/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label47.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:34:46,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:34:46,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:34:46,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 18:34:46,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:34:46,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:34:46,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:34:46,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:34:46,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:34:46,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:34:46,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:34:46,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:34:46,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:34:46,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:34:46,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:34:46,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:34:46,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 18:34:46,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:34:46,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:34:46,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:34:46,788 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 [2020-10-23 18:34:46,849 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:34:46,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:34:46,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:34:46,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:34:46,856 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:34:46,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:34:46,857 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:34:46,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:34:46,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:34:46,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:34:46,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:34:46,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:34:46,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:34:46,859 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:34:46,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:34:46,860 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:34:46,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:34:46,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:34:46,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:34:46,861 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:34:46,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:34:46,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:34:46,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:34:46,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:34:46,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:34:46,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:34:46,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:34:46,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:34:46,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:34:46,864 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:34:47,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:34:47,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:34:47,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:34:47,404 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:34:47,404 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:34:47,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label47.c [2020-10-23 18:34:47,504 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe1c96fd/2c27d761ac66402fb89566d9c79b9ab7/FLAG2c1e2b07c [2020-10-23 18:34:48,419 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:34:48,424 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label47.c [2020-10-23 18:34:48,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe1c96fd/2c27d761ac66402fb89566d9c79b9ab7/FLAG2c1e2b07c [2020-10-23 18:34:48,654 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe1c96fd/2c27d761ac66402fb89566d9c79b9ab7 [2020-10-23 18:34:48,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:34:48,670 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:34:48,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:34:48,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:34:48,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:34:48,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:34:48" (1/1) ... [2020-10-23 18:34:48,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@93a579f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:48, skipping insertion in model container [2020-10-23 18:34:48,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:34:48" (1/1) ... [2020-10-23 18:34:48,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:34:48,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:34:49,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:34:49,266 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:34:49,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:34:49,547 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:34:49,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:49 WrapperNode [2020-10-23 18:34:49,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:34:49,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:34:49,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:34:49,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:34:49,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:49" (1/1) ... [2020-10-23 18:34:49,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:49" (1/1) ... [2020-10-23 18:34:49,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:49" (1/1) ... [2020-10-23 18:34:49,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:49" (1/1) ... [2020-10-23 18:34:49,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:49" (1/1) ... [2020-10-23 18:34:49,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:49" (1/1) ... [2020-10-23 18:34:49,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:49" (1/1) ... [2020-10-23 18:34:49,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:34:49,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:34:49,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:34:49,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:34:49,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:49" (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 [2020-10-23 18:34:49,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:34:49,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:34:49,832 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:34:49,832 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-23 18:34:49,832 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:34:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-23 18:34:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:34:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:34:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:34:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:34:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:34:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:34:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:34:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:34:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:34:49,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:34:49,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:34:49,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:34:49,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:34:51,391 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:34:51,392 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:34:51,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:34:51 BoogieIcfgContainer [2020-10-23 18:34:51,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:34:51,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:34:51,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:34:51,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:34:51,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:34:48" (1/3) ... [2020-10-23 18:34:51,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726e6c00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:34:51, skipping insertion in model container [2020-10-23 18:34:51,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:49" (2/3) ... [2020-10-23 18:34:51,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726e6c00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:34:51, skipping insertion in model container [2020-10-23 18:34:51,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:34:51" (3/3) ... [2020-10-23 18:34:51,405 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label47.c [2020-10-23 18:34:51,420 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:34:51,427 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:34:51,443 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:34:51,476 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:34:51,477 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:34:51,477 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:34:51,477 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:34:51,477 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:34:51,478 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:34:51,478 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:34:51,478 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:34:51,504 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-23 18:34:51,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-23 18:34:51,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:34:51,520 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:34:51,521 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:34:51,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:34:51,529 INFO L82 PathProgramCache]: Analyzing trace with hash -2076300467, now seen corresponding path program 1 times [2020-10-23 18:34:51,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:34:51,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771078442] [2020-10-23 18:34:51,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:34:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:52,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:34:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:52,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:34:52,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771078442] [2020-10-23 18:34:52,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:34:52,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 18:34:52,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821665126] [2020-10-23 18:34:52,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 18:34:52,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:34:52,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 18:34:52,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 18:34:52,294 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 4 states. [2020-10-23 18:34:52,471 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-23 18:34:54,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:34:54,489 INFO L93 Difference]: Finished difference Result 667 states and 1119 transitions. [2020-10-23 18:34:54,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 18:34:54,491 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 114 [2020-10-23 18:34:54,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:34:54,511 INFO L225 Difference]: With dead ends: 667 [2020-10-23 18:34:54,512 INFO L226 Difference]: Without dead ends: 342 [2020-10-23 18:34:54,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:34:54,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-10-23 18:34:54,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 338. [2020-10-23 18:34:54,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-10-23 18:34:54,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 489 transitions. [2020-10-23 18:34:54,620 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 489 transitions. Word has length 114 [2020-10-23 18:34:54,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:34:54,621 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 489 transitions. [2020-10-23 18:34:54,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 18:34:54,622 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 489 transitions. [2020-10-23 18:34:54,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-23 18:34:54,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:34:54,627 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:34:54,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:34:54,628 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:34:54,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:34:54,629 INFO L82 PathProgramCache]: Analyzing trace with hash -679714687, now seen corresponding path program 1 times [2020-10-23 18:34:54,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:34:54,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841999279] [2020-10-23 18:34:54,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:34:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:54,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:34:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:54,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:34:54,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:55,013 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:34:55,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841999279] [2020-10-23 18:34:55,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:34:55,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:34:55,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887793068] [2020-10-23 18:34:55,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 18:34:55,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:34:55,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 18:34:55,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:34:55,018 INFO L87 Difference]: Start difference. First operand 338 states and 489 transitions. Second operand 7 states. [2020-10-23 18:34:55,187 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-23 18:34:57,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:34:57,135 INFO L93 Difference]: Finished difference Result 991 states and 1464 transitions. [2020-10-23 18:34:57,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-23 18:34:57,135 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 122 [2020-10-23 18:34:57,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:34:57,144 INFO L225 Difference]: With dead ends: 991 [2020-10-23 18:34:57,144 INFO L226 Difference]: Without dead ends: 659 [2020-10-23 18:34:57,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:34:57,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2020-10-23 18:34:57,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 643. [2020-10-23 18:34:57,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-10-23 18:34:57,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 883 transitions. [2020-10-23 18:34:57,212 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 883 transitions. Word has length 122 [2020-10-23 18:34:57,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:34:57,213 INFO L481 AbstractCegarLoop]: Abstraction has 643 states and 883 transitions. [2020-10-23 18:34:57,213 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 18:34:57,213 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 883 transitions. [2020-10-23 18:34:57,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-23 18:34:57,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:34:57,218 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:34:57,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:34:57,219 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:34:57,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:34:57,220 INFO L82 PathProgramCache]: Analyzing trace with hash 562889544, now seen corresponding path program 1 times [2020-10-23 18:34:57,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:34:57,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731223369] [2020-10-23 18:34:57,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:34:57,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:57,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:34:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:57,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:34:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:57,462 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:34:57,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731223369] [2020-10-23 18:34:57,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:34:57,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:34:57,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576014016] [2020-10-23 18:34:57,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 18:34:57,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:34:57,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 18:34:57,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:34:57,465 INFO L87 Difference]: Start difference. First operand 643 states and 883 transitions. Second operand 7 states. [2020-10-23 18:34:59,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:34:59,646 INFO L93 Difference]: Finished difference Result 1925 states and 2786 transitions. [2020-10-23 18:34:59,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:34:59,647 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 125 [2020-10-23 18:34:59,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:34:59,659 INFO L225 Difference]: With dead ends: 1925 [2020-10-23 18:34:59,659 INFO L226 Difference]: Without dead ends: 1288 [2020-10-23 18:34:59,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:34:59,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2020-10-23 18:34:59,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1256. [2020-10-23 18:34:59,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1256 states. [2020-10-23 18:34:59,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1691 transitions. [2020-10-23 18:34:59,772 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1691 transitions. Word has length 125 [2020-10-23 18:34:59,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:34:59,773 INFO L481 AbstractCegarLoop]: Abstraction has 1256 states and 1691 transitions. [2020-10-23 18:34:59,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 18:34:59,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1691 transitions. [2020-10-23 18:34:59,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-23 18:34:59,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:34:59,782 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:34:59,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 18:34:59,783 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:34:59,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:34:59,784 INFO L82 PathProgramCache]: Analyzing trace with hash -289957011, now seen corresponding path program 1 times [2020-10-23 18:34:59,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:34:59,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862090919] [2020-10-23 18:34:59,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:34:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:59,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:34:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:59,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:34:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:59,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 18:34:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:59,995 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:34:59,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862090919] [2020-10-23 18:34:59,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201734602] [2020-10-23 18:34:59,996 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 [2020-10-23 18:35:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:00,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-23 18:35:00,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:35:00,328 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-23 18:35:00,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:35:00,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-10-23 18:35:00,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87905165] [2020-10-23 18:35:00,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:35:00,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:35:00,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:35:00,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:35:00,337 INFO L87 Difference]: Start difference. First operand 1256 states and 1691 transitions. Second operand 5 states. [2020-10-23 18:35:01,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:35:01,767 INFO L93 Difference]: Finished difference Result 3746 states and 5150 transitions. [2020-10-23 18:35:01,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 18:35:01,768 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 134 [2020-10-23 18:35:01,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:35:01,785 INFO L225 Difference]: With dead ends: 3746 [2020-10-23 18:35:01,785 INFO L226 Difference]: Without dead ends: 2496 [2020-10-23 18:35:01,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:35:01,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-10-23 18:35:01,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2456. [2020-10-23 18:35:01,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2456 states. [2020-10-23 18:35:01,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2456 states to 2456 states and 3039 transitions. [2020-10-23 18:35:01,915 INFO L78 Accepts]: Start accepts. Automaton has 2456 states and 3039 transitions. Word has length 134 [2020-10-23 18:35:01,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:35:01,915 INFO L481 AbstractCegarLoop]: Abstraction has 2456 states and 3039 transitions. [2020-10-23 18:35:01,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:35:01,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2456 states and 3039 transitions. [2020-10-23 18:35:01,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-23 18:35:01,928 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:35:01,928 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:35:02,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:35:02,143 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:35:02,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:35:02,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1876019432, now seen corresponding path program 1 times [2020-10-23 18:35:02,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:35:02,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984275489] [2020-10-23 18:35:02,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:35:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:02,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:35:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:02,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:35:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:02,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:35:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:02,499 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:35:02,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984275489] [2020-10-23 18:35:02,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899041660] [2020-10-23 18:35:02,501 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 [2020-10-23 18:35:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:02,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:35:02,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:35:02,743 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:35:02,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:35:02,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-10-23 18:35:02,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724629995] [2020-10-23 18:35:02,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:35:02,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:35:02,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:35:02,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:35:02,747 INFO L87 Difference]: Start difference. First operand 2456 states and 3039 transitions. Second operand 3 states. [2020-10-23 18:35:03,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:35:03,543 INFO L93 Difference]: Finished difference Result 5932 states and 7628 transitions. [2020-10-23 18:35:03,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:35:03,543 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-10-23 18:35:03,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:35:03,570 INFO L225 Difference]: With dead ends: 5932 [2020-10-23 18:35:03,570 INFO L226 Difference]: Without dead ends: 3482 [2020-10-23 18:35:03,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:35:03,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3482 states. [2020-10-23 18:35:03,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3482 to 3478. [2020-10-23 18:35:03,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3478 states. [2020-10-23 18:35:03,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3478 states to 3478 states and 4372 transitions. [2020-10-23 18:35:03,775 INFO L78 Accepts]: Start accepts. Automaton has 3478 states and 4372 transitions. Word has length 135 [2020-10-23 18:35:03,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:35:03,777 INFO L481 AbstractCegarLoop]: Abstraction has 3478 states and 4372 transitions. [2020-10-23 18:35:03,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:35:03,778 INFO L276 IsEmpty]: Start isEmpty. Operand 3478 states and 4372 transitions. [2020-10-23 18:35:03,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-23 18:35:03,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:35:03,797 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:35:04,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:35:04,011 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:35:04,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:35:04,012 INFO L82 PathProgramCache]: Analyzing trace with hash 440168001, now seen corresponding path program 1 times [2020-10-23 18:35:04,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:35:04,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639915340] [2020-10-23 18:35:04,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:35:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:04,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:35:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:04,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:35:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:04,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:35:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:04,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-23 18:35:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:04,290 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 34 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-23 18:35:04,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639915340] [2020-10-23 18:35:04,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780404489] [2020-10-23 18:35:04,291 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 [2020-10-23 18:35:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:04,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:35:04,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:35:04,542 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:35:04,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:35:04,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 12 [2020-10-23 18:35:04,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714087680] [2020-10-23 18:35:04,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-23 18:35:04,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:35:04,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-23 18:35:04,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:35:04,547 INFO L87 Difference]: Start difference. First operand 3478 states and 4372 transitions. Second operand 12 states. [2020-10-23 18:35:04,779 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-10-23 18:35:06,061 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-10-23 18:35:09,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:35:09,792 INFO L93 Difference]: Finished difference Result 8053 states and 10252 transitions. [2020-10-23 18:35:09,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-23 18:35:09,795 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 144 [2020-10-23 18:35:09,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:35:09,820 INFO L225 Difference]: With dead ends: 8053 [2020-10-23 18:35:09,820 INFO L226 Difference]: Without dead ends: 4581 [2020-10-23 18:35:09,832 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=195, Invalid=675, Unknown=0, NotChecked=0, Total=870 [2020-10-23 18:35:09,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4581 states. [2020-10-23 18:35:09,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4581 to 4105. [2020-10-23 18:35:09,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4105 states. [2020-10-23 18:35:09,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4105 states to 4105 states and 4666 transitions. [2020-10-23 18:35:09,987 INFO L78 Accepts]: Start accepts. Automaton has 4105 states and 4666 transitions. Word has length 144 [2020-10-23 18:35:09,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:35:09,988 INFO L481 AbstractCegarLoop]: Abstraction has 4105 states and 4666 transitions. [2020-10-23 18:35:09,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-23 18:35:09,988 INFO L276 IsEmpty]: Start isEmpty. Operand 4105 states and 4666 transitions. [2020-10-23 18:35:09,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 18:35:09,996 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:35:09,996 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:35:10,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:35:10,209 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:35:10,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:35:10,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1707384331, now seen corresponding path program 1 times [2020-10-23 18:35:10,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:35:10,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852994968] [2020-10-23 18:35:10,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:35:10,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:10,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:35:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:10,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:35:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:10,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:35:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:10,692 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-23 18:35:10,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852994968] [2020-10-23 18:35:10,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332438135] [2020-10-23 18:35:10,693 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 [2020-10-23 18:35:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:10,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:35:10,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:35:10,879 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-23 18:35:10,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:35:10,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-10-23 18:35:10,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709834949] [2020-10-23 18:35:10,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:35:10,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:35:10,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:35:10,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:35:10,882 INFO L87 Difference]: Start difference. First operand 4105 states and 4666 transitions. Second operand 3 states. [2020-10-23 18:35:11,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:35:11,604 INFO L93 Difference]: Finished difference Result 8204 states and 9326 transitions. [2020-10-23 18:35:11,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:35:11,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2020-10-23 18:35:11,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:35:11,626 INFO L225 Difference]: With dead ends: 8204 [2020-10-23 18:35:11,626 INFO L226 Difference]: Without dead ends: 4105 [2020-10-23 18:35:11,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:35:11,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4105 states. [2020-10-23 18:35:11,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4105 to 3817. [2020-10-23 18:35:11,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3817 states. [2020-10-23 18:35:11,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3817 states to 3817 states and 4133 transitions. [2020-10-23 18:35:11,762 INFO L78 Accepts]: Start accepts. Automaton has 3817 states and 4133 transitions. Word has length 149 [2020-10-23 18:35:11,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:35:11,762 INFO L481 AbstractCegarLoop]: Abstraction has 3817 states and 4133 transitions. [2020-10-23 18:35:11,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:35:11,763 INFO L276 IsEmpty]: Start isEmpty. Operand 3817 states and 4133 transitions. [2020-10-23 18:35:11,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 18:35:11,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:35:11,772 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:35:11,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:35:11,987 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:35:11,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:35:11,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1834086023, now seen corresponding path program 1 times [2020-10-23 18:35:11,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:35:11,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041050940] [2020-10-23 18:35:11,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:35:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:12,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:35:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:12,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:35:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:12,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-23 18:35:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:12,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-23 18:35:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:12,221 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 54 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-23 18:35:12,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041050940] [2020-10-23 18:35:12,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125201180] [2020-10-23 18:35:12,222 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 [2020-10-23 18:35:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:12,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:35:12,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:35:12,423 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-23 18:35:12,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:35:12,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2020-10-23 18:35:12,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014308849] [2020-10-23 18:35:12,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:35:12,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:35:12,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:35:12,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:35:12,426 INFO L87 Difference]: Start difference. First operand 3817 states and 4133 transitions. Second operand 10 states. [2020-10-23 18:35:14,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:35:14,437 INFO L93 Difference]: Finished difference Result 7962 states and 8648 transitions. [2020-10-23 18:35:14,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:35:14,438 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-10-23 18:35:14,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:35:14,458 INFO L225 Difference]: With dead ends: 7962 [2020-10-23 18:35:14,458 INFO L226 Difference]: Without dead ends: 3534 [2020-10-23 18:35:14,470 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-10-23 18:35:14,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3534 states. [2020-10-23 18:35:14,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3534 to 3362. [2020-10-23 18:35:14,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3362 states. [2020-10-23 18:35:14,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3362 states to 3362 states and 3577 transitions. [2020-10-23 18:35:14,605 INFO L78 Accepts]: Start accepts. Automaton has 3362 states and 3577 transitions. Word has length 167 [2020-10-23 18:35:14,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:35:14,605 INFO L481 AbstractCegarLoop]: Abstraction has 3362 states and 3577 transitions. [2020-10-23 18:35:14,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:35:14,606 INFO L276 IsEmpty]: Start isEmpty. Operand 3362 states and 3577 transitions. [2020-10-23 18:35:14,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-23 18:35:14,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:35:14,615 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:35:14,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:35:14,829 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:35:14,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:35:14,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1688469641, now seen corresponding path program 1 times [2020-10-23 18:35:14,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:35:14,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546746008] [2020-10-23 18:35:14,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:35:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:14,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:35:14,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:14,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:35:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:14,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:35:15,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:15,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-23 18:35:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:15,082 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 66 proven. 12 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-23 18:35:15,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546746008] [2020-10-23 18:35:15,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803826202] [2020-10-23 18:35:15,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:35:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:15,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:35:15,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:35:15,286 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-23 18:35:15,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:35:15,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:35:15,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958172277] [2020-10-23 18:35:15,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:35:15,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:35:15,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:35:15,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:35:15,289 INFO L87 Difference]: Start difference. First operand 3362 states and 3577 transitions. Second operand 10 states. [2020-10-23 18:35:15,608 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-10-23 18:35:16,392 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-10-23 18:35:17,164 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-10-23 18:35:20,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:35:20,136 INFO L93 Difference]: Finished difference Result 8033 states and 8581 transitions. [2020-10-23 18:35:20,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 18:35:20,136 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 175 [2020-10-23 18:35:20,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:35:20,155 INFO L225 Difference]: With dead ends: 8033 [2020-10-23 18:35:20,155 INFO L226 Difference]: Without dead ends: 3460 [2020-10-23 18:35:20,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=137, Invalid=463, Unknown=0, NotChecked=0, Total=600 [2020-10-23 18:35:20,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3460 states. [2020-10-23 18:35:20,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3460 to 3157. [2020-10-23 18:35:20,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3157 states. [2020-10-23 18:35:20,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3157 states to 3157 states and 3276 transitions. [2020-10-23 18:35:20,258 INFO L78 Accepts]: Start accepts. Automaton has 3157 states and 3276 transitions. Word has length 175 [2020-10-23 18:35:20,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:35:20,258 INFO L481 AbstractCegarLoop]: Abstraction has 3157 states and 3276 transitions. [2020-10-23 18:35:20,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:35:20,258 INFO L276 IsEmpty]: Start isEmpty. Operand 3157 states and 3276 transitions. [2020-10-23 18:35:20,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-10-23 18:35:20,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:35:20,270 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:35:20,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:35:20,485 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:35:20,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:35:20,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1465382408, now seen corresponding path program 1 times [2020-10-23 18:35:20,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:35:20,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163052351] [2020-10-23 18:35:20,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:35:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:20,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:35:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:20,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:35:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:20,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:35:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:20,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-23 18:35:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:20,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 18:35:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:21,031 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 246 proven. 50 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-23 18:35:21,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163052351] [2020-10-23 18:35:21,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000366839] [2020-10-23 18:35:21,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:35:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:21,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:35:21,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:35:21,352 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 309 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-23 18:35:21,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:35:21,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-10-23 18:35:21,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802589363] [2020-10-23 18:35:21,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 18:35:21,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:35:21,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 18:35:21,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:35:21,359 INFO L87 Difference]: Start difference. First operand 3157 states and 3276 transitions. Second operand 11 states. [2020-10-23 18:35:22,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:35:22,310 INFO L93 Difference]: Finished difference Result 4958 states and 5150 transitions. [2020-10-23 18:35:22,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 18:35:22,311 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 316 [2020-10-23 18:35:22,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:35:22,311 INFO L225 Difference]: With dead ends: 4958 [2020-10-23 18:35:22,312 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:35:22,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-23 18:35:22,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:35:22,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:35:22,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:35:22,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:35:22,324 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 316 [2020-10-23 18:35:22,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:35:22,324 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:35:22,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 18:35:22,324 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:35:22,324 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:35:22,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-23 18:35:22,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:35:23,269 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 154 [2020-10-23 18:35:23,433 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 154 [2020-10-23 18:35:23,579 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 31 [2020-10-23 18:35:25,978 WARN L193 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 203 DAG size of output: 92 [2020-10-23 18:35:26,105 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2020-10-23 18:35:26,789 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 56 [2020-10-23 18:35:27,546 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 55 [2020-10-23 18:35:28,314 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 55 [2020-10-23 18:35:28,321 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-23 18:35:28,322 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-23 18:35:28,322 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-23 18:35:28,322 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-23 18:35:28,322 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:35:28,323 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |old(#NULL.base)| |#NULL.base|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~y~0 |old(~y~0)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= |old(#t~string6.offset)| |#t~string6.offset|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |old(#t~string7.base)| |#t~string7.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|)) [2020-10-23 18:35:28,323 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:35:28,323 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-23 18:35:28,323 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-23 18:35:28,323 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-23 18:35:28,323 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-23 18:35:28,323 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-23 18:35:28,324 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-23 18:35:28,324 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-23 18:35:28,324 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-23 18:35:28,324 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-23 18:35:28,324 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-23 18:35:28,324 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-23 18:35:28,324 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-23 18:35:28,324 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-23 18:35:28,325 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-23 18:35:28,325 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-23 18:35:28,325 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,325 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,325 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,325 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,325 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,326 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-23 18:35:28,326 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-23 18:35:28,326 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-23 18:35:28,326 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-23 18:35:28,326 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-23 18:35:28,326 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-23 18:35:28,326 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-23 18:35:28,326 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-23 18:35:28,326 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-23 18:35:28,327 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-23 18:35:28,327 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-23 18:35:28,327 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-23 18:35:28,327 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-23 18:35:28,327 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,327 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,327 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,327 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,328 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-23 18:35:28,328 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,328 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-23 18:35:28,328 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-23 18:35:28,328 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-23 18:35:28,328 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-23 18:35:28,328 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-23 18:35:28,328 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-23 18:35:28,329 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-23 18:35:28,329 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-23 18:35:28,329 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-23 18:35:28,329 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-23 18:35:28,329 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-23 18:35:28,329 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-23 18:35:28,329 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-23 18:35:28,329 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-23 18:35:28,329 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-23 18:35:28,330 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,330 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,330 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,330 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,330 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,330 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-23 18:35:28,330 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-23 18:35:28,331 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-23 18:35:28,331 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-23 18:35:28,331 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-23 18:35:28,331 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-23 18:35:28,331 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-23 18:35:28,331 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-23 18:35:28,331 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-23 18:35:28,331 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-23 18:35:28,331 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-23 18:35:28,332 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,332 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,332 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,332 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,332 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,332 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-23 18:35:28,332 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-23 18:35:28,332 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-23 18:35:28,332 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-23 18:35:28,333 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-23 18:35:28,333 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-23 18:35:28,333 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-23 18:35:28,333 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-23 18:35:28,333 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-23 18:35:28,333 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-23 18:35:28,333 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-23 18:35:28,333 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-23 18:35:28,334 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-23 18:35:28,334 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,334 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,334 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,334 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,334 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,334 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-23 18:35:28,334 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-23 18:35:28,335 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-23 18:35:28,335 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-23 18:35:28,335 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-23 18:35:28,335 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-23 18:35:28,335 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-23 18:35:28,335 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-23 18:35:28,335 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-23 18:35:28,335 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,336 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,336 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-23 18:35:28,336 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-23 18:35:28,336 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-23 18:35:28,336 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-23 18:35:28,336 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-23 18:35:28,336 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-23 18:35:28,336 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-23 18:35:28,337 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,337 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,337 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,337 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,337 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-23 18:35:28,337 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,337 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-23 18:35:28,337 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,337 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-23 18:35:28,338 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-23 18:35:28,338 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-23 18:35:28,338 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-23 18:35:28,338 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-23 18:35:28,338 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-23 18:35:28,338 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-23 18:35:28,338 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-23 18:35:28,338 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-23 18:35:28,338 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-23 18:35:28,339 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-23 18:35:28,339 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-23 18:35:28,339 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-23 18:35:28,339 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-23 18:35:28,339 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,339 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,339 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,339 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,339 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,340 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,340 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-23 18:35:28,340 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-23 18:35:28,340 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-23 18:35:28,340 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-23 18:35:28,340 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-23 18:35:28,340 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-23 18:35:28,340 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-23 18:35:28,341 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-23 18:35:28,341 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-23 18:35:28,341 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-23 18:35:28,341 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-23 18:35:28,341 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,341 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,341 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,342 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,342 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,342 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,342 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-23 18:35:28,342 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-23 18:35:28,342 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-23 18:35:28,342 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-23 18:35:28,342 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-23 18:35:28,342 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-23 18:35:28,343 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-23 18:35:28,343 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse6 (= ~a17~0 |old(~a17~0)|)) (.cse5 (= ~a28~0 |old(~a28~0)|)) (.cse7 (= ~a11~0 |old(~a11~0)|)) (.cse14 (= ~a19~0 1)) (.cse23 (= ~a17~0 8)) (.cse8 (= ~a25~0 1))) (let ((.cse11 (not (<= 8 |old(~a17~0)|))) (.cse19 (and .cse5 .cse7 .cse14 .cse23 .cse8)) (.cse0 (not (= |old(~a25~0)| 1))) (.cse4 (and .cse5 .cse6 .cse7 .cse14 .cse8)) (.cse1 (not (<= |old(~a28~0)| 7))) (.cse17 (= ~a25~0 ~a11~0)) (.cse3 (not (= 0 |old(~a11~0)|))) (.cse18 (not (= |old(~a11~0)| |old(~a25~0)|))) (.cse10 (not (<= |old(~a17~0)| 7))) (.cse9 (= ~a19~0 |old(~a19~0)|)) (.cse20 (not (= 8 |old(~a17~0)|))) (.cse12 (not (<= |old(~a28~0)| 9))) (.cse22 (not (<= |old(~a19~0)| 0))) (.cse24 (not (<= |old(~a28~0)| 10))) (.cse2 (not (= |old(~a19~0)| 1))) (.cse26 (= 9 |old(~a28~0)|)) (.cse25 (not (= ~a28~0 9))) (.cse13 (<= 9 ~a28~0)) (.cse21 (= ~a25~0 |old(~a25~0)|)) (.cse15 (<= ~a28~0 |old(~a28~0)|)) (.cse16 (not (<= 9 |old(~a28~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 (and .cse5 .cse6 .cse7 .cse8 .cse9) .cse2 .cse10) (or .cse0 .cse2 .cse11 .cse3 .cse12 (and .cse6 .cse7 .cse13 .cse14 .cse8 .cse15) .cse16) (or .cse0 .cse2 .cse11 .cse12 (and .cse17 .cse6 .cse13 .cse14 .cse8 .cse15) (= |old(~a17~0)| |old(~a28~0)|) .cse16 .cse18) (or .cse0 .cse2 .cse3 .cse19 .cse20) (or (and .cse17 .cse6 .cse13 .cse21 .cse15 .cse9) .cse10 .cse12 .cse22 .cse16 .cse18) (or .cse2 .cse20 .cse12 (and .cse7 .cse13 .cse14 .cse21 .cse23 .cse15) .cse16) (or .cse0 .cse1 .cse2 .cse19 .cse20) (or .cse0 .cse24 (and .cse25 .cse7 .cse13 .cse23 .cse8 .cse15 .cse9) .cse3 .cse26 .cse20 .cse22 .cse16) (or .cse0 .cse2 .cse3 .cse26 .cse10 .cse4 .cse16) (or .cse1 .cse2 (and .cse5 .cse17 .cse14 .cse21 .cse23) .cse3 .cse20 .cse18) (or (and .cse25 .cse6 .cse7 .cse13 .cse21 .cse15 .cse9) .cse24 .cse26 .cse10 .cse22 .cse16) (or (and .cse5 .cse7 .cse21 .cse23 .cse9) .cse20 .cse12 .cse22) (or .cse24 .cse2 .cse26 (and .cse25 .cse6 .cse7 .cse13 .cse14 .cse21 .cse15) .cse16)))) [2020-10-23 18:35:28,343 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-23 18:35:28,344 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-23 18:35:28,344 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-23 18:35:28,344 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-23 18:35:28,344 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-23 18:35:28,344 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-23 18:35:28,344 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-23 18:35:28,344 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,344 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,347 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,347 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,347 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,348 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,348 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-23 18:35:28,348 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-23 18:35:28,348 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-23 18:35:28,348 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-23 18:35:28,348 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-23 18:35:28,348 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-23 18:35:28,348 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-23 18:35:28,348 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-23 18:35:28,349 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-23 18:35:28,349 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-23 18:35:28,349 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-23 18:35:28,349 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-23 18:35:28,349 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-23 18:35:28,349 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,349 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,349 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,349 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,350 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,350 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,350 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-23 18:35:28,350 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-23 18:35:28,350 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-23 18:35:28,350 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-23 18:35:28,350 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-23 18:35:28,351 INFO L270 CegarLoopResult]: At program point L495(line 495) the Hoare annotation is: (let ((.cse6 (not (= 8 |old(~a17~0)|))) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse2 (= 9 |old(~a28~0)|)) (.cse13 (not (<= 8 |old(~a17~0)|))) (.cse9 (= |old(~a17~0)| |old(~a28~0)|)) (.cse7 (not (<= |old(~a17~0)| 7))) (.cse8 (not (<= |old(~a28~0)| 9))) (.cse12 (not (<= |old(~a19~0)| 0))) (.cse3 (not (<= 9 |old(~a28~0)|))) (.cse10 (not (= |old(~a11~0)| |old(~a25~0)|))) (.cse4 (not (= |old(~a25~0)| 1))) (.cse11 (not (<= |old(~a28~0)| 7))) (.cse1 (not (= |old(~a19~0)| 1))) (.cse5 (not (= 0 |old(~a11~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse5 .cse6) (or .cse4 .cse1 .cse5 .cse2 .cse7 .cse3) (or .cse1 .cse5 .cse6 .cse8 .cse9 .cse10) (or .cse4 .cse11 .cse1 .cse6) (or .cse6 .cse8 .cse12) (or .cse1 .cse6 .cse8 .cse3) (or .cse4 .cse11 .cse1 .cse7) (or .cse4 .cse0 .cse5 .cse6 .cse12) (or .cse0 .cse2 .cse7 .cse12 .cse3) (or .cse4 .cse1 .cse13 .cse5 .cse8 .cse3) (or .cse4 .cse1 .cse13 .cse8 .cse9 .cse3 .cse10) (or .cse7 .cse8 .cse12 .cse3 .cse10) (or .cse4 .cse11 .cse1 .cse5))) [2020-10-23 18:35:28,351 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-23 18:35:28,351 INFO L274 CegarLoopResult]: For program point L495-1(line 495) no Hoare annotation was computed. [2020-10-23 18:35:28,351 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-23 18:35:28,351 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-23 18:35:28,351 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-23 18:35:28,351 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-23 18:35:28,351 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-23 18:35:28,352 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-23 18:35:28,352 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-23 18:35:28,352 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-23 18:35:28,352 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-23 18:35:28,352 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,352 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,352 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,352 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,352 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:28,352 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-23 18:35:28,353 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-23 18:35:28,353 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-23 18:35:28,353 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-23 18:35:28,353 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:35:28,353 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a17~0 8) (= ~a11~0 0) (<= ~a28~0 7)) [2020-10-23 18:35:28,353 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:35:28,353 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:35:28,354 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse10 (<= ~a28~0 7)) (.cse1 (<= ~a19~0 0)) (.cse4 (<= ~a17~0 7)) (.cse7 (= ~a25~0 1)) (.cse8 (= ~a11~0 0)) (.cse9 (= ~a17~0 8)) (.cse5 (not (= ~a28~0 9))) (.cse0 (= 7 |old(~a28~0)|)) (.cse2 (<= 9 ~a28~0)) (.cse6 (= ~a19~0 1)) (.cse3 (<= ~a28~0 10))) (or (and (= ~a25~0 ~a11~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse2 .cse6 .cse7 .cse8 .cse4) (not (= |old(~a19~0)| 1)) (and .cse0 .cse6 .cse9 .cse7 .cse10) (not (= 8 |old(~a17~0)|)) (and .cse0 .cse6 .cse7 .cse10 .cse4) (and .cse0 .cse1 .cse9 (<= ~a28~0 9)) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse1 .cse9 .cse7 .cse8 .cse3) (and .cse5 .cse0 .cse1 .cse2 .cse4 .cse3) (not (= 0 |old(~a11~0)|)) (and (= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) .cse6 (= ~a25~0 |old(~a25~0)|) .cse9) (and .cse0 .cse6 .cse9 .cse7 .cse8) (and .cse0 .cse2 .cse6 .cse9 .cse3) (not (= |old(~a11~0)| |old(~a25~0)|)) (and .cse5 .cse0 .cse2 .cse6 .cse3))) [2020-10-23 18:35:28,354 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (and (= ~a28~0 |old(~a28~0)|) (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8)) (not (= 0 |old(~a11~0)|)) (not (= 8 |old(~a17~0)|)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-23 18:35:28,354 INFO L274 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-10-23 18:35:28,354 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-10-23 18:35:28,355 INFO L270 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse10 (<= ~a28~0 7)) (.cse1 (<= ~a19~0 0)) (.cse4 (<= ~a17~0 7)) (.cse7 (= ~a25~0 1)) (.cse8 (= ~a11~0 0)) (.cse9 (= ~a17~0 8)) (.cse5 (not (= ~a28~0 9))) (.cse0 (= 7 |old(~a28~0)|)) (.cse2 (<= 9 ~a28~0)) (.cse6 (= ~a19~0 1)) (.cse3 (<= ~a28~0 10))) (or (and (= ~a25~0 ~a11~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse2 .cse6 .cse7 .cse8 .cse4) (not (= |old(~a19~0)| 1)) (and .cse0 .cse6 .cse9 .cse7 .cse10) (not (= 8 |old(~a17~0)|)) (and .cse0 .cse6 .cse7 .cse10 .cse4) (and .cse0 .cse1 .cse9 (<= ~a28~0 9)) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse1 .cse9 .cse7 .cse8 .cse3) (and .cse5 .cse0 .cse1 .cse2 .cse4 .cse3) (not (= 0 |old(~a11~0)|)) (and (= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) .cse6 (= ~a25~0 |old(~a25~0)|) .cse9) (and .cse0 .cse6 .cse9 .cse7 .cse8) (and .cse0 .cse2 .cse6 .cse9 .cse3) (not (= |old(~a11~0)| |old(~a25~0)|)) (and .cse5 .cse0 .cse2 .cse6 .cse3))) [2020-10-23 18:35:28,355 INFO L274 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-10-23 18:35:28,355 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-23 18:35:28,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:35:28 BoogieIcfgContainer [2020-10-23 18:35:28,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:35:28,414 INFO L168 Benchmark]: Toolchain (without parser) took 39750.55 ms. Allocated memory was 151.0 MB in the beginning and 556.8 MB in the end (delta: 405.8 MB). Free memory was 124.1 MB in the beginning and 425.7 MB in the end (delta: -301.7 MB). Peak memory consumption was 330.3 MB. Max. memory is 8.0 GB. [2020-10-23 18:35:28,415 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory was 121.9 MB in the beginning and 121.8 MB in the end (delta: 102.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:35:28,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 876.34 ms. Allocated memory is still 151.0 MB. Free memory was 123.2 MB in the beginning and 97.6 MB in the end (delta: 25.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:35:28,420 INFO L168 Benchmark]: Boogie Preprocessor took 177.12 ms. Allocated memory is still 151.0 MB. Free memory was 97.4 MB in the beginning and 129.0 MB in the end (delta: -31.7 MB). Peak memory consumption was 6.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:35:28,420 INFO L168 Benchmark]: RCFGBuilder took 1663.98 ms. Allocated memory was 151.0 MB in the beginning and 184.5 MB in the end (delta: 33.6 MB). Free memory was 129.0 MB in the beginning and 140.4 MB in the end (delta: -11.4 MB). Peak memory consumption was 84.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:35:28,421 INFO L168 Benchmark]: TraceAbstraction took 37014.78 ms. Allocated memory was 184.5 MB in the beginning and 556.8 MB in the end (delta: 372.2 MB). Free memory was 139.9 MB in the beginning and 425.7 MB in the end (delta: -285.8 MB). Peak memory consumption was 312.4 MB. Max. memory is 8.0 GB. [2020-10-23 18:35:28,432 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory was 121.9 MB in the beginning and 121.8 MB in the end (delta: 102.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 876.34 ms. Allocated memory is still 151.0 MB. Free memory was 123.2 MB in the beginning and 97.6 MB in the end (delta: 25.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 177.12 ms. Allocated memory is still 151.0 MB. Free memory was 97.4 MB in the beginning and 129.0 MB in the end (delta: -31.7 MB). Peak memory consumption was 6.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1663.98 ms. Allocated memory was 151.0 MB in the beginning and 184.5 MB in the end (delta: 33.6 MB). Free memory was 129.0 MB in the beginning and 140.4 MB in the end (delta: -11.4 MB). Peak memory consumption was 84.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 37014.78 ms. Allocated memory was 184.5 MB in the beginning and 556.8 MB in the end (delta: 372.2 MB). Free memory was 139.9 MB in the beginning and 425.7 MB in the end (delta: -285.8 MB). Peak memory consumption was 312.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 608]: Loop Invariant Derived loop invariant: (((((((((((((((((((a25 == a11 && 7 == \old(a28)) && a19 <= 0) && 9 <= a28) && a28 <= 10) && a17 <= 7) || ((((((!(a28 == 9) && 7 == \old(a28)) && 9 <= a28) && a19 == 1) && a25 == 1) && a11 == 0) && a17 <= 7)) || !(\old(a19) == 1)) || ((((7 == \old(a28) && a19 == 1) && a17 == 8) && a25 == 1) && a28 <= 7)) || !(8 == \old(a17))) || ((((7 == \old(a28) && a19 == 1) && a25 == 1) && a28 <= 7) && a17 <= 7)) || (((7 == \old(a28) && a19 <= 0) && a17 == 8) && a28 <= 9)) || !(\old(a28) <= 7)) || (((((7 == \old(a28) && a19 <= 0) && a17 == 8) && a25 == 1) && a11 == 0) && a28 <= 10)) || (((((!(a28 == 9) && 7 == \old(a28)) && a19 <= 0) && 9 <= a28) && a17 <= 7) && a28 <= 10)) || !(0 == \old(a11))) || ((((a28 == \old(a28) && a11 == \old(a11)) && a19 == 1) && a25 == \old(a25)) && a17 == 8)) || ((((7 == \old(a28) && a19 == 1) && a17 == 8) && a25 == 1) && a11 == 0)) || ((((7 == \old(a28) && 9 <= a28) && a19 == 1) && a17 == 8) && a28 <= 10)) || !(\old(a11) == \old(a25))) || ((((!(a28 == 9) && 7 == \old(a28)) && 9 <= a28) && a19 == 1) && a28 <= 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 31.0s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 22.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 679 SDtfs, 6441 SDslu, 621 SDs, 0 SdLazy, 11424 SolverSat, 1701 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1416 GetRequests, 1297 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4105occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 1335 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 362 PreInvPairs, 416 NumberOfFragments, 1378 HoareAnnotationTreeSize, 362 FomulaSimplifications, 29668 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 9 FomulaSimplificationsInter, 5720 FormulaSimplificationTreeSizeReductionInter, 4.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 2801 NumberOfCodeBlocks, 2801 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2784 ConstructedInterpolants, 0 QuantifiedInterpolants, 1211191 SizeOfPredicates, 7 NumberOfNonLiveVariables, 3693 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 17 InterpolantComputations, 6 PerfectInterpolantSequences, 1288/1387 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...