/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 05:03:58,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 05:03:58,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 05:03:58,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 05:03:58,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 05:03:58,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 05:03:58,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 05:03:58,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 05:03:58,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 05:03:58,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 05:03:58,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 05:03:58,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 05:03:58,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 05:03:58,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 05:03:58,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 05:03:58,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 05:03:58,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 05:03:58,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 05:03:58,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 05:03:58,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 05:03:58,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 05:03:58,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 05:03:58,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 05:03:58,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 05:03:58,765 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 05:03:58,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 05:03:58,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 05:03:58,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 05:03:58,778 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 05:03:58,810 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 05:03:58,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 05:03:58,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 05:03:58,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 05:03:58,814 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 05:03:58,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 05:03:58,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 05:03:58,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 05:03:58,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 05:03:58,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 05:03:58,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 05:03:58,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 05:03:58,819 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 05:03:58,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 05:03:58,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 05:03:58,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 05:03:58,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 05:03:58,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:03:58,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 05:03:58,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 05:03:58,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 05:03:58,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 05:03:58,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 05:03:58,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 05:03:58,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 05:03:58,822 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 05:03:59,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 05:03:59,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 05:03:59,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 05:03:59,243 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 05:03:59,244 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 05:03:59,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c [2020-12-22 05:03:59,340 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2ae03861/95e1d6d5ced54dffa3381af70360d5fd/FLAG8bc500596 [2020-12-22 05:04:00,051 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 05:04:00,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c [2020-12-22 05:04:00,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2ae03861/95e1d6d5ced54dffa3381af70360d5fd/FLAG8bc500596 [2020-12-22 05:04:00,391 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2ae03861/95e1d6d5ced54dffa3381af70360d5fd [2020-12-22 05:04:00,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 05:04:00,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 05:04:00,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 05:04:00,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 05:04:00,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 05:04:00,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:04:00" (1/1) ... [2020-12-22 05:04:00,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b2c3d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:04:00, skipping insertion in model container [2020-12-22 05:04:00,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:04:00" (1/1) ... [2020-12-22 05:04:00,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 05:04:00,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 05:04:00,586 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c[525,538] [2020-12-22 05:04:00,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:04:00,632 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 05:04:00,647 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c[525,538] [2020-12-22 05:04:00,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:04:00,701 INFO L208 MainTranslator]: Completed translation [2020-12-22 05:04:00,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:04:00 WrapperNode [2020-12-22 05:04:00,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 05:04:00,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 05:04:00,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 05:04:00,707 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 05:04:00,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:04:00" (1/1) ... [2020-12-22 05:04:00,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:04:00" (1/1) ... [2020-12-22 05:04:00,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 05:04:00,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 05:04:00,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 05:04:00,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 05:04:00,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:04:00" (1/1) ... [2020-12-22 05:04:00,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:04:00" (1/1) ... [2020-12-22 05:04:00,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:04:00" (1/1) ... [2020-12-22 05:04:00,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:04:00" (1/1) ... [2020-12-22 05:04:00,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:04:00" (1/1) ... [2020-12-22 05:04:00,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:04:00" (1/1) ... [2020-12-22 05:04:00,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:04:00" (1/1) ... [2020-12-22 05:04:00,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 05:04:00,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 05:04:00,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 05:04:00,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 05:04:00,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:04:00" (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 [2020-12-22 05:04:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 05:04:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 05:04:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 05:04:00,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 05:04:01,418 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 05:04:01,419 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2020-12-22 05:04:01,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:04:01 BoogieIcfgContainer [2020-12-22 05:04:01,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 05:04:01,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 05:04:01,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 05:04:01,430 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 05:04:01,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:04:00" (1/3) ... [2020-12-22 05:04:01,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4e737a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:04:01, skipping insertion in model container [2020-12-22 05:04:01,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:04:00" (2/3) ... [2020-12-22 05:04:01,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4e737a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:04:01, skipping insertion in model container [2020-12-22 05:04:01,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:04:01" (3/3) ... [2020-12-22 05:04:01,434 INFO L111 eAbstractionObserver]: Analyzing ICFG dijkstra-u_unwindbound2.c [2020-12-22 05:04:01,443 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 05:04:01,449 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2020-12-22 05:04:01,472 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-12-22 05:04:01,523 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 05:04:01,524 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 05:04:01,524 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 05:04:01,524 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 05:04:01,526 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 05:04:01,526 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 05:04:01,527 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 05:04:01,527 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 05:04:01,549 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-12-22 05:04:01,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 05:04:01,561 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:04:01,562 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:04:01,563 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:04:01,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:04:01,570 INFO L82 PathProgramCache]: Analyzing trace with hash -578123657, now seen corresponding path program 1 times [2020-12-22 05:04:01,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:04:01,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073589955] [2020-12-22 05:04:01,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:04:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:04:01,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:04:01,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073589955] [2020-12-22 05:04:01,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:04:01,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:04:01,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145882736] [2020-12-22 05:04:01,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 05:04:01,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:04:01,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 05:04:01,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 05:04:01,779 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2020-12-22 05:04:01,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:04:01,804 INFO L93 Difference]: Finished difference Result 97 states and 128 transitions. [2020-12-22 05:04:01,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 05:04:01,806 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-22 05:04:01,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:04:01,817 INFO L225 Difference]: With dead ends: 97 [2020-12-22 05:04:01,818 INFO L226 Difference]: Without dead ends: 46 [2020-12-22 05:04:01,821 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 05:04:01,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-12-22 05:04:01,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-12-22 05:04:01,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-12-22 05:04:01,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2020-12-22 05:04:01,864 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 9 [2020-12-22 05:04:01,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:04:01,865 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2020-12-22 05:04:01,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 05:04:01,865 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2020-12-22 05:04:01,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 05:04:01,866 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:04:01,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:04:01,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 05:04:01,867 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:04:01,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:04:01,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1987056657, now seen corresponding path program 1 times [2020-12-22 05:04:01,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:04:01,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334466691] [2020-12-22 05:04:01,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:04:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:04:01,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:04:01,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334466691] [2020-12-22 05:04:01,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:04:01,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 05:04:01,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163416091] [2020-12-22 05:04:01,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:04:01,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:04:01,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:04:01,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:04:01,952 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 4 states. [2020-12-22 05:04:01,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:04:01,989 INFO L93 Difference]: Finished difference Result 87 states and 94 transitions. [2020-12-22 05:04:01,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 05:04:01,990 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-22 05:04:01,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:04:01,991 INFO L225 Difference]: With dead ends: 87 [2020-12-22 05:04:01,991 INFO L226 Difference]: Without dead ends: 48 [2020-12-22 05:04:01,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:04:01,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-12-22 05:04:02,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-12-22 05:04:02,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-12-22 05:04:02,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-12-22 05:04:02,011 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 10 [2020-12-22 05:04:02,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:04:02,011 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-12-22 05:04:02,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:04:02,011 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-12-22 05:04:02,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 05:04:02,013 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:04:02,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:04:02,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 05:04:02,014 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:04:02,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:04:02,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1420419469, now seen corresponding path program 1 times [2020-12-22 05:04:02,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:04:02,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585575525] [2020-12-22 05:04:02,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:04:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:04:02,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:04:02,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585575525] [2020-12-22 05:04:02,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:04:02,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:04:02,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462355650] [2020-12-22 05:04:02,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:04:02,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:04:02,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:04:02,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:04:02,297 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 5 states. [2020-12-22 05:04:21,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:04:21,676 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2020-12-22 05:04:21,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 05:04:21,678 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-22 05:04:21,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:04:21,680 INFO L225 Difference]: With dead ends: 74 [2020-12-22 05:04:21,680 INFO L226 Difference]: Without dead ends: 62 [2020-12-22 05:04:21,681 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 05:04:21,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-12-22 05:04:21,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56. [2020-12-22 05:04:21,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-12-22 05:04:21,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 62 transitions. [2020-12-22 05:04:21,691 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 62 transitions. Word has length 11 [2020-12-22 05:04:21,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:04:21,691 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 62 transitions. [2020-12-22 05:04:21,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:04:21,692 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 62 transitions. [2020-12-22 05:04:21,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 05:04:21,692 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:04:21,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:04:21,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 05:04:21,693 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:04:21,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:04:21,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1083313625, now seen corresponding path program 1 times [2020-12-22 05:04:21,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:04:21,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880517629] [2020-12-22 05:04:21,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:04:21,712 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:04:21,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1075796948] [2020-12-22 05:04:21,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:04:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:04:21,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 05:04:21,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:04:21,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:04:21,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880517629] [2020-12-22 05:04:21,950 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:04:21,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075796948] [2020-12-22 05:04:21,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:04:21,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:04:21,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13125354] [2020-12-22 05:04:21,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:04:21,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:04:21,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:04:21,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:04:21,954 INFO L87 Difference]: Start difference. First operand 56 states and 62 transitions. Second operand 5 states. [2020-12-22 05:04:22,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:04:22,002 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2020-12-22 05:04:22,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:04:22,003 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 05:04:22,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:04:22,005 INFO L225 Difference]: With dead ends: 59 [2020-12-22 05:04:22,005 INFO L226 Difference]: Without dead ends: 55 [2020-12-22 05:04:22,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:04:22,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-12-22 05:04:22,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2020-12-22 05:04:22,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-12-22 05:04:22,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2020-12-22 05:04:22,016 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 12 [2020-12-22 05:04:22,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:04:22,016 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2020-12-22 05:04:22,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:04:22,017 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2020-12-22 05:04:22,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 05:04:22,017 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:04:22,018 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:04:22,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:04:22,234 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:04:22,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:04:22,235 INFO L82 PathProgramCache]: Analyzing trace with hash 2047013432, now seen corresponding path program 1 times [2020-12-22 05:04:22,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:04:22,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295475188] [2020-12-22 05:04:22,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:04:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:04:22,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:04:22,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295475188] [2020-12-22 05:04:22,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223853727] [2020-12-22 05:04:22,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:04:22,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:04:22,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 05:04:22,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:04:22,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:04:22,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 05:04:22,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-12-22 05:04:22,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120825133] [2020-12-22 05:04:22,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:04:22,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:04:22,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:04:22,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:04:22,479 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 5 states. [2020-12-22 05:04:22,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:04:22,548 INFO L93 Difference]: Finished difference Result 95 states and 103 transitions. [2020-12-22 05:04:22,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 05:04:22,549 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-22 05:04:22,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:04:22,551 INFO L225 Difference]: With dead ends: 95 [2020-12-22 05:04:22,551 INFO L226 Difference]: Without dead ends: 56 [2020-12-22 05:04:22,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 05:04:22,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-12-22 05:04:22,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-12-22 05:04:22,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-12-22 05:04:22,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2020-12-22 05:04:22,564 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 13 [2020-12-22 05:04:22,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:04:22,564 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2020-12-22 05:04:22,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:04:22,565 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2020-12-22 05:04:22,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 05:04:22,568 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:04:22,568 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:04:22,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:04:22,774 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:04:22,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:04:22,776 INFO L82 PathProgramCache]: Analyzing trace with hash -918298294, now seen corresponding path program 1 times [2020-12-22 05:04:22,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:04:22,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887028242] [2020-12-22 05:04:22,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:04:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:04:22,911 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:04:22,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887028242] [2020-12-22 05:04:22,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:04:22,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:04:22,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435909427] [2020-12-22 05:04:22,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 05:04:22,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:04:22,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 05:04:22,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 05:04:22,914 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand 6 states. [2020-12-22 05:04:22,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:04:22,987 INFO L93 Difference]: Finished difference Result 88 states and 95 transitions. [2020-12-22 05:04:22,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 05:04:22,988 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-22 05:04:22,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:04:22,989 INFO L225 Difference]: With dead ends: 88 [2020-12-22 05:04:22,989 INFO L226 Difference]: Without dead ends: 49 [2020-12-22 05:04:22,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 05:04:22,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-12-22 05:04:22,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-12-22 05:04:22,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-12-22 05:04:22,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2020-12-22 05:04:22,998 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 14 [2020-12-22 05:04:22,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:04:22,998 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2020-12-22 05:04:22,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 05:04:22,998 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2020-12-22 05:04:22,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 05:04:22,999 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:04:22,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:04:22,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 05:04:23,000 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:04:23,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:04:23,000 INFO L82 PathProgramCache]: Analyzing trace with hash -966633767, now seen corresponding path program 1 times [2020-12-22 05:04:23,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:04:23,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048181909] [2020-12-22 05:04:23,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:04:23,012 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:04:23,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [329390206] [2020-12-22 05:04:23,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:04:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:04:23,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-22 05:04:23,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:04:23,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:04:23,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048181909] [2020-12-22 05:04:23,265 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:04:23,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329390206] [2020-12-22 05:04:23,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:04:23,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 05:04:23,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358668811] [2020-12-22 05:04:23,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 05:04:23,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:04:23,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 05:04:23,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 05:04:23,270 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 6 states. [2020-12-22 05:05:54,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:05:54,178 INFO L93 Difference]: Finished difference Result 71 states and 75 transitions. [2020-12-22 05:05:54,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 05:05:54,179 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-12-22 05:05:54,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:05:54,180 INFO L225 Difference]: With dead ends: 71 [2020-12-22 05:05:54,180 INFO L226 Difference]: Without dead ends: 50 [2020-12-22 05:05:54,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-22 05:05:54,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-22 05:05:54,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2020-12-22 05:05:54,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-12-22 05:05:54,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2020-12-22 05:05:54,188 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 15 [2020-12-22 05:05:54,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:05:54,189 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2020-12-22 05:05:54,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 05:05:54,189 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2020-12-22 05:05:54,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 05:05:54,190 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:05:54,190 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:05:54,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:05:54,405 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:05:54,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:05:54,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1597540912, now seen corresponding path program 1 times [2020-12-22 05:05:54,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:05:54,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346882221] [2020-12-22 05:05:54,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:05:54,421 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:05:54,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1900187237] [2020-12-22 05:05:54,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:05:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:05:54,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 05:05:54,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:05:54,693 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 05:05:54,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346882221] [2020-12-22 05:05:54,694 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:05:54,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900187237] [2020-12-22 05:05:54,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:05:54,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 05:05:54,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071153883] [2020-12-22 05:05:54,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 05:05:54,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:05:54,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 05:05:54,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 05:05:54,696 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand 6 states. [2020-12-22 05:05:57,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:05:57,214 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2020-12-22 05:05:57,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 05:05:57,215 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-12-22 05:05:57,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:05:57,216 INFO L225 Difference]: With dead ends: 48 [2020-12-22 05:05:57,216 INFO L226 Difference]: Without dead ends: 42 [2020-12-22 05:05:57,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-22 05:05:57,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-22 05:05:57,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2020-12-22 05:05:57,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-12-22 05:05:57,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2020-12-22 05:05:57,222 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 15 [2020-12-22 05:05:57,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:05:57,223 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2020-12-22 05:05:57,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 05:05:57,223 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2020-12-22 05:05:57,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 05:05:57,224 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:05:57,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:05:57,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:05:57,439 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:05:57,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:05:57,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1221957124, now seen corresponding path program 1 times [2020-12-22 05:05:57,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:05:57,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71427621] [2020-12-22 05:05:57,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:05:57,453 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:05:57,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [616309657] [2020-12-22 05:05:57,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:05:57,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:05:57,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-22 05:05:57,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:05:57,738 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 05:05:57,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:05:57,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71427621] [2020-12-22 05:05:57,785 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:05:57,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616309657] [2020-12-22 05:05:57,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:05:57,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 05:05:57,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955841955] [2020-12-22 05:05:57,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 05:05:57,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:05:57,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 05:05:57,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 05:05:57,788 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 6 states. [2020-12-22 05:05:58,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:05:58,094 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2020-12-22 05:05:58,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 05:05:58,095 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-22 05:05:58,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:05:58,095 INFO L225 Difference]: With dead ends: 39 [2020-12-22 05:05:58,095 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 05:05:58,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-22 05:05:58,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 05:05:58,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 05:05:58,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 05:05:58,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 05:05:58,097 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-12-22 05:05:58,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:05:58,097 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 05:05:58,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 05:05:58,098 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 05:05:58,098 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 05:05:58,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:05:58,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 05:05:58,701 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 23 [2020-12-22 05:05:59,052 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 38 [2020-12-22 05:05:59,187 INFO L192 CegarLoopUtils]: At program point L60(lines 20 61) the Hoare annotation is: true [2020-12-22 05:05:59,187 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-12-22 05:05:59,188 INFO L189 CegarLoopUtils]: For program point L52(lines 52 55) no Hoare annotation was computed. [2020-12-22 05:05:59,188 INFO L189 CegarLoopUtils]: For program point L52-2(lines 20 61) no Hoare annotation was computed. [2020-12-22 05:05:59,188 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-12-22 05:05:59,188 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 05:05:59,188 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 05:05:59,189 INFO L189 CegarLoopUtils]: For program point L12(lines 12 15) no Hoare annotation was computed. [2020-12-22 05:05:59,189 INFO L185 CegarLoopUtils]: At program point L12-2(lines 11 17) the Hoare annotation is: (and (= ULTIMATE.start_main_~q~0 1) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= ULTIMATE.start_main_~h~0 0) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (<= (+ (* 4294967296 (div (+ ULTIMATE.start_main_~q~0 (* ULTIMATE.start_main_~p~0 2)) 4294967296)) ULTIMATE.start_main_~r~0 (* 4294967296 (div ULTIMATE.start_main_~q~0 4294967296)) 1) (+ ULTIMATE.start_main_~q~0 (* 4294967296 (div ULTIMATE.start_main_~r~0 4294967296)))) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2020-12-22 05:05:59,189 INFO L189 CegarLoopUtils]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2020-12-22 05:05:59,189 INFO L185 CegarLoopUtils]: At program point L12-5(lines 11 17) the Hoare annotation is: (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2020-12-22 05:05:59,189 INFO L189 CegarLoopUtils]: For program point L12-6(lines 12 15) no Hoare annotation was computed. [2020-12-22 05:05:59,189 INFO L185 CegarLoopUtils]: At program point L12-8(lines 11 17) the Hoare annotation is: (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2020-12-22 05:05:59,189 INFO L189 CegarLoopUtils]: For program point L12-9(lines 12 15) no Hoare annotation was computed. [2020-12-22 05:05:59,190 INFO L185 CegarLoopUtils]: At program point L12-11(lines 11 17) the Hoare annotation is: (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2020-12-22 05:05:59,190 INFO L189 CegarLoopUtils]: For program point L12-12(lines 12 15) no Hoare annotation was computed. [2020-12-22 05:05:59,190 INFO L185 CegarLoopUtils]: At program point L12-14(lines 11 17) the Hoare annotation is: (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2020-12-22 05:05:59,190 INFO L189 CegarLoopUtils]: For program point L12-15(lines 12 15) no Hoare annotation was computed. [2020-12-22 05:05:59,190 INFO L185 CegarLoopUtils]: At program point L12-17(lines 46 47) the Hoare annotation is: (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2020-12-22 05:05:59,190 INFO L189 CegarLoopUtils]: For program point L12-18(lines 12 15) no Hoare annotation was computed. [2020-12-22 05:05:59,191 INFO L185 CegarLoopUtils]: At program point L12-20(lines 11 17) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0)) (.cse1 (= ULTIMATE.start_main_~p~0 0))) (or (and (= ULTIMATE.start_main_~h~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823) .cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 2 ~counter~0) .cse1) (and (= ULTIMATE.start_main_~q~0 1) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) .cse0 (<= (+ (* 4294967296 (div (+ ULTIMATE.start_main_~q~0 (* ULTIMATE.start_main_~p~0 2)) 4294967296)) ULTIMATE.start_main_~r~0 (* 4294967296 (div ULTIMATE.start_main_~q~0 4294967296)) 1) (+ ULTIMATE.start_main_~q~0 (* 4294967296 (div ULTIMATE.start_main_~r~0 4294967296)))) .cse1))) [2020-12-22 05:05:59,191 INFO L189 CegarLoopUtils]: For program point L12-21(lines 12 15) no Hoare annotation was computed. [2020-12-22 05:05:59,191 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-12-22 05:05:59,191 INFO L185 CegarLoopUtils]: At program point L12-23(lines 11 17) the Hoare annotation is: (let ((.cse0 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (.cse1 (= ULTIMATE.start_main_~p~0 0))) (or (and .cse0 (= ULTIMATE.start_main_~h~0 0) (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 2 ~counter~0) .cse1) (and (= ULTIMATE.start_main_~q~0 1) .cse0 (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (<= (+ (* 4294967296 (div (+ ULTIMATE.start_main_~q~0 (* ULTIMATE.start_main_~p~0 2)) 4294967296)) ULTIMATE.start_main_~r~0 (* 4294967296 (div ULTIMATE.start_main_~q~0 4294967296)) 1) (+ ULTIMATE.start_main_~q~0 (* 4294967296 (div ULTIMATE.start_main_~r~0 4294967296)))) .cse1))) [2020-12-22 05:05:59,191 INFO L189 CegarLoopUtils]: For program point L12-24(lines 12 15) no Hoare annotation was computed. [2020-12-22 05:05:59,191 INFO L192 CegarLoopUtils]: At program point L12-26(lines 11 17) the Hoare annotation is: true [2020-12-22 05:05:59,191 INFO L189 CegarLoopUtils]: For program point L13(lines 13 14) no Hoare annotation was computed. [2020-12-22 05:05:59,192 INFO L189 CegarLoopUtils]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2020-12-22 05:05:59,192 INFO L189 CegarLoopUtils]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2020-12-22 05:05:59,192 INFO L189 CegarLoopUtils]: For program point L13-3(lines 13 14) no Hoare annotation was computed. [2020-12-22 05:05:59,192 INFO L189 CegarLoopUtils]: For program point L13-4(lines 13 14) no Hoare annotation was computed. [2020-12-22 05:05:59,192 INFO L189 CegarLoopUtils]: For program point L13-5(lines 13 14) no Hoare annotation was computed. [2020-12-22 05:05:59,192 INFO L189 CegarLoopUtils]: For program point L13-6(lines 13 14) no Hoare annotation was computed. [2020-12-22 05:05:59,192 INFO L189 CegarLoopUtils]: For program point L38(lines 38 56) no Hoare annotation was computed. [2020-12-22 05:05:59,192 INFO L189 CegarLoopUtils]: For program point L13-7(lines 13 14) no Hoare annotation was computed. [2020-12-22 05:05:59,192 INFO L189 CegarLoopUtils]: For program point L13-8(lines 13 14) no Hoare annotation was computed. [2020-12-22 05:05:59,193 INFO L189 CegarLoopUtils]: For program point L38-2(lines 38 56) no Hoare annotation was computed. [2020-12-22 05:05:59,193 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-12-22 05:05:59,193 INFO L189 CegarLoopUtils]: For program point L30-1(lines 30 35) no Hoare annotation was computed. [2020-12-22 05:05:59,193 INFO L185 CegarLoopUtils]: At program point L30-3(lines 30 35) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~h~0 0)) (.cse1 (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823)) (.cse2 (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0)) (.cse3 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse4 (= ULTIMATE.start_main_~p~0 0))) (or (and (<= 1 ~counter~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and (= ULTIMATE.start_main_~q~0 1) .cse0 .cse1 .cse2 .cse3 (<= 0 ~counter~0) .cse4))) [2020-12-22 05:05:59,193 INFO L189 CegarLoopUtils]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-12-22 05:05:59,193 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-12-22 05:05:59,193 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 05:05:59,194 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-12-22 05:05:59,194 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-12-22 05:05:59,194 INFO L189 CegarLoopUtils]: For program point L8(lines 8 10) no Hoare annotation was computed. [2020-12-22 05:05:59,194 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 05:05:59,194 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-12-22 05:05:59,194 INFO L189 CegarLoopUtils]: For program point L9(line 9) no Hoare annotation was computed. [2020-12-22 05:05:59,194 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-12-22 05:05:59,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 05:05:59 BoogieIcfgContainer [2020-12-22 05:05:59,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 05:05:59,222 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 05:05:59,222 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 05:05:59,222 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 05:05:59,223 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:04:01" (3/4) ... [2020-12-22 05:05:59,226 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 05:05:59,243 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-12-22 05:05:59,243 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 05:05:59,244 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:05:59,244 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:05:59,324 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c-witness.graphml [2020-12-22 05:05:59,324 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 05:05:59,328 INFO L168 Benchmark]: Toolchain (without parser) took 118929.05 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 77.5 MB in the end (delta: 49.0 MB). Peak memory consumption was 49.6 MB. Max. memory is 8.0 GB. [2020-12-22 05:05:59,329 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 05:05:59,329 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.41 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 115.3 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-22 05:05:59,330 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.88 ms. Allocated memory is still 151.0 MB. Free memory was 115.1 MB in the beginning and 113.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 05:05:59,330 INFO L168 Benchmark]: Boogie Preprocessor took 34.99 ms. Allocated memory is still 151.0 MB. Free memory was 113.4 MB in the beginning and 111.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 05:05:59,331 INFO L168 Benchmark]: RCFGBuilder took 596.52 ms. Allocated memory is still 151.0 MB. Free memory was 111.9 MB in the beginning and 127.2 MB in the end (delta: -15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-12-22 05:05:59,334 INFO L168 Benchmark]: TraceAbstraction took 117798.43 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 81.2 MB in the end (delta: 45.5 MB). Peak memory consumption was 80.5 MB. Max. memory is 8.0 GB. [2020-12-22 05:05:59,335 INFO L168 Benchmark]: Witness Printer took 102.52 ms. Allocated memory is still 151.0 MB. Free memory was 81.2 MB in the beginning and 77.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 05:05:59,338 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 303.41 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 115.3 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 77.88 ms. Allocated memory is still 151.0 MB. Free memory was 115.1 MB in the beginning and 113.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.99 ms. Allocated memory is still 151.0 MB. Free memory was 113.4 MB in the beginning and 111.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 596.52 ms. Allocated memory is still 151.0 MB. Free memory was 111.9 MB in the beginning and 127.2 MB in the end (delta: -15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 117798.43 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 81.2 MB in the end (delta: 45.5 MB). Peak memory consumption was 80.5 MB. Max. memory is 8.0 GB. * Witness Printer took 102.52 ms. Allocated memory is still 151.0 MB. Free memory was 81.2 MB in the beginning and 77.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((((q == 1 && !(0 == cond)) && h == 0) && n == r) && 4294967296 * ((q + p * 2) / 4294967296) + r + 4294967296 * (q / 4294967296) + 1 <= q + 4294967296 * (r / 4294967296)) && cond == 1) && 2 <= counter) && p == 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((!(0 == cond) && h == 0) && n % 4294967296 < 1073741823) && cond == 1) && 2 <= counter) && p == 0) || ((((q == 1 && !(0 == cond)) && n == r) && 4294967296 * ((q + p * 2) / 4294967296) + r + 4294967296 * (q / 4294967296) + 1 <= q + 4294967296 * (r / 4294967296)) && p == 0) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((((((q == 1 && h == 0) && 1 == cond) && n % 4294967296 < 1073741823) && n == r) && cond == 1) && 2 <= counter) && p == 0 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((1 <= counter && h == 0) && n % 4294967296 < 1073741823) && n == r) && cond == 1) && p == 0) || ((((((q == 1 && h == 0) && n % 4294967296 < 1073741823) && n == r) && cond == 1) && 0 <= counter) && p == 0) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((((q == 1 && h == 0) && 1 == cond) && n % 4294967296 < 1073741823) && n == r) && cond == 1) && 2 <= counter) && p == 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((((q == 1 && h == 0) && 1 == cond) && n % 4294967296 < 1073741823) && n == r) && cond == 1) && 2 <= counter) && p == 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((((h == 0 && 1 == cond) && n % 4294967296 < 1073741823) && n == r) && cond == 1) && 2 <= counter) && p == 0) || ((((q == 1 && !(0 == cond)) && n == r) && 4294967296 * ((q + p * 2) / 4294967296) + r + 4294967296 * (q / 4294967296) + 1 <= q + 4294967296 * (r / 4294967296)) && p == 0) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((((q == 1 && h == 0) && 1 == cond) && n % 4294967296 < 1073741823) && n == r) && cond == 1) && 2 <= counter) && p == 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((((q == 1 && h == 0) && 1 == cond) && n % 4294967296 < 1073741823) && n == r) && cond == 1) && 2 <= counter) && p == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 116.7s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 113.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 339 SDtfs, 386 SDslu, 499 SDs, 0 SdLazy, 221 SolverSat, 81 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 111.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 13 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 27 NumberOfFragments, 357 HoareAnnotationTreeSize, 11 FomulaSimplifications, 112 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 56 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 9997 SizeOfPredicates, 25 NumberOfNonLiveVariables, 370 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 6/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...