/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 16:36:26,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 16:36:26,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 16:36:26,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 16:36:26,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 16:36:26,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 16:36:26,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 16:36:26,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 16:36:26,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 16:36:26,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 16:36:26,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 16:36:26,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 16:36:26,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 16:36:26,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 16:36:26,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 16:36:26,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 16:36:26,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 16:36:26,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 16:36:26,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 16:36:26,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 16:36:26,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 16:36:26,951 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 16:36:26,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 16:36:26,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 16:36:26,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 16:36:26,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 16:36:26,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 16:36:26,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 16:36:26,965 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 16:36:26,980 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 16:36:26,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 16:36:26,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 16:36:26,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 16:36:26,982 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 16:36:26,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 16:36:26,983 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 16:36:26,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 16:36:26,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 16:36:26,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 16:36:26,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 16:36:26,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 16:36:26,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 16:36:26,984 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 16:36:26,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 16:36:26,986 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 16:36:26,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 16:36:26,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 16:36:26,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 16:36:26,986 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 16:36:26,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 16:36:26,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:36:26,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 16:36:26,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 16:36:26,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 16:36:26,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 16:36:26,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:26,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 16:36:26,988 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 16:36:26,989 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 16:36:27,333 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 16:36:27,351 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 16:36:27,356 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 16:36:27,357 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 16:36:27,357 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 16:36:27,358 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label36.c [2020-07-21 16:36:27,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4f924360/215fa3d956d64bc4b2813b8cec52b490/FLAG5922bdff6 [2020-07-21 16:36:28,089 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 16:36:28,090 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label36.c [2020-07-21 16:36:28,105 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4f924360/215fa3d956d64bc4b2813b8cec52b490/FLAG5922bdff6 [2020-07-21 16:36:28,366 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4f924360/215fa3d956d64bc4b2813b8cec52b490 [2020-07-21 16:36:28,378 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 16:36:28,383 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 16:36:28,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 16:36:28,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 16:36:28,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 16:36:28,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:36:28" (1/1) ... [2020-07-21 16:36:28,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18f0dfff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:28, skipping insertion in model container [2020-07-21 16:36:28,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:36:28" (1/1) ... [2020-07-21 16:36:28,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 16:36:28,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 16:36:28,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:36:29,006 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 16:36:29,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:36:29,149 INFO L208 MainTranslator]: Completed translation [2020-07-21 16:36:29,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:29 WrapperNode [2020-07-21 16:36:29,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 16:36:29,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 16:36:29,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 16:36:29,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 16:36:29,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:29" (1/1) ... [2020-07-21 16:36:29,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:29" (1/1) ... [2020-07-21 16:36:29,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:29" (1/1) ... [2020-07-21 16:36:29,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:29" (1/1) ... [2020-07-21 16:36:29,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:29" (1/1) ... [2020-07-21 16:36:29,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:29" (1/1) ... [2020-07-21 16:36:29,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:29" (1/1) ... [2020-07-21 16:36:29,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 16:36:29,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 16:36:29,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 16:36:29,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 16:36:29,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-21 16:36:29,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 16:36:29,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 16:36:29,339 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 16:36:29,339 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 16:36:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 16:36:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 16:36:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 16:36:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 16:36:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 16:36:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 16:36:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 16:36:30,635 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 16:36:30,636 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 16:36:30,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:36:30 BoogieIcfgContainer [2020-07-21 16:36:30,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 16:36:30,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 16:36:30,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 16:36:30,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 16:36:30,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:36:28" (1/3) ... [2020-07-21 16:36:30,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e79dc8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:36:30, skipping insertion in model container [2020-07-21 16:36:30,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:29" (2/3) ... [2020-07-21 16:36:30,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e79dc8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:36:30, skipping insertion in model container [2020-07-21 16:36:30,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:36:30" (3/3) ... [2020-07-21 16:36:30,660 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label36.c [2020-07-21 16:36:30,674 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 16:36:30,687 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 16:36:30,706 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 16:36:30,746 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 16:36:30,747 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 16:36:30,747 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 16:36:30,748 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 16:36:30,748 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 16:36:30,748 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 16:36:30,748 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 16:36:30,748 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 16:36:30,779 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 16:36:30,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-21 16:36:30,792 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:36:30,794 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] [2020-07-21 16:36:30,794 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:36:30,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:36:30,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1093393358, now seen corresponding path program 1 times [2020-07-21 16:36:30,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:36:30,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2065186751] [2020-07-21 16:36:30,814 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:30,965 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:36:30,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:36:30,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:36:30,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:36:31,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:36:31,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:36:31,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2065186751] [2020-07-21 16:36:31,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:36:31,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:36:31,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455713615] [2020-07-21 16:36:31,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:36:31,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:36:31,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:36:31,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:36:31,125 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 16:36:32,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:36:32,170 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-21 16:36:32,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:36:32,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-07-21 16:36:32,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:36:32,188 INFO L225 Difference]: With dead ends: 571 [2020-07-21 16:36:32,189 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 16:36:32,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:36:32,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 16:36:32,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 16:36:32,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 16:36:32,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2020-07-21 16:36:32,276 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 45 [2020-07-21 16:36:32,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:36:32,277 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2020-07-21 16:36:32,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:36:32,277 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2020-07-21 16:36:32,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-21 16:36:32,284 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:36:32,284 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 16:36:32,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:32,498 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:36:32,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:36:32,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1074039414, now seen corresponding path program 1 times [2020-07-21 16:36:32,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:36:32,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [950410684] [2020-07-21 16:36:32,500 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:32,593 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:36:32,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:36:32,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:36:32,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:36:32,632 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:36:32,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:36:32,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [950410684] [2020-07-21 16:36:32,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:36:32,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:36:32,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395642244] [2020-07-21 16:36:32,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:36:32,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:36:32,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:36:32,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:36:32,636 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand 3 states. [2020-07-21 16:36:33,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:36:33,304 INFO L93 Difference]: Finished difference Result 725 states and 1001 transitions. [2020-07-21 16:36:33,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:36:33,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-07-21 16:36:33,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:36:33,318 INFO L225 Difference]: With dead ends: 725 [2020-07-21 16:36:33,319 INFO L226 Difference]: Without dead ends: 437 [2020-07-21 16:36:33,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:36:33,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-07-21 16:36:33,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2020-07-21 16:36:33,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-21 16:36:33,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 593 transitions. [2020-07-21 16:36:33,377 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 593 transitions. Word has length 115 [2020-07-21 16:36:33,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:36:33,378 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 593 transitions. [2020-07-21 16:36:33,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:36:33,381 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 593 transitions. [2020-07-21 16:36:33,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-07-21 16:36:33,387 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:36:33,387 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 16:36:33,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:33,601 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:36:33,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:36:33,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1870718803, now seen corresponding path program 1 times [2020-07-21 16:36:33,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:36:33,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [649891257] [2020-07-21 16:36:33,605 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:33,679 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:36:33,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:36:33,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:36:33,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:36:33,715 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:36:33,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:36:33,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [649891257] [2020-07-21 16:36:33,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:36:33,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:36:33,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282132122] [2020-07-21 16:36:33,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:36:33,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:36:33,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:36:33,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:36:33,718 INFO L87 Difference]: Start difference. First operand 437 states and 593 transitions. Second operand 3 states. [2020-07-21 16:36:34,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:36:34,488 INFO L93 Difference]: Finished difference Result 1011 states and 1407 transitions. [2020-07-21 16:36:34,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:36:34,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-07-21 16:36:34,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:36:34,495 INFO L225 Difference]: With dead ends: 1011 [2020-07-21 16:36:34,495 INFO L226 Difference]: Without dead ends: 580 [2020-07-21 16:36:34,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:36:34,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-21 16:36:34,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-07-21 16:36:34,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-21 16:36:34,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 807 transitions. [2020-07-21 16:36:34,522 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 807 transitions. Word has length 122 [2020-07-21 16:36:34,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:36:34,523 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 807 transitions. [2020-07-21 16:36:34,523 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:36:34,523 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 807 transitions. [2020-07-21 16:36:34,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-21 16:36:34,526 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:36:34,527 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:36:34,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:34,742 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:36:34,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:36:34,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1404562463, now seen corresponding path program 1 times [2020-07-21 16:36:34,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:36:34,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1563782834] [2020-07-21 16:36:34,745 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:34,826 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:36:34,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:36:34,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:36:34,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:36:34,861 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:36:34,861 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:36:34,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1563782834] [2020-07-21 16:36:34,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:36:34,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:36:34,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398542529] [2020-07-21 16:36:34,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:36:34,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:36:34,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:36:34,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:36:34,864 INFO L87 Difference]: Start difference. First operand 580 states and 807 transitions. Second operand 3 states. [2020-07-21 16:36:35,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:36:35,557 INFO L93 Difference]: Finished difference Result 1154 states and 1634 transitions. [2020-07-21 16:36:35,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:36:35,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-07-21 16:36:35,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:36:35,565 INFO L225 Difference]: With dead ends: 1154 [2020-07-21 16:36:35,565 INFO L226 Difference]: Without dead ends: 1152 [2020-07-21 16:36:35,566 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:36:35,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2020-07-21 16:36:35,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 866. [2020-07-21 16:36:35,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2020-07-21 16:36:35,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1248 transitions. [2020-07-21 16:36:35,602 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1248 transitions. Word has length 132 [2020-07-21 16:36:35,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:36:35,603 INFO L479 AbstractCegarLoop]: Abstraction has 866 states and 1248 transitions. [2020-07-21 16:36:35,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:36:35,603 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1248 transitions. [2020-07-21 16:36:35,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-07-21 16:36:35,610 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:36:35,610 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:36:35,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:35,826 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:36:35,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:36:35,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1402576581, now seen corresponding path program 1 times [2020-07-21 16:36:35,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:36:35,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633957311] [2020-07-21 16:36:35,828 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:36,062 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:36:36,062 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:36:36,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:36:36,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:36:36,136 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-21 16:36:36,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:36:36,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633957311] [2020-07-21 16:36:36,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:36:36,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:36:36,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631968051] [2020-07-21 16:36:36,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:36:36,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:36:36,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:36:36,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:36:36,140 INFO L87 Difference]: Start difference. First operand 866 states and 1248 transitions. Second operand 3 states. [2020-07-21 16:36:36,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:36:36,912 INFO L93 Difference]: Finished difference Result 2441 states and 3576 transitions. [2020-07-21 16:36:36,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:36:36,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 222 [2020-07-21 16:36:36,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:36:36,927 INFO L225 Difference]: With dead ends: 2441 [2020-07-21 16:36:36,927 INFO L226 Difference]: Without dead ends: 1581 [2020-07-21 16:36:36,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 219 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:36:36,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2020-07-21 16:36:36,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1581. [2020-07-21 16:36:36,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1581 states. [2020-07-21 16:36:37,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2156 transitions. [2020-07-21 16:36:37,004 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2156 transitions. Word has length 222 [2020-07-21 16:36:37,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:36:37,005 INFO L479 AbstractCegarLoop]: Abstraction has 1581 states and 2156 transitions. [2020-07-21 16:36:37,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:36:37,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2156 transitions. [2020-07-21 16:36:37,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-07-21 16:36:37,016 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:36:37,018 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:36:37,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:37,226 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:36:37,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:36:37,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1725044783, now seen corresponding path program 1 times [2020-07-21 16:36:37,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:36:37,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998344797] [2020-07-21 16:36:37,229 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:37,348 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:36:37,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:36:37,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:36:37,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:36:37,502 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 144 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:36:37,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:36:37,643 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 144 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:36:37,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998344797] [2020-07-21 16:36:37,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:36:37,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:36:37,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648674482] [2020-07-21 16:36:37,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:36:37,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:36:37,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:36:37,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:36:37,646 INFO L87 Difference]: Start difference. First operand 1581 states and 2156 transitions. Second operand 6 states. [2020-07-21 16:36:38,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:36:38,825 INFO L93 Difference]: Finished difference Result 3500 states and 4849 transitions. [2020-07-21 16:36:38,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:36:38,825 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 240 [2020-07-21 16:36:38,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:36:38,838 INFO L225 Difference]: With dead ends: 3500 [2020-07-21 16:36:38,839 INFO L226 Difference]: Without dead ends: 1925 [2020-07-21 16:36:38,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 476 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:36:38,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1925 states. [2020-07-21 16:36:38,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1925 to 1762. [2020-07-21 16:36:38,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1762 states. [2020-07-21 16:36:38,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2091 transitions. [2020-07-21 16:36:38,919 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2091 transitions. Word has length 240 [2020-07-21 16:36:38,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:36:38,920 INFO L479 AbstractCegarLoop]: Abstraction has 1762 states and 2091 transitions. [2020-07-21 16:36:38,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:36:38,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2091 transitions. [2020-07-21 16:36:38,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-07-21 16:36:38,932 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:36:38,933 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:36:39,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:39,147 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:36:39,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:36:39,147 INFO L82 PathProgramCache]: Analyzing trace with hash -335118642, now seen corresponding path program 1 times [2020-07-21 16:36:39,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:36:39,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808608821] [2020-07-21 16:36:39,149 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:39,331 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:36:39,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:36:39,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:36:39,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:36:39,456 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:36:39,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:36:39,715 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:36:39,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808608821] [2020-07-21 16:36:39,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:36:39,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 16:36:39,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345304441] [2020-07-21 16:36:39,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 16:36:39,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:36:39,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 16:36:39,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:36:39,719 INFO L87 Difference]: Start difference. First operand 1762 states and 2091 transitions. Second operand 7 states. [2020-07-21 16:36:41,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:36:41,184 INFO L93 Difference]: Finished difference Result 5058 states and 6269 transitions. [2020-07-21 16:36:41,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 16:36:41,185 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 251 [2020-07-21 16:36:41,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:36:41,199 INFO L225 Difference]: With dead ends: 5058 [2020-07-21 16:36:41,200 INFO L226 Difference]: Without dead ends: 2104 [2020-07-21 16:36:41,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 497 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 16:36:41,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2020-07-21 16:36:41,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 2060. [2020-07-21 16:36:41,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2060 states. [2020-07-21 16:36:41,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 2060 states and 2357 transitions. [2020-07-21 16:36:41,322 INFO L78 Accepts]: Start accepts. Automaton has 2060 states and 2357 transitions. Word has length 251 [2020-07-21 16:36:41,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:36:41,323 INFO L479 AbstractCegarLoop]: Abstraction has 2060 states and 2357 transitions. [2020-07-21 16:36:41,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 16:36:41,323 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states and 2357 transitions. [2020-07-21 16:36:41,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-07-21 16:36:41,332 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:36:41,332 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 16:36:41,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:41,546 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:36:41,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:36:41,546 INFO L82 PathProgramCache]: Analyzing trace with hash 2108247554, now seen corresponding path program 1 times [2020-07-21 16:36:41,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:36:41,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [228993462] [2020-07-21 16:36:41,548 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:41,712 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:36:41,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:36:41,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:36:41,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:36:41,788 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-21 16:36:41,788 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:36:41,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [228993462] [2020-07-21 16:36:41,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:36:41,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:36:41,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101819331] [2020-07-21 16:36:41,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:36:41,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:36:41,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:36:41,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:36:41,792 INFO L87 Difference]: Start difference. First operand 2060 states and 2357 transitions. Second operand 3 states. [2020-07-21 16:36:42,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:36:42,316 INFO L93 Difference]: Finished difference Result 2207 states and 2504 transitions. [2020-07-21 16:36:42,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:36:42,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 301 [2020-07-21 16:36:42,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:36:42,328 INFO L225 Difference]: With dead ends: 2207 [2020-07-21 16:36:42,329 INFO L226 Difference]: Without dead ends: 2058 [2020-07-21 16:36:42,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:36:42,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2020-07-21 16:36:42,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 2058. [2020-07-21 16:36:42,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2058 states. [2020-07-21 16:36:42,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2058 states to 2058 states and 2345 transitions. [2020-07-21 16:36:42,393 INFO L78 Accepts]: Start accepts. Automaton has 2058 states and 2345 transitions. Word has length 301 [2020-07-21 16:36:42,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:36:42,394 INFO L479 AbstractCegarLoop]: Abstraction has 2058 states and 2345 transitions. [2020-07-21 16:36:42,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:36:42,394 INFO L276 IsEmpty]: Start isEmpty. Operand 2058 states and 2345 transitions. [2020-07-21 16:36:42,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2020-07-21 16:36:42,405 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:36:42,405 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 16:36:42,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:42,620 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:36:42,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:36:42,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1499776183, now seen corresponding path program 1 times [2020-07-21 16:36:42,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:36:42,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2054495119] [2020-07-21 16:36:42,622 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:42,831 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:36:42,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:36:42,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:36:42,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:36:42,927 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-07-21 16:36:42,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:36:42,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2054495119] [2020-07-21 16:36:42,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:36:42,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:36:42,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14310810] [2020-07-21 16:36:42,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:36:42,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:36:42,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:36:42,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:36:42,930 INFO L87 Difference]: Start difference. First operand 2058 states and 2345 transitions. Second operand 3 states. [2020-07-21 16:36:43,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:36:43,423 INFO L93 Difference]: Finished difference Result 2058 states and 2345 transitions. [2020-07-21 16:36:43,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:36:43,427 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 370 [2020-07-21 16:36:43,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:36:43,429 INFO L225 Difference]: With dead ends: 2058 [2020-07-21 16:36:43,429 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 16:36:43,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:36:43,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 16:36:43,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 16:36:43,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 16:36:43,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 16:36:43,434 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 370 [2020-07-21 16:36:43,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:36:43,434 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 16:36:43,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:36:43,435 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 16:36:43,435 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 16:36:43,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:43,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 16:36:44,041 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 71 [2020-07-21 16:36:44,767 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 59 [2020-07-21 16:36:44,902 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 30 [2020-07-21 16:36:45,033 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 30 [2020-07-21 16:36:45,038 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:36:45,038 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|)) [2020-07-21 16:36:45,038 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:36:45,039 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 16:36:45,039 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,039 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,039 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,039 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,039 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,039 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,039 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 16:36:45,039 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 16:36:45,040 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 16:36:45,040 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 16:36:45,040 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 16:36:45,040 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 16:36:45,040 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 16:36:45,040 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 16:36:45,040 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 16:36:45,040 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 16:36:45,040 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 16:36:45,040 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,041 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,041 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,041 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,041 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,041 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 16:36:45,041 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 16:36:45,041 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 16:36:45,041 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 16:36:45,042 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 16:36:45,042 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 16:36:45,042 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 16:36:45,042 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 16:36:45,042 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 16:36:45,042 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 16:36:45,042 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 16:36:45,042 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 16:36:45,042 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 16:36:45,043 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 121) no Hoare annotation was computed. [2020-07-21 16:36:45,043 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 16:36:45,043 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,043 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,043 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,043 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,043 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,044 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 16:36:45,044 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 16:36:45,044 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 16:36:45,044 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 16:36:45,044 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 16:36:45,044 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 16:36:45,044 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 16:36:45,044 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 16:36:45,044 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 16:36:45,045 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 16:36:45,045 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,045 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,045 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,045 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,045 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,045 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 16:36:45,045 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 16:36:45,046 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 16:36:45,046 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 16:36:45,046 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 16:36:45,046 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 16:36:45,046 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 16:36:45,046 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 16:36:45,046 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 16:36:45,046 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 16:36:45,046 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 16:36:45,047 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 16:36:45,047 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 16:36:45,047 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,047 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,047 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,047 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,047 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,047 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 16:36:45,047 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 16:36:45,048 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 16:36:45,048 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 16:36:45,048 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 16:36:45,048 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 16:36:45,048 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 16:36:45,048 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 16:36:45,048 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 16:36:45,048 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,049 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,049 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,049 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,049 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,049 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,049 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,049 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 16:36:45,049 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 16:36:45,050 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 16:36:45,050 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 16:36:45,050 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 16:36:45,050 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 16:36:45,050 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 16:36:45,050 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 16:36:45,050 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 16:36:45,050 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 16:36:45,051 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 16:36:45,051 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 16:36:45,051 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 16:36:45,051 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,051 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,051 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,051 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,052 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 16:36:45,052 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,052 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,052 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 16:36:45,052 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 16:36:45,052 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 16:36:45,052 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 16:36:45,052 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 16:36:45,053 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 16:36:45,053 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 16:36:45,053 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 16:36:45,053 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 16:36:45,053 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 16:36:45,053 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 16:36:45,053 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 16:36:45,054 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 16:36:45,054 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,054 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,054 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,054 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,054 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,054 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,054 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 16:36:45,055 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 16:36:45,055 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 16:36:45,055 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 16:36:45,055 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 16:36:45,055 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 16:36:45,055 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 16:36:45,055 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 16:36:45,055 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 16:36:45,056 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 16:36:45,056 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 16:36:45,056 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse10 (<= |old(~a10~0)| ~a10~0)) (.cse11 (<= ~a19~0 |old(~a19~0)|))) (let ((.cse2 (not (< 218 |old(~a1~0)|))) (.cse6 (< 218 ~a1~0)) (.cse7 (and (<= 8 ~a19~0) .cse10 .cse11)) (.cse8 (not (<= 8 |old(~a19~0)|))) (.cse0 (not (< |old(~a19~0)| 10))) (.cse5 (not (<= 2 |old(~a10~0)|))) (.cse9 (not (<= |old(~a10~0)| 2))) (.cse1 (not (<= |old(~a10~0)| 3))) (.cse3 (not (<= |old(~a19~0)| 8))) (.cse4 (and .cse10 .cse11))) (and (or .cse0 .cse1 (<= ~a10~0 3)) (or .cse2 .cse3 .cse4 .cse5) (or .cse2 .cse0 .cse6 .cse5) (or .cse7 .cse3 .cse8) (or (<= ~a10~0 0) (not (<= |old(~a10~0)| 0))) (or .cse2 .cse6 .cse9) (or .cse7 .cse8 .cse9) (or .cse0 (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) .cse10 (< ~a19~0 10)) .cse5) (or (not (<= |old(~a19~0)| 6)) .cse4) (or (<= ~a10~0 2) .cse9) (or .cse1 .cse3 .cse4)))) [2020-07-21 16:36:45,056 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 16:36:45,056 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 16:36:45,056 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 16:36:45,057 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,057 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,057 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,057 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,057 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,057 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,057 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 16:36:45,057 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 16:36:45,057 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 16:36:45,058 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 16:36:45,058 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 16:36:45,058 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 16:36:45,058 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 16:36:45,058 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 16:36:45,058 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 16:36:45,058 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 16:36:45,058 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 16:36:45,058 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 16:36:45,059 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 16:36:45,059 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,059 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,059 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,059 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,059 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,059 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,060 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 16:36:45,060 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 16:36:45,060 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 16:36:45,060 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 16:36:45,060 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 16:36:45,060 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 16:36:45,060 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 16:36:45,060 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 16:36:45,060 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 16:36:45,061 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 16:36:45,061 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 16:36:45,061 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 16:36:45,061 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,061 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,061 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,061 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,061 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,061 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:36:45,062 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 16:36:45,062 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 16:36:45,062 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 16:36:45,062 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 16:36:45,062 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 16:36:45,062 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 16:36:45,062 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 16:36:45,062 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 16:36:45,062 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 16:36:45,063 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 16:36:45,063 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 16:36:45,063 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 16:36:45,063 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:36:45,063 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 9 ~a19~0) (< ~a19~0 10)) [2020-07-21 16:36:45,063 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:36:45,063 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:36:45,063 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (< |old(~a19~0)| 10)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= ~a10~0 0) (<= 9 ~a19~0) (<= |old(~a10~0)| ~a10~0) (< ~a19~0 10))) [2020-07-21 16:36:45,064 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 16:36:45,064 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 8))) (or (not (< |old(~a19~0)| 10)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (and .cse0 (< 218 ~a1~0)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (and (<= 8 ~a19~0) (< ~a19~0 10)) (and .cse0 (<= ~a10~0 3)))) [2020-07-21 16:36:45,064 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 16:36:45,064 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 16:36:45,064 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 8))) (or (not (< |old(~a19~0)| 10)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (and .cse0 (< 218 ~a1~0)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (and (<= 8 ~a19~0) (< ~a19~0 10)) (and .cse0 (<= ~a10~0 3)))) [2020-07-21 16:36:45,064 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 16:36:45,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:36:45 BoogieIcfgContainer [2020-07-21 16:36:45,088 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 16:36:45,090 INFO L168 Benchmark]: Toolchain (without parser) took 16709.50 ms. Allocated memory was 145.2 MB in the beginning and 497.0 MB in the end (delta: 351.8 MB). Free memory was 101.2 MB in the beginning and 283.5 MB in the end (delta: -182.3 MB). Peak memory consumption was 305.9 MB. Max. memory is 7.1 GB. [2020-07-21 16:36:45,090 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 16:36:45,091 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.73 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 100.8 MB in the beginning and 170.1 MB in the end (delta: -69.3 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2020-07-21 16:36:45,092 INFO L168 Benchmark]: Boogie Preprocessor took 110.44 ms. Allocated memory is still 203.9 MB. Free memory was 170.1 MB in the beginning and 165.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 16:36:45,093 INFO L168 Benchmark]: RCFGBuilder took 1384.57 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 165.2 MB in the beginning and 180.8 MB in the end (delta: -15.6 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. [2020-07-21 16:36:45,094 INFO L168 Benchmark]: TraceAbstraction took 14438.86 ms. Allocated memory was 237.0 MB in the beginning and 497.0 MB in the end (delta: 260.0 MB). Free memory was 180.8 MB in the beginning and 283.5 MB in the end (delta: -102.7 MB). Peak memory consumption was 293.7 MB. Max. memory is 7.1 GB. [2020-07-21 16:36:45,097 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 763.73 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 100.8 MB in the beginning and 170.1 MB in the end (delta: -69.3 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.44 ms. Allocated memory is still 203.9 MB. Free memory was 170.1 MB in the beginning and 165.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1384.57 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 165.2 MB in the beginning and 180.8 MB in the end (delta: -15.6 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14438.86 ms. Allocated memory was 237.0 MB in the beginning and 497.0 MB in the end (delta: 260.0 MB). Free memory was 180.8 MB in the beginning and 283.5 MB in the end (delta: -102.7 MB). Peak memory consumption was 293.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 121]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: ((((((!(\old(a19) < 10) || a19 <= 6) || !(\old(a10) <= 0)) || (a19 <= 8 && 218 < a1)) || !(9 <= \old(a19))) || a10 <= 2) || (8 <= a19 && a19 < 10)) || (a19 <= 8 && a10 <= 3) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.9s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 713 SDtfs, 1626 SDslu, 157 SDs, 0 SdLazy, 4446 SolverSat, 884 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2293 GetRequests, 2265 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2060occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 493 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 72 PreInvPairs, 134 NumberOfFragments, 290 HoareAnnotationTreeSize, 72 FomulaSimplifications, 3102 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2039 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1798 NumberOfCodeBlocks, 1798 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2278 ConstructedInterpolants, 0 QuantifiedInterpolants, 1152842 SizeOfPredicates, 15 NumberOfNonLiveVariables, 3220 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 1461/1469 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...