare annotation was computed. [2020-09-24 15:08:29,950 INFO L268 CegarLoopResult]: For program point L14-12(line 14) no Hoare annotation was computed. [2020-09-24 15:08:29,950 INFO L268 CegarLoopResult]: For program point L14-13(line 14) no Hoare annotation was computed. [2020-09-24 15:08:29,950 INFO L268 CegarLoopResult]: For program point L14-14(line 14) no Hoare annotation was computed. [2020-09-24 15:08:29,950 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-24 15:08:29,950 INFO L268 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-09-24 15:08:29,950 INFO L268 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-09-24 15:08:29,950 INFO L268 CegarLoopResult]: For program point L48-1(line 48) no Hoare annotation was computed. [2020-09-24 15:08:29,951 INFO L268 CegarLoopResult]: For program point L48-2(lines 48 136) no Hoare annotation was computed. [2020-09-24 15:08:29,951 INFO L268 CegarLoopResult]: For program point L48-3(line 48) no Hoare annotation was computed. [2020-09-24 15:08:29,951 INFO L268 CegarLoopResult]: For program point L48-4(line 48) no Hoare annotation was computed. [2020-09-24 15:08:29,951 INFO L268 CegarLoopResult]: For program point L48-5(line 48) no Hoare annotation was computed. [2020-09-24 15:08:29,951 INFO L268 CegarLoopResult]: For program point L106(lines 106 118) no Hoare annotation was computed. [2020-09-24 15:08:29,951 INFO L268 CegarLoopResult]: For program point L48-6(line 48) no Hoare annotation was computed. [2020-09-24 15:08:29,951 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-24 15:08:29,951 INFO L268 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-09-24 15:08:29,951 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 108) no Hoare annotation was computed. [2020-09-24 15:08:29,951 INFO L264 CegarLoopResult]: At program point L90(lines 58 91) the Hoare annotation is: false [2020-09-24 15:08:29,952 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-24 15:08:29,952 INFO L268 CegarLoopResult]: For program point L24(lines 24 155) no Hoare annotation was computed. [2020-09-24 15:08:29,952 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-24 15:08:29,952 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 15:08:29,952 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-24 15:08:29,952 INFO L268 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-09-24 15:08:29,953 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 71) no Hoare annotation was computed. [2020-09-24 15:08:29,953 INFO L268 CegarLoopResult]: For program point L58(lines 58 91) no Hoare annotation was computed. [2020-09-24 15:08:29,953 INFO L264 CegarLoopResult]: At program point L149(lines 27 150) the Hoare annotation is: false [2020-09-24 15:08:29,953 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-24 15:08:29,953 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-24 15:08:29,953 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-24 15:08:29,953 INFO L268 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-09-24 15:08:29,954 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-09-24 15:08:29,954 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-24 15:08:29,954 INFO L264 CegarLoopResult]: At program point L117(lines 97 126) the Hoare annotation is: (let ((.cse10 (div main_~main__index1~0 4294967296))) (let ((.cse5 (* 4294967296 .cse10)) (.cse9 (div main_~main__index2~0 4294967296))) (let ((.cse2 (* 4294967296 .cse9)) (.cse0 (<= main_~main__index1~0 (+ .cse5 99999))) (.cse3 (= main_~__VERIFIER_assert__cond~0 1)) (.cse4 (= main_~__tmp_1~0 1))) (or (let ((.cse1 (+ main_~main__index2~0 .cse5))) (and .cse0 (not (= main_~__VERIFIER_assert__cond~2 0)) (<= .cse1 (+ main_~main__index1~0 .cse2 99999)) .cse3 .cse4 (<= (+ main_~main__index1~0 .cse2 1) .cse1))) (and (<= main_~main__index2~0 (+ .cse2 99999)) (let ((.cse8 (select |#memory_int| |main_~#main__array~0.base|))) (let ((.cse6 (select .cse8 (+ (* main_~main__index1~0 4) |main_~#main__array~0.offset| (* .cse10 (- 17179869184)))))) (<= .cse6 (let ((.cse7 (select .cse8 (+ (* main_~main__index2~0 4) |main_~#main__array~0.offset| (* .cse9 (- 17179869184)))))) (+ .cse7 (* 4294967296 (div (+ .cse6 (* .cse7 (- 1))) 4294967296))))))) .cse0 .cse3 (<= main_~main__index1~0 (+ (* 4294967296 (div (+ main_~main__index1~0 (- 1)) 4294967296)) 100000)) (<= main_~main__index1~0 (+ main_~main__index2~0 (* 4294967296 (div (+ main_~main__index1~0 (* main_~main__index2~0 (- 1)) 99997) 4294967296)) 1)) .cse4))))) [2020-09-24 15:08:29,954 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-24 15:08:29,954 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-24 15:08:29,955 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-24 15:08:29,955 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-09-24 15:08:29,955 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-24 15:08:29,955 INFO L268 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-09-24 15:08:29,955 INFO L268 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-09-24 15:08:29,977 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:29,979 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:29,979 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:29,979 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:29,980 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:29,980 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:29,981 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:29,981 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:29,982 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:29,983 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:29,983 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:29,983 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:29,985 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:29,985 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:29,986 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:29,986 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:29,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:08:29 BoogieIcfgContainer [2020-09-24 15:08:29,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:08:29,992 INFO L168 Benchmark]: Toolchain (without parser) took 27350.37 ms. Allocated memory was 138.9 MB in the beginning and 286.8 MB in the end (delta: 147.8 MB). Free memory was 101.8 MB in the beginning and 112.0 MB in the end (delta: -10.2 MB). Peak memory consumption was 137.7 MB. Max. memory is 7.1 GB. [2020-09-24 15:08:29,993 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 15:08:29,993 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.58 ms. Allocated memory is still 138.9 MB. Free memory was 101.2 MB in the beginning and 90.0 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2020-09-24 15:08:29,994 INFO L168 Benchmark]: Boogie Preprocessor took 129.43 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 90.0 MB in the beginning and 178.6 MB in the end (delta: -88.6 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-09-24 15:08:29,995 INFO L168 Benchmark]: RCFGBuilder took 540.68 ms. Allocated memory is still 201.3 MB. Free memory was 178.6 MB in the beginning and 153.8 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-09-24 15:08:29,996 INFO L168 Benchmark]: TraceAbstraction took 26323.00 ms. Allocated memory was 201.3 MB in the beginning and 286.8 MB in the end (delta: 85.5 MB). Free memory was 153.1 MB in the beginning and 112.0 MB in the end (delta: 41.1 MB). Peak memory consumption was 126.6 MB. Max. memory is 7.1 GB. [2020-09-24 15:08:29,999 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 348.58 ms. Allocated memory is still 138.9 MB. Free memory was 101.2 MB in the beginning and 90.0 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.43 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 90.0 MB in the beginning and 178.6 MB in the end (delta: -88.6 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 540.68 ms. Allocated memory is still 201.3 MB. Free memory was 178.6 MB in the beginning and 153.8 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26323.00 ms. Allocated memory was 201.3 MB in the beginning and 286.8 MB in the end (delta: 85.5 MB). Free memory was 153.1 MB in the beginning and 112.0 MB in the end (delta: 41.1 MB). Peak memory consumption was 126.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 40]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 108]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 71]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: ((((main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999 && __VERIFIER_assert__cond == 1) && main____CPAchecker_TMP_0 == 1) && __tmp_1 == 1) || (((__VERIFIER_assert__cond == 1 && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99998) && !(__VERIFIER_assert__cond == 0)) && __tmp_1 == 1)) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) - InvariantResult [Line: 24]: Loop Invariant [2020-09-24 15:08:30,011 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:30,011 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:30,011 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:30,011 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:30,012 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:30,012 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:30,013 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:30,013 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: main__loop_entered == 0 || (((((unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] <= unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 4294967296 * ((unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] * -1) / 4294967296) && __VERIFIER_assert__cond == 1) && main__index1 <= 4294967296 * ((main__index1 + -1) / 4294967296) + 100000) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99998) && main__index1 <= main__index2 + 4294967296 * ((main__index1 + main__index2 * -1 + 99997) / 4294967296) + 1) && __tmp_1 == 1) - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 97]: Loop Invariant [2020-09-24 15:08:30,014 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:30,014 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:30,014 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:30,015 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:30,016 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:30,016 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:30,016 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 15:08:30,016 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((((main__index1 <= 4294967296 * (main__index1 / 4294967296) + 99999 && !(__VERIFIER_assert__cond == 0)) && main__index2 + 4294967296 * (main__index1 / 4294967296) <= main__index1 + 4294967296 * (main__index2 / 4294967296) + 99999) && __VERIFIER_assert__cond == 1) && __tmp_1 == 1) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296)) || ((((((main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999 && unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] <= unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 4294967296 * ((unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] * -1) / 4294967296)) && main__index1 <= 4294967296 * (main__index1 / 4294967296) + 99999) && __VERIFIER_assert__cond == 1) && main__index1 <= 4294967296 * ((main__index1 + -1) / 4294967296) + 100000) && main__index1 <= main__index2 + 4294967296 * ((main__index1 + main__index2 * -1 + 99997) / 4294967296) + 1) && __tmp_1 == 1) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: ((((!(main____CPAchecker_TMP_0 == 0) && __VERIFIER_assert__cond == 1) && main__index1 <= 4294967296 * ((main__index1 + -1) / 4294967296) + 100000) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99998) && __tmp_1 == 1) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999 && main__loop_entered == 0) && main____CPAchecker_TMP_0 == 1) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 108 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.3s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 15.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 692 SDtfs, 1018 SDslu, 1426 SDs, 0 SdLazy, 1343 SolverSat, 48 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 11.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 261 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 22 NumberOfFragments, 447 HoareAnnotationTreeSize, 12 FomulaSimplifications, 1425 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 12 FomulaSimplificationsInter, 305 FormulaSimplificationTreeSizeReductionInter, 6.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 407 NumberOfCodeBlocks, 407 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 398 ConstructedInterpolants, 0 QuantifiedInterpolants, 321262 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 9/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...