/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 DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 22:07:38,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 22:07:38,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 22:07:38,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 22:07:38,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 22:07:38,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 22:07:38,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 22:07:38,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 22:07:38,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 22:07:38,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 22:07:38,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 22:07:38,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 22:07:38,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 22:07:38,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 22:07:38,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 22:07:38,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 22:07:38,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 22:07:38,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 22:07:38,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 22:07:38,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 22:07:38,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 22:07:38,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 22:07:38,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 22:07:38,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 22:07:38,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 22:07:38,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 22:07:38,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 22:07:38,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 22:07:38,834 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 [2020-07-20 22:07:38,848 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 22:07:38,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 22:07:38,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 22:07:38,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 22:07:38,850 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 22:07:38,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 22:07:38,850 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 22:07:38,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 22:07:38,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 22:07:38,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 22:07:38,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 22:07:38,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 22:07:38,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 22:07:38,852 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 22:07:38,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 22:07:38,852 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 22:07:38,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 22:07:38,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 22:07:38,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 22:07:38,853 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 22:07:38,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 22:07:38,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:07:38,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 22:07:38,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 22:07:38,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 22:07:38,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 22:07:38,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:07:38,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 22:07:38,855 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 22:07:38,855 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 -> DAGSIZE 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 -> 4 [2020-07-20 22:07:39,157 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 22:07:39,171 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 22:07:39,175 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 22:07:39,176 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 22:07:39,177 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 22:07:39,177 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label40.c [2020-07-20 22:07:39,253 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31aa5c078/cb8a549c0c9e4bae89ab9b6fc2cad78b/FLAGfb9eb8859 [2020-07-20 22:07:39,845 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 22:07:39,846 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label40.c [2020-07-20 22:07:39,864 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31aa5c078/cb8a549c0c9e4bae89ab9b6fc2cad78b/FLAGfb9eb8859 [2020-07-20 22:07:40,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31aa5c078/cb8a549c0c9e4bae89ab9b6fc2cad78b [2020-07-20 22:07:40,094 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 22:07:40,097 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 22:07:40,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 22:07:40,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 22:07:40,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 22:07:40,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:07:40" (1/1) ... [2020-07-20 22:07:40,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b2290a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:40, skipping insertion in model container [2020-07-20 22:07:40,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:07:40" (1/1) ... [2020-07-20 22:07:40,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 22:07:40,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 22:07:40,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:07:40,680 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 22:07:40,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:07:40,833 INFO L208 MainTranslator]: Completed translation [2020-07-20 22:07:40,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:40 WrapperNode [2020-07-20 22:07:40,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 22:07:40,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 22:07:40,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 22:07:40,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 22:07:40,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:40" (1/1) ... [2020-07-20 22:07:40,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:40" (1/1) ... [2020-07-20 22:07:40,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:40" (1/1) ... [2020-07-20 22:07:40,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:40" (1/1) ... [2020-07-20 22:07:40,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:40" (1/1) ... [2020-07-20 22:07:40,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:40" (1/1) ... [2020-07-20 22:07:40,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:40" (1/1) ... [2020-07-20 22:07:40,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 22:07:40,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 22:07:40,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 22:07:40,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 22:07:40,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:40" (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 [2020-07-20 22:07:41,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 22:07:41,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 22:07:41,054 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 22:07:41,055 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 22:07:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 22:07:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 22:07:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 22:07:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 22:07:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 22:07:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 22:07:41,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 22:07:42,565 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 22:07:42,566 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 22:07:42,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:07:42 BoogieIcfgContainer [2020-07-20 22:07:42,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 22:07:42,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 22:07:42,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 22:07:42,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 22:07:42,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:07:40" (1/3) ... [2020-07-20 22:07:42,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741bf614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:07:42, skipping insertion in model container [2020-07-20 22:07:42,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:40" (2/3) ... [2020-07-20 22:07:42,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741bf614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:07:42, skipping insertion in model container [2020-07-20 22:07:42,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:07:42" (3/3) ... [2020-07-20 22:07:42,581 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label40.c [2020-07-20 22:07:42,590 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 22:07:42,597 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 22:07:42,610 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 22:07:42,637 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 22:07:42,638 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 22:07:42,638 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 22:07:42,638 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 22:07:42,639 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 22:07:42,639 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 22:07:42,639 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 22:07:42,639 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 22:07:42,664 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-20 22:07:42,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-20 22:07:42,673 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:07:42,675 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:07:42,675 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:07:42,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:07:42,682 INFO L82 PathProgramCache]: Analyzing trace with hash -576444522, now seen corresponding path program 1 times [2020-07-20 22:07:42,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:07:42,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857369321] [2020-07-20 22:07:42,692 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 22:07:42,814 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:07:42,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:07:42,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:07:42,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:07:42,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:07:42,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:07:42,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857369321] [2020-07-20 22:07:42,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:07:42,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:07:42,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891390153] [2020-07-20 22:07:42,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:07:42,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:07:42,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:07:42,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:07:42,925 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-20 22:07:43,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:07:43,966 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-20 22:07:43,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:07:43,968 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2020-07-20 22:07:43,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:07:43,993 INFO L225 Difference]: With dead ends: 571 [2020-07-20 22:07:43,994 INFO L226 Difference]: Without dead ends: 294 [2020-07-20 22:07:44,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:07:44,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-20 22:07:44,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-20 22:07:44,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-20 22:07:44,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2020-07-20 22:07:44,074 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 55 [2020-07-20 22:07:44,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:07:44,074 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2020-07-20 22:07:44,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:07:44,075 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2020-07-20 22:07:44,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-20 22:07:44,081 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:07:44,082 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, 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] [2020-07-20 22:07:44,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:07:44,296 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:07:44,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:07:44,298 INFO L82 PathProgramCache]: Analyzing trace with hash -913027315, now seen corresponding path program 1 times [2020-07-20 22:07:44,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:07:44,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308898895] [2020-07-20 22:07:44,300 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 22:07:44,401 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:07:44,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:07:44,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:07:44,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:07:44,447 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:07:44,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:07:44,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308898895] [2020-07-20 22:07:44,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:07:44,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:07:44,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196458789] [2020-07-20 22:07:44,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:07:44,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:07:44,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:07:44,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:07:44,452 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 3 states. [2020-07-20 22:07:45,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:07:45,151 INFO L93 Difference]: Finished difference Result 868 states and 1337 transitions. [2020-07-20 22:07:45,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:07:45,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2020-07-20 22:07:45,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:07:45,162 INFO L225 Difference]: With dead ends: 868 [2020-07-20 22:07:45,163 INFO L226 Difference]: Without dead ends: 580 [2020-07-20 22:07:45,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:07:45,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-20 22:07:45,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 437. [2020-07-20 22:07:45,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-20 22:07:45,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 623 transitions. [2020-07-20 22:07:45,196 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 623 transitions. Word has length 128 [2020-07-20 22:07:45,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:07:45,197 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 623 transitions. [2020-07-20 22:07:45,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:07:45,197 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 623 transitions. [2020-07-20 22:07:45,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-07-20 22:07:45,200 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:07:45,201 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, 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] [2020-07-20 22:07:45,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:07:45,415 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:07:45,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:07:45,416 INFO L82 PathProgramCache]: Analyzing trace with hash 952189433, now seen corresponding path program 1 times [2020-07-20 22:07:45,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:07:45,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1597649506] [2020-07-20 22:07:45,417 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 22:07:45,506 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:07:45,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:07:45,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:07:45,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:07:45,545 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:07:45,546 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:07:45,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1597649506] [2020-07-20 22:07:45,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:07:45,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:07:45,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029583803] [2020-07-20 22:07:45,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:07:45,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:07:45,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:07:45,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:07:45,549 INFO L87 Difference]: Start difference. First operand 437 states and 623 transitions. Second operand 3 states. [2020-07-20 22:07:46,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:07:46,279 INFO L93 Difference]: Finished difference Result 1154 states and 1697 transitions. [2020-07-20 22:07:46,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:07:46,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 134 [2020-07-20 22:07:46,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:07:46,291 INFO L225 Difference]: With dead ends: 1154 [2020-07-20 22:07:46,291 INFO L226 Difference]: Without dead ends: 723 [2020-07-20 22:07:46,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:07:46,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2020-07-20 22:07:46,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 580. [2020-07-20 22:07:46,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-20 22:07:46,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 837 transitions. [2020-07-20 22:07:46,329 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 837 transitions. Word has length 134 [2020-07-20 22:07:46,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:07:46,330 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 837 transitions. [2020-07-20 22:07:46,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:07:46,330 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 837 transitions. [2020-07-20 22:07:46,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-20 22:07:46,338 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:07:46,338 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:07:46,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:07:46,556 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:07:46,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:07:46,557 INFO L82 PathProgramCache]: Analyzing trace with hash -296475546, now seen corresponding path program 1 times [2020-07-20 22:07:46,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:07:46,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700905191] [2020-07-20 22:07:46,558 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 22:07:46,652 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:07:46,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:07:46,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:07:46,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:07:46,753 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:07:46,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:07:46,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700905191] [2020-07-20 22:07:46,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:07:46,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:07:46,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220179062] [2020-07-20 22:07:46,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:07:46,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:07:46,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:07:46,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:07:46,758 INFO L87 Difference]: Start difference. First operand 580 states and 837 transitions. Second operand 5 states. [2020-07-20 22:07:47,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:07:47,792 INFO L93 Difference]: Finished difference Result 1176 states and 1714 transitions. [2020-07-20 22:07:47,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 22:07:47,792 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-07-20 22:07:47,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:07:47,802 INFO L225 Difference]: With dead ends: 1176 [2020-07-20 22:07:47,802 INFO L226 Difference]: Without dead ends: 602 [2020-07-20 22:07:47,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 22:07:47,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2020-07-20 22:07:47,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 592. [2020-07-20 22:07:47,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-07-20 22:07:47,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 738 transitions. [2020-07-20 22:07:47,848 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 738 transitions. Word has length 167 [2020-07-20 22:07:47,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:07:47,849 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 738 transitions. [2020-07-20 22:07:47,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:07:47,850 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 738 transitions. [2020-07-20 22:07:47,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-20 22:07:47,863 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:07:47,863 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:07:48,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:07:48,077 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:07:48,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:07:48,078 INFO L82 PathProgramCache]: Analyzing trace with hash 528848677, now seen corresponding path program 1 times [2020-07-20 22:07:48,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:07:48,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1616569941] [2020-07-20 22:07:48,080 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 22:07:48,174 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:07:48,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:07:48,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 22:07:48,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:07:48,247 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:07:48,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:07:48,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1616569941] [2020-07-20 22:07:48,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:07:48,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:07:48,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924642932] [2020-07-20 22:07:48,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:07:48,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:07:48,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:07:48,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:07:48,250 INFO L87 Difference]: Start difference. First operand 592 states and 738 transitions. Second operand 5 states. [2020-07-20 22:07:49,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:07:49,216 INFO L93 Difference]: Finished difference Result 1345 states and 1668 transitions. [2020-07-20 22:07:49,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 22:07:49,218 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 172 [2020-07-20 22:07:49,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:07:49,223 INFO L225 Difference]: With dead ends: 1345 [2020-07-20 22:07:49,223 INFO L226 Difference]: Without dead ends: 759 [2020-07-20 22:07:49,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:07:49,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2020-07-20 22:07:49,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 745. [2020-07-20 22:07:49,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2020-07-20 22:07:49,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 906 transitions. [2020-07-20 22:07:49,257 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 906 transitions. Word has length 172 [2020-07-20 22:07:49,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:07:49,258 INFO L479 AbstractCegarLoop]: Abstraction has 745 states and 906 transitions. [2020-07-20 22:07:49,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:07:49,258 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 906 transitions. [2020-07-20 22:07:49,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-07-20 22:07:49,264 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:07:49,265 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:07:49,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:07:49,480 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:07:49,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:07:49,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1123243390, now seen corresponding path program 1 times [2020-07-20 22:07:49,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:07:49,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1752094047] [2020-07-20 22:07:49,482 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 22:07:49,603 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:07:49,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:07:49,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 20 conjunts are in the unsatisfiable core [2020-07-20 22:07:49,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:07:49,811 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-07-20 22:07:49,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:07:49,864 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 22:07:49,877 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 22:07:49,961 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-20 22:07:49,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1752094047] [2020-07-20 22:07:49,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 22:07:49,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-07-20 22:07:49,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729013954] [2020-07-20 22:07:49,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:07:49,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:07:49,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:07:49,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:07:49,973 INFO L87 Difference]: Start difference. First operand 745 states and 906 transitions. Second operand 3 states. [2020-07-20 22:07:50,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:07:50,758 INFO L93 Difference]: Finished difference Result 1925 states and 2420 transitions. [2020-07-20 22:07:50,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:07:50,759 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2020-07-20 22:07:50,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:07:50,767 INFO L225 Difference]: With dead ends: 1925 [2020-07-20 22:07:50,768 INFO L226 Difference]: Without dead ends: 1329 [2020-07-20 22:07:50,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 464 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:07:50,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2020-07-20 22:07:50,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1186. [2020-07-20 22:07:50,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1186 states. [2020-07-20 22:07:50,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 1474 transitions. [2020-07-20 22:07:50,828 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 1474 transitions. Word has length 237 [2020-07-20 22:07:50,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:07:50,829 INFO L479 AbstractCegarLoop]: Abstraction has 1186 states and 1474 transitions. [2020-07-20 22:07:50,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:07:50,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 1474 transitions. [2020-07-20 22:07:50,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-20 22:07:50,838 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:07:50,838 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, 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, 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] [2020-07-20 22:07:51,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:07:51,053 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:07:51,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:07:51,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1486075186, now seen corresponding path program 1 times [2020-07-20 22:07:51,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:07:51,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1280361400] [2020-07-20 22:07:51,056 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 22:07:51,288 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:07:51,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:07:51,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:07:51,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:07:51,389 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 315 proven. 2 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-07-20 22:07:51,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:07:51,563 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 216 proven. 82 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-07-20 22:07:51,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1280361400] [2020-07-20 22:07:51,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:07:51,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 22:07:51,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456821484] [2020-07-20 22:07:51,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 22:07:51,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:07:51,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 22:07:51,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:07:51,565 INFO L87 Difference]: Start difference. First operand 1186 states and 1474 transitions. Second operand 7 states. [2020-07-20 22:07:52,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:07:52,829 INFO L93 Difference]: Finished difference Result 2823 states and 3565 transitions. [2020-07-20 22:07:52,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 22:07:52,831 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 333 [2020-07-20 22:07:52,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:07:52,841 INFO L225 Difference]: With dead ends: 2823 [2020-07-20 22:07:52,841 INFO L226 Difference]: Without dead ends: 1786 [2020-07-20 22:07:52,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 664 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-20 22:07:52,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2020-07-20 22:07:52,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1778. [2020-07-20 22:07:52,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1778 states. [2020-07-20 22:07:52,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1778 states to 1778 states and 2105 transitions. [2020-07-20 22:07:52,898 INFO L78 Accepts]: Start accepts. Automaton has 1778 states and 2105 transitions. Word has length 333 [2020-07-20 22:07:52,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:07:52,899 INFO L479 AbstractCegarLoop]: Abstraction has 1778 states and 2105 transitions. [2020-07-20 22:07:52,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 22:07:52,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states and 2105 transitions. [2020-07-20 22:07:52,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-07-20 22:07:52,908 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:07:52,909 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, 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, 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] [2020-07-20 22:07:53,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:07:53,113 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:07:53,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:07:53,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1714677167, now seen corresponding path program 1 times [2020-07-20 22:07:53,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:07:53,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842136658] [2020-07-20 22:07:53,114 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 22:07:53,293 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:07:53,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:07:53,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:07:53,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:07:53,414 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 345 proven. 2 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-07-20 22:07:53,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:07:53,594 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 225 proven. 94 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-07-20 22:07:53,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842136658] [2020-07-20 22:07:53,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:07:53,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-20 22:07:53,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468400061] [2020-07-20 22:07:53,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 22:07:53,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:07:53,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 22:07:53,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-20 22:07:53,597 INFO L87 Difference]: Start difference. First operand 1778 states and 2105 transitions. Second operand 8 states. [2020-07-20 22:07:55,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:07:55,084 INFO L93 Difference]: Finished difference Result 5082 states and 6374 transitions. [2020-07-20 22:07:55,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 22:07:55,085 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 354 [2020-07-20 22:07:55,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:07:55,102 INFO L225 Difference]: With dead ends: 5082 [2020-07-20 22:07:55,102 INFO L226 Difference]: Without dead ends: 2249 [2020-07-20 22:07:55,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 705 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-20 22:07:55,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2249 states. [2020-07-20 22:07:55,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2249 to 2064. [2020-07-20 22:07:55,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2064 states. [2020-07-20 22:07:55,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2064 states to 2064 states and 2363 transitions. [2020-07-20 22:07:55,174 INFO L78 Accepts]: Start accepts. Automaton has 2064 states and 2363 transitions. Word has length 354 [2020-07-20 22:07:55,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:07:55,175 INFO L479 AbstractCegarLoop]: Abstraction has 2064 states and 2363 transitions. [2020-07-20 22:07:55,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 22:07:55,175 INFO L276 IsEmpty]: Start isEmpty. Operand 2064 states and 2363 transitions. [2020-07-20 22:07:55,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2020-07-20 22:07:55,186 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:07:55,187 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, 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, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 22:07:55,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:07:55,402 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:07:55,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:07:55,402 INFO L82 PathProgramCache]: Analyzing trace with hash 147784809, now seen corresponding path program 1 times [2020-07-20 22:07:55,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:07:55,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2133482650] [2020-07-20 22:07:55,403 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 22:07:55,585 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:07:55,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:07:55,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:07:55,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:07:55,705 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2020-07-20 22:07:55,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:07:55,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2133482650] [2020-07-20 22:07:55,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:07:55,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:07:55,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663919820] [2020-07-20 22:07:55,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:07:55,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:07:55,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:07:55,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:07:55,709 INFO L87 Difference]: Start difference. First operand 2064 states and 2363 transitions. Second operand 3 states. [2020-07-20 22:07:56,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:07:56,225 INFO L93 Difference]: Finished difference Result 2064 states and 2363 transitions. [2020-07-20 22:07:56,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:07:56,226 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 398 [2020-07-20 22:07:56,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:07:56,227 INFO L225 Difference]: With dead ends: 2064 [2020-07-20 22:07:56,227 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 22:07:56,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:07:56,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 22:07:56,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 22:07:56,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 22:07:56,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 22:07:56,232 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 398 [2020-07-20 22:07:56,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:07:56,232 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 22:07:56,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:07:56,233 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 22:07:56,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 22:07:56,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:07:56,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 22:07:57,212 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 51 [2020-07-20 22:07:57,361 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 35 [2020-07-20 22:07:57,462 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 35 [2020-07-20 22:07:57,466 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:07:57,466 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-20 22:07:57,467 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:07:57,467 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-20 22:07:57,467 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,467 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,467 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,467 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,467 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,468 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,468 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-20 22:07:57,468 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-20 22:07:57,468 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 22:07:57,468 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 22:07:57,468 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 22:07:57,468 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 22:07:57,468 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 22:07:57,469 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 22:07:57,469 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-20 22:07:57,469 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-20 22:07:57,469 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-20 22:07:57,469 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,469 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,469 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,469 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,470 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,470 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-20 22:07:57,470 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-20 22:07:57,470 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-20 22:07:57,470 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-20 22:07:57,470 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 22:07:57,470 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 22:07:57,470 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 22:07:57,471 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 22:07:57,471 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 22:07:57,471 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-20 22:07:57,471 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-20 22:07:57,471 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-20 22:07:57,471 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-20 22:07:57,471 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 151) no Hoare annotation was computed. [2020-07-20 22:07:57,471 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-20 22:07:57,472 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,472 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,472 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,472 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,472 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,472 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-20 22:07:57,472 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 22:07:57,472 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 22:07:57,472 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 22:07:57,473 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 22:07:57,473 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 22:07:57,473 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-20 22:07:57,473 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-20 22:07:57,473 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-20 22:07:57,473 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-20 22:07:57,473 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,474 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,474 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,474 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,474 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,474 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-20 22:07:57,474 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-20 22:07:57,474 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-20 22:07:57,474 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 22:07:57,475 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 22:07:57,475 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 22:07:57,475 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 22:07:57,475 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 22:07:57,475 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-20 22:07:57,475 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-20 22:07:57,475 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-20 22:07:57,475 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-20 22:07:57,476 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-20 22:07:57,476 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,476 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,476 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,476 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,476 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,476 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 22:07:57,476 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 22:07:57,477 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 22:07:57,477 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 22:07:57,477 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 22:07:57,477 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-20 22:07:57,477 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-20 22:07:57,477 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-20 22:07:57,477 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-20 22:07:57,477 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,477 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,478 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,478 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,478 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,478 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,478 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,478 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-20 22:07:57,478 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-20 22:07:57,478 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-20 22:07:57,479 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-20 22:07:57,479 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 22:07:57,479 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 22:07:57,479 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 22:07:57,479 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 22:07:57,479 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 22:07:57,479 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-20 22:07:57,479 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-20 22:07:57,480 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-20 22:07:57,480 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-20 22:07:57,480 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,480 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,480 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,480 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,480 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 22:07:57,480 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,481 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,481 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-20 22:07:57,481 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-20 22:07:57,481 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-20 22:07:57,481 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 22:07:57,481 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 22:07:57,481 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 22:07:57,482 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 22:07:57,482 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 22:07:57,482 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 22:07:57,482 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-20 22:07:57,482 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-20 22:07:57,482 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-20 22:07:57,482 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-20 22:07:57,482 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,482 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,483 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,483 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,483 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,483 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,483 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-20 22:07:57,483 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-20 22:07:57,483 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-20 22:07:57,484 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 22:07:57,484 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 22:07:57,484 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 22:07:57,484 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 22:07:57,484 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 22:07:57,484 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 22:07:57,484 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-20 22:07:57,484 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-20 22:07:57,485 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse1 (<= ~a10~0 |old(~a10~0)|)) (.cse2 (<= ~a19~0 |old(~a19~0)|)) (.cse3 (= ~a1~0 |old(~a1~0)|))) (let ((.cse0 (and .cse1 .cse2 .cse3)) (.cse4 (not (<= 2 |old(~a10~0)|))) (.cse5 (not (<= |old(~a10~0)| 0)))) (and (or (not (<= |old(~a19~0)| 6)) .cse0) (or (not (<= 1 |old(~a10~0)|)) (and .cse1 (<= 1 ~a10~0) .cse2 .cse3) (not (<= |old(~a10~0)| 2))) (or (not (<= |old(~a19~0)| 8)) .cse2 .cse4) (or (not (< 38 |old(~a1~0)|)) .cse5 .cse0) (or (not (< |old(~a19~0)| 10)) (and .cse1 (<= 2 ~a10~0) .cse3 (< ~a19~0 10)) .cse4) (or (and (<= 9 ~a19~0) .cse1 .cse2 .cse3) .cse5 (not (<= 9 |old(~a19~0)|)))))) [2020-07-20 22:07:57,485 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-20 22:07:57,485 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-20 22:07:57,485 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-20 22:07:57,485 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,485 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,486 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,486 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,486 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,486 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,486 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-20 22:07:57,486 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 22:07:57,486 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 22:07:57,486 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 22:07:57,487 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 22:07:57,487 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 22:07:57,487 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 22:07:57,487 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-20 22:07:57,487 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-20 22:07:57,487 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-20 22:07:57,487 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-20 22:07:57,487 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-20 22:07:57,488 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-20 22:07:57,488 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,488 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,488 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,488 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,488 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,488 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,488 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-20 22:07:57,489 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-20 22:07:57,489 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-20 22:07:57,489 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 22:07:57,489 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 22:07:57,489 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 22:07:57,489 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 22:07:57,489 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 22:07:57,489 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 22:07:57,489 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-20 22:07:57,490 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-20 22:07:57,490 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-20 22:07:57,490 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,490 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,490 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,490 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,490 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,490 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:07:57,490 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-20 22:07:57,490 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-20 22:07:57,491 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-20 22:07:57,491 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 22:07:57,491 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 22:07:57,491 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 22:07:57,491 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 22:07:57,491 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 22:07:57,491 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 22:07:57,491 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-20 22:07:57,491 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-20 22:07:57,492 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-20 22:07:57,492 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:07:57,492 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 9 ~a19~0) (= 23 ~a1~0) (< ~a19~0 10)) [2020-07-20 22:07:57,492 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 22:07:57,492 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:07:57,492 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (< |old(~a19~0)| 10)) (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (= ~a1~0 |old(~a1~0)|) (< ~a19~0 10))) [2020-07-20 22:07:57,492 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-20 22:07:57,493 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a10~0 2))) (or (not (< |old(~a19~0)| 10)) (and (<= 1 ~a10~0) .cse0) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (and (<= ~a10~0 0) (<= 9 ~a19~0)) (and (< 38 ~a1~0) .cse0) (and (<= 2 ~a10~0) (< ~a19~0 10)))) [2020-07-20 22:07:57,493 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-20 22:07:57,493 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-20 22:07:57,493 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a10~0 2))) (or (not (< |old(~a19~0)| 10)) (and (<= 1 ~a10~0) .cse0) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (and (<= ~a10~0 0) (<= 9 ~a19~0)) (and (< 38 ~a1~0) .cse0) (and (<= 2 ~a10~0) (< ~a19~0 10)))) [2020-07-20 22:07:57,493 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-20 22:07:57,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:07:57 BoogieIcfgContainer [2020-07-20 22:07:57,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 22:07:57,515 INFO L168 Benchmark]: Toolchain (without parser) took 17419.57 ms. Allocated memory was 136.3 MB in the beginning and 528.0 MB in the end (delta: 391.6 MB). Free memory was 98.0 MB in the beginning and 444.5 MB in the end (delta: -346.5 MB). Peak memory consumption was 408.5 MB. Max. memory is 7.1 GB. [2020-07-20 22:07:57,516 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 136.3 MB. Free memory was 118.1 MB in the beginning and 117.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-20 22:07:57,517 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.17 ms. Allocated memory was 136.3 MB in the beginning and 202.9 MB in the end (delta: 66.6 MB). Free memory was 97.6 MB in the beginning and 167.4 MB in the end (delta: -69.9 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2020-07-20 22:07:57,518 INFO L168 Benchmark]: Boogie Preprocessor took 128.98 ms. Allocated memory is still 202.9 MB. Free memory was 167.4 MB in the beginning and 163.0 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-07-20 22:07:57,518 INFO L168 Benchmark]: RCFGBuilder took 1606.31 ms. Allocated memory was 202.9 MB in the beginning and 231.7 MB in the end (delta: 28.8 MB). Free memory was 162.3 MB in the beginning and 177.5 MB in the end (delta: -15.2 MB). Peak memory consumption was 85.2 MB. Max. memory is 7.1 GB. [2020-07-20 22:07:57,519 INFO L168 Benchmark]: TraceAbstraction took 14939.64 ms. Allocated memory was 231.7 MB in the beginning and 528.0 MB in the end (delta: 296.2 MB). Free memory was 177.5 MB in the beginning and 444.5 MB in the end (delta: -267.0 MB). Peak memory consumption was 392.6 MB. Max. memory is 7.1 GB. [2020-07-20 22:07:57,523 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 136.3 MB. Free memory was 118.1 MB in the beginning and 117.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 736.17 ms. Allocated memory was 136.3 MB in the beginning and 202.9 MB in the end (delta: 66.6 MB). Free memory was 97.6 MB in the beginning and 167.4 MB in the end (delta: -69.9 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.98 ms. Allocated memory is still 202.9 MB. Free memory was 167.4 MB in the beginning and 163.0 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1606.31 ms. Allocated memory was 202.9 MB in the beginning and 231.7 MB in the end (delta: 28.8 MB). Free memory was 162.3 MB in the beginning and 177.5 MB in the end (delta: -15.2 MB). Peak memory consumption was 85.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14939.64 ms. Allocated memory was 231.7 MB in the beginning and 528.0 MB in the end (delta: 296.2 MB). Free memory was 177.5 MB in the beginning and 444.5 MB in the end (delta: -267.0 MB). Peak memory consumption was 392.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 151]: 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) || (1 <= a10 && a10 <= 2)) || a19 <= 6) || !(\old(a10) <= 0)) || !(23 == \old(a1))) || !(9 <= \old(a19))) || (a10 <= 0 && 9 <= a19)) || (38 < a1 && a10 <= 2)) || (2 <= a10 && a19 < 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.8s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 8.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1048 SDtfs, 2113 SDslu, 230 SDs, 0 SdLazy, 5027 SolverSat, 949 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2916 GetRequests, 2871 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2064occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 646 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 72 PreInvPairs, 132 NumberOfFragments, 263 HoareAnnotationTreeSize, 72 FomulaSimplifications, 2471 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1284 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1978 NumberOfCodeBlocks, 1978 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 2890 ConstructedInterpolants, 0 QuantifiedInterpolants, 1625940 SizeOfPredicates, 15 NumberOfNonLiveVariables, 3450 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 12 InterpolantComputations, 7 PerfectInterpolantSequences, 2229/2511 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...