/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 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:09:59,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:09:59,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:09:59,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 20:09:59,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:09:59,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:09:59,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:09:59,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:09:59,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:09:59,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:09:59,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:09:59,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:09:59,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:09:59,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:09:59,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:09:59,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:09:59,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:09:59,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:09:59,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:09:59,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:09:59,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:09:59,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:09:59,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:09:59,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:09:59,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:09:59,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:09:59,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:09:59,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:09:59,175 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 20:09:59,189 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:09:59,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:09:59,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:09:59,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:09:59,191 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:09:59,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:09:59,191 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:09:59,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:09:59,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:09:59,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:09:59,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:09:59,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:09:59,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:09:59,192 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:09:59,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:09:59,193 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:09:59,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:09:59,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:09:59,193 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:09:59,194 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:09:59,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:09:59,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:09:59,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:09:59,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:09:59,195 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:09:59,195 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:09:59,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:59,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:09:59,196 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:09:59,196 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 -> 2 [2020-07-21 20:09:59,481 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:09:59,495 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:09:59,498 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:09:59,500 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:09:59,500 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:09:59,501 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-07-21 20:09:59,564 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c3811856/26215a7bef614184b87787bc7070482d/FLAG4e38c026a [2020-07-21 20:10:00,091 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:10:00,092 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-07-21 20:10:00,107 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c3811856/26215a7bef614184b87787bc7070482d/FLAG4e38c026a [2020-07-21 20:10:00,350 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c3811856/26215a7bef614184b87787bc7070482d [2020-07-21 20:10:00,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:10:00,361 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:10:00,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:10:00,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:10:00,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:10:00,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:10:00" (1/1) ... [2020-07-21 20:10:00,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b3607cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:00, skipping insertion in model container [2020-07-21 20:10:00,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:10:00" (1/1) ... [2020-07-21 20:10:00,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:10:00,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:10:00,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:10:00,937 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:10:01,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:10:01,208 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:10:01,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:01 WrapperNode [2020-07-21 20:10:01,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:10:01,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:10:01,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:10:01,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:10:01,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:01" (1/1) ... [2020-07-21 20:10:01,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:01" (1/1) ... [2020-07-21 20:10:01,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:01" (1/1) ... [2020-07-21 20:10:01,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:01" (1/1) ... [2020-07-21 20:10:01,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:01" (1/1) ... [2020-07-21 20:10:01,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:01" (1/1) ... [2020-07-21 20:10:01,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:01" (1/1) ... [2020-07-21 20:10:01,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:10:01,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:10:01,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:10:01,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:10:01,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:10:01,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:10:01,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:10:01,399 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:10:01,399 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:10:01,399 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:10:01,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:10:01,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:10:01,400 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:10:01,400 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:10:01,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:10:01,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:10:02,632 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:10:02,632 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:10:02,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:10:02 BoogieIcfgContainer [2020-07-21 20:10:02,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:10:02,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:10:02,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:10:02,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:10:02,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:10:00" (1/3) ... [2020-07-21 20:10:02,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11971c0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:10:02, skipping insertion in model container [2020-07-21 20:10:02,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:01" (2/3) ... [2020-07-21 20:10:02,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11971c0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:10:02, skipping insertion in model container [2020-07-21 20:10:02,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:10:02" (3/3) ... [2020-07-21 20:10:02,647 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label41.c [2020-07-21 20:10:02,658 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:10:02,666 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:10:02,681 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:10:02,707 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:10:02,707 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:10:02,707 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:10:02,707 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:10:02,708 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:10:02,708 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:10:02,708 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:10:02,708 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:10:02,733 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 20:10:02,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-07-21 20:10:02,747 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:02,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:10:02,749 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:02,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:02,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1961179338, now seen corresponding path program 1 times [2020-07-21 20:10:02,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:02,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39037151] [2020-07-21 20:10:02,762 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:02,922 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:02,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:02,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:10:02,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:03,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:03,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:03,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [39037151] [2020-07-21 20:10:03,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:03,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:10:03,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624232396] [2020-07-21 20:10:03,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:10:03,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:03,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:10:03,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:03,059 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 20:10:03,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:03,979 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-21 20:10:03,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:10:03,981 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-07-21 20:10:03,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:03,998 INFO L225 Difference]: With dead ends: 619 [2020-07-21 20:10:03,998 INFO L226 Difference]: Without dead ends: 321 [2020-07-21 20:10:04,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:04,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-21 20:10:04,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-21 20:10:04,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-21 20:10:04,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-21 20:10:04,075 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 96 [2020-07-21 20:10:04,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:04,076 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-21 20:10:04,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:10:04,076 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-21 20:10:04,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-07-21 20:10:04,082 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:04,082 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:10:04,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:04,296 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:04,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:04,297 INFO L82 PathProgramCache]: Analyzing trace with hash -263747545, now seen corresponding path program 1 times [2020-07-21 20:10:04,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:04,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139624165] [2020-07-21 20:10:04,299 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:04,397 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:04,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:04,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:04,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:04,442 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:04,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:04,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2139624165] [2020-07-21 20:10:04,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:04,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:10:04,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13072976] [2020-07-21 20:10:04,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:10:04,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:04,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:10:04,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:04,447 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 3 states. [2020-07-21 20:10:05,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:05,130 INFO L93 Difference]: Finished difference Result 782 states and 1068 transitions. [2020-07-21 20:10:05,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:10:05,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-07-21 20:10:05,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:05,138 INFO L225 Difference]: With dead ends: 782 [2020-07-21 20:10:05,138 INFO L226 Difference]: Without dead ends: 469 [2020-07-21 20:10:05,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:05,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-21 20:10:05,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2020-07-21 20:10:05,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-07-21 20:10:05,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 600 transitions. [2020-07-21 20:10:05,185 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 600 transitions. Word has length 105 [2020-07-21 20:10:05,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:05,186 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 600 transitions. [2020-07-21 20:10:05,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:10:05,187 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 600 transitions. [2020-07-21 20:10:05,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-07-21 20:10:05,191 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:05,191 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:10:05,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:05,406 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:05,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:05,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1318994351, now seen corresponding path program 1 times [2020-07-21 20:10:05,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:05,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230764322] [2020-07-21 20:10:05,409 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:05,529 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:05,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:05,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:05,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:05,601 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:05,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:05,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230764322] [2020-07-21 20:10:05,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:05,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:10:05,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719067977] [2020-07-21 20:10:05,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:10:05,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:05,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:10:05,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:05,605 INFO L87 Difference]: Start difference. First operand 469 states and 600 transitions. Second operand 3 states. [2020-07-21 20:10:06,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:06,168 INFO L93 Difference]: Finished difference Result 1378 states and 1794 transitions. [2020-07-21 20:10:06,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:10:06,170 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2020-07-21 20:10:06,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:06,177 INFO L225 Difference]: With dead ends: 1378 [2020-07-21 20:10:06,177 INFO L226 Difference]: Without dead ends: 915 [2020-07-21 20:10:06,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:06,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2020-07-21 20:10:06,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 909. [2020-07-21 20:10:06,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 909 states. [2020-07-21 20:10:06,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1153 transitions. [2020-07-21 20:10:06,226 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1153 transitions. Word has length 117 [2020-07-21 20:10:06,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:06,226 INFO L479 AbstractCegarLoop]: Abstraction has 909 states and 1153 transitions. [2020-07-21 20:10:06,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:10:06,226 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1153 transitions. [2020-07-21 20:10:06,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-21 20:10:06,236 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:06,238 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:10:06,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:06,453 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:06,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:06,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1902832748, now seen corresponding path program 1 times [2020-07-21 20:10:06,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:06,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912625669] [2020-07-21 20:10:06,455 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:06,554 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:06,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:06,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:06,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:06,606 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 20:10:06,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:06,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1912625669] [2020-07-21 20:10:06,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:06,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:10:06,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12384460] [2020-07-21 20:10:06,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:10:06,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:06,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:10:06,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:06,610 INFO L87 Difference]: Start difference. First operand 909 states and 1153 transitions. Second operand 3 states. [2020-07-21 20:10:07,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:07,246 INFO L93 Difference]: Finished difference Result 2101 states and 2761 transitions. [2020-07-21 20:10:07,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:10:07,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-07-21 20:10:07,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:07,254 INFO L225 Difference]: With dead ends: 2101 [2020-07-21 20:10:07,254 INFO L226 Difference]: Without dead ends: 1198 [2020-07-21 20:10:07,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:07,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2020-07-21 20:10:07,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1197. [2020-07-21 20:10:07,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2020-07-21 20:10:07,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1554 transitions. [2020-07-21 20:10:07,314 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1554 transitions. Word has length 125 [2020-07-21 20:10:07,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:07,315 INFO L479 AbstractCegarLoop]: Abstraction has 1197 states and 1554 transitions. [2020-07-21 20:10:07,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:10:07,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1554 transitions. [2020-07-21 20:10:07,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 20:10:07,322 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:07,323 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:10:07,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:07,536 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:07,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:07,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1867867428, now seen corresponding path program 1 times [2020-07-21 20:10:07,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:07,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1638285261] [2020-07-21 20:10:07,538 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:07,633 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:07,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:07,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:07,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:07,674 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:07,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:07,794 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:07,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1638285261] [2020-07-21 20:10:07,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:07,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:10:07,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705765022] [2020-07-21 20:10:07,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:10:07,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:07,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:10:07,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:10:07,799 INFO L87 Difference]: Start difference. First operand 1197 states and 1554 transitions. Second operand 6 states. [2020-07-21 20:10:08,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:08,885 INFO L93 Difference]: Finished difference Result 2745 states and 3656 transitions. [2020-07-21 20:10:08,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:10:08,887 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2020-07-21 20:10:08,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:08,901 INFO L225 Difference]: With dead ends: 2745 [2020-07-21 20:10:08,901 INFO L226 Difference]: Without dead ends: 1554 [2020-07-21 20:10:08,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 254 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:10:08,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2020-07-21 20:10:08,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1525. [2020-07-21 20:10:08,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1525 states. [2020-07-21 20:10:08,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 1965 transitions. [2020-07-21 20:10:08,990 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 1965 transitions. Word has length 129 [2020-07-21 20:10:08,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:08,991 INFO L479 AbstractCegarLoop]: Abstraction has 1525 states and 1965 transitions. [2020-07-21 20:10:08,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:10:08,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 1965 transitions. [2020-07-21 20:10:09,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 20:10:09,000 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:09,001 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:10:09,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:09,212 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:09,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:09,212 INFO L82 PathProgramCache]: Analyzing trace with hash -429451800, now seen corresponding path program 1 times [2020-07-21 20:10:09,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:09,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1334458639] [2020-07-21 20:10:09,213 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:09,348 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:09,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:09,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:09,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:09,400 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:09,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:09,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1334458639] [2020-07-21 20:10:09,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:09,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:10:09,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729866305] [2020-07-21 20:10:09,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:10:09,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:09,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:10:09,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:09,404 INFO L87 Difference]: Start difference. First operand 1525 states and 1965 transitions. Second operand 3 states. [2020-07-21 20:10:10,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:10,006 INFO L93 Difference]: Finished difference Result 4536 states and 5943 transitions. [2020-07-21 20:10:10,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:10:10,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-21 20:10:10,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:10,023 INFO L225 Difference]: With dead ends: 4536 [2020-07-21 20:10:10,023 INFO L226 Difference]: Without dead ends: 3017 [2020-07-21 20:10:10,032 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:10,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2020-07-21 20:10:10,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 3017. [2020-07-21 20:10:10,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3017 states. [2020-07-21 20:10:10,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 3879 transitions. [2020-07-21 20:10:10,115 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 3879 transitions. Word has length 133 [2020-07-21 20:10:10,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:10,115 INFO L479 AbstractCegarLoop]: Abstraction has 3017 states and 3879 transitions. [2020-07-21 20:10:10,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:10:10,115 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 3879 transitions. [2020-07-21 20:10:10,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-21 20:10:10,124 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:10,124 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:10:10,337 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:10,338 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:10,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:10,339 INFO L82 PathProgramCache]: Analyzing trace with hash 605629041, now seen corresponding path program 1 times [2020-07-21 20:10:10,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:10,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1343480749] [2020-07-21 20:10:10,340 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:10,439 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:10,439 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:10,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:10,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:10,518 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 20:10:10,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:10,588 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 20:10:10,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1343480749] [2020-07-21 20:10:10,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:10,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:10:10,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601759094] [2020-07-21 20:10:10,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:10:10,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:10,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:10:10,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:10:10,591 INFO L87 Difference]: Start difference. First operand 3017 states and 3879 transitions. Second operand 6 states. [2020-07-21 20:10:11,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:11,347 INFO L93 Difference]: Finished difference Result 6088 states and 7892 transitions. [2020-07-21 20:10:11,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:10:11,348 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2020-07-21 20:10:11,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:11,365 INFO L225 Difference]: With dead ends: 6088 [2020-07-21 20:10:11,365 INFO L226 Difference]: Without dead ends: 3077 [2020-07-21 20:10:11,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 286 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:10:11,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2020-07-21 20:10:11,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 3055. [2020-07-21 20:10:11,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3055 states. [2020-07-21 20:10:11,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3055 states to 3055 states and 3691 transitions. [2020-07-21 20:10:11,471 INFO L78 Accepts]: Start accepts. Automaton has 3055 states and 3691 transitions. Word has length 145 [2020-07-21 20:10:11,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:11,471 INFO L479 AbstractCegarLoop]: Abstraction has 3055 states and 3691 transitions. [2020-07-21 20:10:11,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:10:11,472 INFO L276 IsEmpty]: Start isEmpty. Operand 3055 states and 3691 transitions. [2020-07-21 20:10:11,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-21 20:10:11,480 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:11,480 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:10:11,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:11,694 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:11,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:11,695 INFO L82 PathProgramCache]: Analyzing trace with hash -183412167, now seen corresponding path program 1 times [2020-07-21 20:10:11,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:11,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1222394240] [2020-07-21 20:10:11,695 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:11,855 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:11,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:11,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 20:10:11,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:11,895 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 20:10:11,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:11,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1222394240] [2020-07-21 20:10:11,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:11,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:10:11,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490111600] [2020-07-21 20:10:11,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:10:11,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:11,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:10:11,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:10:11,898 INFO L87 Difference]: Start difference. First operand 3055 states and 3691 transitions. Second operand 5 states. [2020-07-21 20:10:12,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:12,773 INFO L93 Difference]: Finished difference Result 8100 states and 10229 transitions. [2020-07-21 20:10:12,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:10:12,775 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2020-07-21 20:10:12,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:12,801 INFO L225 Difference]: With dead ends: 8100 [2020-07-21 20:10:12,801 INFO L226 Difference]: Without dead ends: 5051 [2020-07-21 20:10:12,811 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:10:12,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5051 states. [2020-07-21 20:10:12,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5051 to 4979. [2020-07-21 20:10:12,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4979 states. [2020-07-21 20:10:12,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4979 states to 4979 states and 5905 transitions. [2020-07-21 20:10:12,965 INFO L78 Accepts]: Start accepts. Automaton has 4979 states and 5905 transitions. Word has length 147 [2020-07-21 20:10:12,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:12,966 INFO L479 AbstractCegarLoop]: Abstraction has 4979 states and 5905 transitions. [2020-07-21 20:10:12,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:10:12,966 INFO L276 IsEmpty]: Start isEmpty. Operand 4979 states and 5905 transitions. [2020-07-21 20:10:12,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-21 20:10:12,979 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:12,980 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-21 20:10:13,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:13,194 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:13,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:13,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1998620505, now seen corresponding path program 1 times [2020-07-21 20:10:13,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:13,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400034047] [2020-07-21 20:10:13,195 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:13,360 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:13,360 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:13,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:13,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:13,409 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 20:10:13,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:13,497 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 20:10:13,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [400034047] [2020-07-21 20:10:13,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:13,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:10:13,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035212787] [2020-07-21 20:10:13,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:10:13,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:13,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:10:13,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:10:13,499 INFO L87 Difference]: Start difference. First operand 4979 states and 5905 transitions. Second operand 6 states. [2020-07-21 20:10:13,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:13,982 INFO L93 Difference]: Finished difference Result 9553 states and 11596 transitions. [2020-07-21 20:10:13,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 20:10:13,983 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 185 [2020-07-21 20:10:13,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:14,007 INFO L225 Difference]: With dead ends: 9553 [2020-07-21 20:10:14,007 INFO L226 Difference]: Without dead ends: 4580 [2020-07-21 20:10:14,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 364 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:10:14,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4580 states. [2020-07-21 20:10:14,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4580 to 4512. [2020-07-21 20:10:14,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4512 states. [2020-07-21 20:10:14,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4512 states to 4512 states and 5191 transitions. [2020-07-21 20:10:14,122 INFO L78 Accepts]: Start accepts. Automaton has 4512 states and 5191 transitions. Word has length 185 [2020-07-21 20:10:14,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:14,123 INFO L479 AbstractCegarLoop]: Abstraction has 4512 states and 5191 transitions. [2020-07-21 20:10:14,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:10:14,123 INFO L276 IsEmpty]: Start isEmpty. Operand 4512 states and 5191 transitions. [2020-07-21 20:10:14,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-07-21 20:10:14,135 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:14,136 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-21 20:10:14,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:14,350 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:14,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:14,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1061980931, now seen corresponding path program 1 times [2020-07-21 20:10:14,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:14,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [687996944] [2020-07-21 20:10:14,351 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:14,476 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:14,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:14,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:14,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:14,560 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-21 20:10:14,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:14,640 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 96 proven. 28 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-21 20:10:14,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [687996944] [2020-07-21 20:10:14,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:14,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:10:14,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430293988] [2020-07-21 20:10:14,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:10:14,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:14,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:10:14,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:10:14,643 INFO L87 Difference]: Start difference. First operand 4512 states and 5191 transitions. Second operand 6 states. [2020-07-21 20:10:15,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:15,408 INFO L93 Difference]: Finished difference Result 8575 states and 9907 transitions. [2020-07-21 20:10:15,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:10:15,409 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 190 [2020-07-21 20:10:15,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:15,424 INFO L225 Difference]: With dead ends: 8575 [2020-07-21 20:10:15,424 INFO L226 Difference]: Without dead ends: 3600 [2020-07-21 20:10:15,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 376 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:10:15,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3600 states. [2020-07-21 20:10:15,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3600 to 3596. [2020-07-21 20:10:15,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3596 states. [2020-07-21 20:10:15,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3596 states to 3596 states and 4004 transitions. [2020-07-21 20:10:15,509 INFO L78 Accepts]: Start accepts. Automaton has 3596 states and 4004 transitions. Word has length 190 [2020-07-21 20:10:15,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:15,509 INFO L479 AbstractCegarLoop]: Abstraction has 3596 states and 4004 transitions. [2020-07-21 20:10:15,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:10:15,510 INFO L276 IsEmpty]: Start isEmpty. Operand 3596 states and 4004 transitions. [2020-07-21 20:10:15,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-07-21 20:10:15,518 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:15,519 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-21 20:10:15,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:15,732 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:15,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:15,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1021169547, now seen corresponding path program 1 times [2020-07-21 20:10:15,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:15,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887577286] [2020-07-21 20:10:15,733 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:15,897 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:15,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:15,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:15,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:15,953 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 20:10:15,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:16,045 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 20:10:16,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887577286] [2020-07-21 20:10:16,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:16,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:10:16,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999704989] [2020-07-21 20:10:16,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:10:16,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:16,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:10:16,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:10:16,047 INFO L87 Difference]: Start difference. First operand 3596 states and 4004 transitions. Second operand 7 states. [2020-07-21 20:10:17,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:17,388 INFO L93 Difference]: Finished difference Result 8480 states and 9436 transitions. [2020-07-21 20:10:17,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:10:17,389 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-07-21 20:10:17,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:17,407 INFO L225 Difference]: With dead ends: 8480 [2020-07-21 20:10:17,407 INFO L226 Difference]: Without dead ends: 5034 [2020-07-21 20:10:17,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 383 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:10:17,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5034 states. [2020-07-21 20:10:17,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5034 to 3302. [2020-07-21 20:10:17,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3302 states. [2020-07-21 20:10:17,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3302 states to 3302 states and 3556 transitions. [2020-07-21 20:10:17,510 INFO L78 Accepts]: Start accepts. Automaton has 3302 states and 3556 transitions. Word has length 194 [2020-07-21 20:10:17,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:17,511 INFO L479 AbstractCegarLoop]: Abstraction has 3302 states and 3556 transitions. [2020-07-21 20:10:17,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:10:17,511 INFO L276 IsEmpty]: Start isEmpty. Operand 3302 states and 3556 transitions. [2020-07-21 20:10:17,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-07-21 20:10:17,521 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:17,521 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-21 20:10:17,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:17,736 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:17,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:17,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1298715091, now seen corresponding path program 1 times [2020-07-21 20:10:17,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:17,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294714369] [2020-07-21 20:10:17,737 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:17,891 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:17,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:17,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:17,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:17,939 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 145 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 20:10:17,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:18,041 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 145 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 20:10:18,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [294714369] [2020-07-21 20:10:18,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:18,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:10:18,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086109811] [2020-07-21 20:10:18,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:10:18,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:18,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:10:18,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:10:18,045 INFO L87 Difference]: Start difference. First operand 3302 states and 3556 transitions. Second operand 7 states. [2020-07-21 20:10:19,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:19,144 INFO L93 Difference]: Finished difference Result 6739 states and 7266 transitions. [2020-07-21 20:10:19,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 20:10:19,149 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2020-07-21 20:10:19,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:19,165 INFO L225 Difference]: With dead ends: 6739 [2020-07-21 20:10:19,165 INFO L226 Difference]: Without dead ends: 3143 [2020-07-21 20:10:19,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 397 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:10:19,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3143 states. [2020-07-21 20:10:19,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3143 to 2851. [2020-07-21 20:10:19,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2851 states. [2020-07-21 20:10:19,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 3026 transitions. [2020-07-21 20:10:19,222 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 3026 transitions. Word has length 201 [2020-07-21 20:10:19,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:19,223 INFO L479 AbstractCegarLoop]: Abstraction has 2851 states and 3026 transitions. [2020-07-21 20:10:19,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:10:19,223 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 3026 transitions. [2020-07-21 20:10:19,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-07-21 20:10:19,231 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:19,231 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:10:19,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:19,446 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:19,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:19,446 INFO L82 PathProgramCache]: Analyzing trace with hash 15833799, now seen corresponding path program 1 times [2020-07-21 20:10:19,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:19,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1841612310] [2020-07-21 20:10:19,447 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:19,616 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:19,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:19,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 20:10:19,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:19,677 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-07-21 20:10:19,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:19,774 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 137 proven. 54 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-07-21 20:10:19,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1841612310] [2020-07-21 20:10:19,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:19,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:10:19,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128971649] [2020-07-21 20:10:19,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:10:19,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:19,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:10:19,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:10:19,777 INFO L87 Difference]: Start difference. First operand 2851 states and 3026 transitions. Second operand 7 states. [2020-07-21 20:10:20,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:20,955 INFO L93 Difference]: Finished difference Result 5390 states and 5714 transitions. [2020-07-21 20:10:20,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:10:20,955 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 226 [2020-07-21 20:10:20,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:20,956 INFO L225 Difference]: With dead ends: 5390 [2020-07-21 20:10:20,956 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:10:20,971 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:10:20,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:10:20,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:10:20,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:10:20,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:10:20,973 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 226 [2020-07-21 20:10:20,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:20,973 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:10:20,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:10:20,973 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:10:20,974 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:10:21,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:21,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:10:21,749 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 142 [2020-07-21 20:10:21,902 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 142 [2020-07-21 20:10:23,086 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 155 DAG size of output: 94 [2020-07-21 20:10:23,892 WARN L193 SmtUtils]: Spent 785.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 67 [2020-07-21 20:10:24,667 WARN L193 SmtUtils]: Spent 772.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 67 [2020-07-21 20:10:24,672 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:10:24,672 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 20:10:24,672 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:10:24,673 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,673 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,673 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,673 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,673 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,674 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 20:10:24,674 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 20:10:24,674 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 20:10:24,674 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 20:10:24,674 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 20:10:24,675 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 20:10:24,675 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 20:10:24,675 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 20:10:24,675 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 20:10:24,675 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 20:10:24,675 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 20:10:24,675 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 20:10:24,675 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 20:10:24,676 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,676 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,676 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,676 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,676 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 20:10:24,676 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,676 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 20:10:24,676 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 20:10:24,677 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 20:10:24,677 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 20:10:24,677 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 20:10:24,677 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 20:10:24,677 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 20:10:24,677 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 20:10:24,677 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 20:10:24,677 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 20:10:24,677 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 20:10:24,678 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 20:10:24,678 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 20:10:24,678 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 20:10:24,678 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 20:10:24,678 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,678 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,678 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,679 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,679 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,679 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 442) no Hoare annotation was computed. [2020-07-21 20:10:24,679 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 20:10:24,679 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 20:10:24,679 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 20:10:24,679 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 20:10:24,679 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 20:10:24,680 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 20:10:24,680 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 20:10:24,680 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 20:10:24,680 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 20:10:24,680 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 20:10:24,680 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 20:10:24,680 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,680 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,681 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,681 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,681 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,681 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 20:10:24,681 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 20:10:24,681 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 20:10:24,681 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 20:10:24,681 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 20:10:24,681 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 20:10:24,682 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 20:10:24,682 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 20:10:24,682 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 20:10:24,682 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 20:10:24,682 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 20:10:24,682 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 20:10:24,682 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 20:10:24,682 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,682 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,683 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,683 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,683 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,683 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 20:10:24,683 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 20:10:24,683 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 20:10:24,683 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 20:10:24,683 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 20:10:24,683 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 20:10:24,684 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 20:10:24,684 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 20:10:24,684 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 20:10:24,684 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 20:10:24,684 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 20:10:24,684 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 20:10:24,684 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 20:10:24,684 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 20:10:24,685 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 20:10:24,685 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 20:10:24,685 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,685 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,685 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,685 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,685 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 20:10:24,685 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,686 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 20:10:24,686 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,686 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 20:10:24,686 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 20:10:24,686 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 20:10:24,686 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,686 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,686 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 20:10:24,686 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 20:10:24,687 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 20:10:24,687 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 20:10:24,687 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 20:10:24,687 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 20:10:24,687 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 20:10:24,687 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 20:10:24,687 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 20:10:24,687 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 20:10:24,688 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 20:10:24,688 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,688 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,688 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,688 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,688 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,688 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,688 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 20:10:24,688 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 20:10:24,689 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 20:10:24,689 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 20:10:24,689 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 20:10:24,689 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 20:10:24,689 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 20:10:24,689 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 20:10:24,689 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 20:10:24,689 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 20:10:24,689 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 20:10:24,690 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,690 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,690 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,690 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,690 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,690 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,690 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 20:10:24,690 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 20:10:24,690 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 20:10:24,691 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 20:10:24,691 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 20:10:24,691 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 20:10:24,691 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 20:10:24,691 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 20:10:24,691 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 20:10:24,691 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 20:10:24,691 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 20:10:24,691 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 20:10:24,692 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 20:10:24,692 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 20:10:24,692 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,692 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,692 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,692 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse23 (<= ~a11~0 0)) (.cse3 (<= ~a28~0 |old(~a28~0)|)) (.cse4 (<= ~a17~0 8)) (.cse5 (<= 8 ~a17~0)) (.cse6 (= ~a19~0 |old(~a19~0)|)) (.cse7 (<= |old(~a28~0)| ~a28~0)) (.cse25 (= 1 ~a25~0))) (let ((.cse12 (and .cse23 .cse3 .cse4 .cse5 .cse6 .cse7 .cse25)) (.cse8 (= ~a25~0 |old(~a25~0)|)) (.cse15 (not (<= |old(~a17~0)| 7))) (.cse19 (<= ~a25~0 0)) (.cse11 (not (= 1 |old(~a25~0)|))) (.cse14 (not (<= |old(~a28~0)| 7))) (.cse21 (not (<= 9 |old(~a28~0)|))) (.cse22 (<= ~a28~0 9)) (.cse10 (not (= 1 |old(~a19~0)|))) (.cse17 (not (<= |old(~a28~0)| 10))) (.cse20 (not (<= 10 |old(~a28~0)|))) (.cse16 (<= ~a17~0 |old(~a17~0)|)) (.cse24 (<= ~a28~0 10)) (.cse0 (not (<= |old(~a28~0)| 9))) (.cse1 (not (<= 8 |old(~a17~0)|))) (.cse18 (not (<= |old(~a25~0)| 0))) (.cse2 (not (<= |old(~a19~0)| 0))) (.cse9 (not (<= |old(~a17~0)| 8))) (.cse13 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) .cse9) (or .cse10 .cse0 .cse1 .cse11 .cse12 .cse9 .cse13) (or .cse10 .cse14 .cse15 .cse9 (and .cse16 .cse3 .cse6 .cse7)) (or .cse10 .cse17 .cse18 .cse19 .cse20 .cse9) (or .cse10 .cse1 .cse11 (not (<= 11 |old(~a28~0)|)) .cse12 .cse9 .cse13) (or .cse10 .cse21 (and .cse4 .cse5 .cse22 .cse6 .cse7 .cse8) .cse0 .cse1 .cse18 .cse9) (or .cse10 .cse14 .cse18 (and .cse23 .cse3 .cse4 .cse6 .cse7 .cse8) .cse9 .cse13) (or .cse17 .cse18 .cse2 .cse15 .cse20 (and .cse16 .cse24 .cse19 .cse6 .cse7)) (or (and .cse23 .cse4 .cse5 .cse24 .cse6 .cse7 .cse25) .cse17 .cse1 .cse11 .cse2 .cse20 .cse9 .cse13) (or .cse10 .cse14 .cse1 .cse11 (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse25) .cse9) (or .cse10 .cse21 .cse0 .cse1 .cse11 (and .cse4 .cse5 .cse22 .cse6 .cse7 .cse25) .cse9) (or .cse10 .cse23 .cse21 .cse0 .cse1 .cse18 .cse9 .cse13) (or .cse10 .cse17 .cse23 .cse20 .cse9 .cse13) (or .cse23 .cse14 .cse1 .cse2 .cse9 .cse13) (or .cse21 .cse0 .cse2 .cse9 (and .cse16 .cse22 .cse6 .cse7)) (or .cse10 .cse17 .cse20 .cse9 (and .cse16 .cse24 .cse6 .cse7)) (or .cse23 .cse0 .cse1 .cse18 .cse2 .cse9 .cse13)))) [2020-07-21 20:10:24,693 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,693 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,693 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,693 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 20:10:24,693 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 20:10:24,693 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 20:10:24,693 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 20:10:24,693 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 20:10:24,694 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 20:10:24,694 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 20:10:24,694 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 20:10:24,694 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 20:10:24,694 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 20:10:24,694 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 20:10:24,694 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 20:10:24,694 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 20:10:24,694 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,695 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,695 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,695 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,695 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,695 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,695 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 20:10:24,695 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 20:10:24,695 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 20:10:24,695 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 20:10:24,696 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 20:10:24,696 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 20:10:24,696 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 20:10:24,696 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 20:10:24,696 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 20:10:24,696 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 20:10:24,696 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 20:10:24,696 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 20:10:24,696 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 20:10:24,697 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 20:10:24,697 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 20:10:24,697 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 20:10:24,697 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,697 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,697 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,697 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,697 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:24,697 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 20:10:24,697 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 20:10:24,698 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 20:10:24,698 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 20:10:24,698 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 20:10:24,698 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 20:10:24,698 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 20:10:24,698 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 20:10:24,698 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 20:10:24,698 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 20:10:24,698 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 20:10:24,698 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 20:10:24,699 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 20:10:24,699 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 20:10:24,699 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 20:10:24,699 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 20:10:24,699 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 20:10:24,699 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 20:10:24,699 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 20:10:24,699 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:10:24,699 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-21 20:10:24,699 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:10:24,700 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:10:24,700 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-21 20:10:24,700 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse3 (<= ~a17~0 8)) (.cse4 (<= ~a19~0 |old(~a19~0)|)) (.cse5 (<= ~a28~0 7)) (.cse8 (<= ~a25~0 0)) (.cse14 (<= ~a28~0 9)) (.cse9 (<= ~a17~0 7)) (.cse10 (< 7 |old(~a17~0)|)) (.cse12 (<= ~a19~0 0)) (.cse13 (<= ~a11~0 0)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= 8 ~a17~0)) (.cse7 (<= ~a28~0 10)) (.cse11 (<= 9 ~a28~0)) (.cse6 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse13 .cse2 (<= 1 ~a19~0) .cse4 .cse6) (and .cse1 .cse2 .cse14 .cse12) (and .cse1 .cse13 .cse2 .cse7 .cse12 .cse6) (and .cse0 .cse3 .cse7 (<= 10 ~a28~0)) (and .cse0 .cse3 .cse9 .cse4 .cse10 .cse5) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse1 .cse2 .cse14 .cse8 .cse11) (not (<= |old(~a25~0)| 0)) (and .cse14 .cse9 .cse10 .cse11 .cse12) (and .cse1 .cse13 (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse0 .cse1 .cse2 .cse7 .cse11 .cse6) (not (<= |old(~a17~0)| 8)))) [2020-07-21 20:10:24,700 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 20:10:24,700 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 20:10:24,701 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse3 (<= ~a17~0 8)) (.cse4 (<= ~a19~0 |old(~a19~0)|)) (.cse5 (<= ~a28~0 7)) (.cse8 (<= ~a25~0 0)) (.cse14 (<= ~a28~0 9)) (.cse9 (<= ~a17~0 7)) (.cse10 (< 7 |old(~a17~0)|)) (.cse12 (<= ~a19~0 0)) (.cse13 (<= ~a11~0 0)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= 8 ~a17~0)) (.cse7 (<= ~a28~0 10)) (.cse11 (<= 9 ~a28~0)) (.cse6 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse13 .cse2 (<= 1 ~a19~0) .cse4 .cse6) (and .cse1 .cse2 .cse14 .cse12) (and .cse1 .cse13 .cse2 .cse7 .cse12 .cse6) (and .cse0 .cse3 .cse7 (<= 10 ~a28~0)) (and .cse0 .cse3 .cse9 .cse4 .cse10 .cse5) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse1 .cse2 .cse14 .cse8 .cse11) (not (<= |old(~a25~0)| 0)) (and .cse14 .cse9 .cse10 .cse11 .cse12) (and .cse1 .cse13 (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse0 .cse1 .cse2 .cse7 .cse11 .cse6) (not (<= |old(~a17~0)| 8)))) [2020-07-21 20:10:24,701 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 20:10:24,701 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 20:10:24,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:10:24 BoogieIcfgContainer [2020-07-21 20:10:24,724 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:10:24,726 INFO L168 Benchmark]: Toolchain (without parser) took 24366.68 ms. Allocated memory was 145.8 MB in the beginning and 594.0 MB in the end (delta: 448.3 MB). Free memory was 102.0 MB in the beginning and 471.2 MB in the end (delta: -369.1 MB). Peak memory consumption was 428.6 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:24,727 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 20:10:24,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 846.76 ms. Allocated memory was 145.8 MB in the beginning and 206.0 MB in the end (delta: 60.3 MB). Free memory was 101.6 MB in the beginning and 172.6 MB in the end (delta: -71.0 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:24,728 INFO L168 Benchmark]: Boogie Preprocessor took 105.91 ms. Allocated memory is still 206.0 MB. Free memory was 172.6 MB in the beginning and 167.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:24,729 INFO L168 Benchmark]: RCFGBuilder took 1323.11 ms. Allocated memory was 206.0 MB in the beginning and 239.6 MB in the end (delta: 33.6 MB). Free memory was 167.7 MB in the beginning and 183.8 MB in the end (delta: -16.1 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:24,730 INFO L168 Benchmark]: TraceAbstraction took 22084.49 ms. Allocated memory was 239.6 MB in the beginning and 594.0 MB in the end (delta: 354.4 MB). Free memory was 183.8 MB in the beginning and 471.2 MB in the end (delta: -287.4 MB). Peak memory consumption was 416.5 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:24,733 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 846.76 ms. Allocated memory was 145.8 MB in the beginning and 206.0 MB in the end (delta: 60.3 MB). Free memory was 101.6 MB in the beginning and 172.6 MB in the end (delta: -71.0 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.91 ms. Allocated memory is still 206.0 MB. Free memory was 172.6 MB in the beginning and 167.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1323.11 ms. Allocated memory was 206.0 MB in the beginning and 239.6 MB in the end (delta: 33.6 MB). Free memory was 167.7 MB in the beginning and 183.8 MB in the end (delta: -16.1 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22084.49 ms. Allocated memory was 239.6 MB in the beginning and 594.0 MB in the end (delta: 354.4 MB). Free memory was 183.8 MB in the beginning and 471.2 MB in the end (delta: -287.4 MB). Peak memory consumption was 416.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 442]: 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: 606]: Loop Invariant Derived loop invariant: ((((((((((((((!(1 == \old(a19)) || ((((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a17 <= 8) && a19 <= \old(a19)) && a28 <= 7) && 1 == a25)) || (((((a28 <= 10 && a25 <= 0) && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || !(\old(a28) <= 7)) || (((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && 1 <= a19) && a19 <= \old(a19)) && 1 == a25)) || (((a17 <= \old(a17) && 8 <= a17) && a28 <= 9) && a19 <= 0)) || (((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && a28 <= 10) && a19 <= 0) && 1 == a25)) || (((1 == a19 && a17 <= 8) && a28 <= 10) && 10 <= a28)) || (((((1 == a19 && a17 <= 8) && a17 <= 7) && a19 <= \old(a19)) && 7 < \old(a17)) && a28 <= 7)) || !(\old(a11) <= 0)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 9) && a25 <= 0) && 9 <= a28)) || !(\old(a25) <= 0)) || ((((a28 <= 9 && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || ((((a17 <= \old(a17) && a11 <= 0) && a28 <= \old(a28)) && a19 == \old(a19)) && a25 == \old(a25))) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 10) && 9 <= a28) && 1 == a25)) || !(\old(a17) <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.4s, OverallIterations: 13, TraceHistogramMax: 5, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1182 SDtfs, 4733 SDslu, 645 SDs, 0 SdLazy, 8821 SolverSat, 1220 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3285 GetRequests, 3217 SyntacticMatches, 10 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4979occurred 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: 0.9s AutomataMinimizationTime, 13 MinimizatonAttempts, 2228 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 225 PreInvPairs, 275 NumberOfFragments, 1112 HoareAnnotationTreeSize, 225 FomulaSimplifications, 5426 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4010 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1993 NumberOfCodeBlocks, 1993 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 3243 ConstructedInterpolants, 0 QuantifiedInterpolants, 1045319 SizeOfPredicates, 16 NumberOfNonLiveVariables, 5357 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 20 InterpolantComputations, 6 PerfectInterpolantSequences, 1868/1974 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...