/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/list-ext3-properties/sll_of_sll_nondet_append-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 19:40:22,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 19:40:22,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 19:40:22,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 19:40:22,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 19:40:22,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 19:40:22,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 19:40:22,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 19:40:22,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 19:40:22,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 19:40:22,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 19:40:22,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 19:40:22,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 19:40:22,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 19:40:22,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 19:40:22,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 19:40:22,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 19:40:22,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 19:40:22,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 19:40:23,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 19:40:23,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 19:40:23,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 19:40:23,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 19:40:23,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 19:40:23,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 19:40:23,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 19:40:23,063 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 19:40:23,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 19:40:23,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 19:40:23,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 19:40:23,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 19:40:23,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 19:40:23,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 19:40:23,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 19:40:23,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 19:40:23,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 19:40:23,073 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-12-22 19:40:23,113 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 19:40:23,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 19:40:23,115 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 19:40:23,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 19:40:23,115 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 19:40:23,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 19:40:23,116 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-22 19:40:23,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 19:40:23,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 19:40:23,117 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-22 19:40:23,117 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-22 19:40:23,117 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-22 19:40:23,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 19:40:23,117 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-22 19:40:23,117 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 19:40:23,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 19:40:23,118 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 19:40:23,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 19:40:23,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 19:40:23,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 19:40:23,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 19:40:23,119 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 19:40:23,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 19:40:23,119 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 19:40:23,120 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 19:40:23,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 19:40:23,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 19:40:23,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 19:40:23,574 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 19:40:23,575 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 19:40:23,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext3-properties/sll_of_sll_nondet_append-1.i [2020-12-22 19:40:23,660 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/886246919/26c66a1ae5e1404682641b14cc5c1718/FLAG45e23f378 [2020-12-22 19:40:24,444 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 19:40:24,448 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/sll_of_sll_nondet_append-1.i [2020-12-22 19:40:24,483 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/886246919/26c66a1ae5e1404682641b14cc5c1718/FLAG45e23f378 [2020-12-22 19:40:24,634 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/886246919/26c66a1ae5e1404682641b14cc5c1718 [2020-12-22 19:40:24,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 19:40:24,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 19:40:24,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 19:40:24,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 19:40:24,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 19:40:24,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:40:24" (1/1) ... [2020-12-22 19:40:24,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f676a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:40:24, skipping insertion in model container [2020-12-22 19:40:24,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:40:24" (1/1) ... [2020-12-22 19:40:24,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 19:40:24,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 19:40:25,070 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/sll_of_sll_nondet_append-1.i[24987,25000] [2020-12-22 19:40:25,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 19:40:25,101 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 19:40:25,221 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/sll_of_sll_nondet_append-1.i[24987,25000] [2020-12-22 19:40:25,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 19:40:25,347 INFO L208 MainTranslator]: Completed translation [2020-12-22 19:40:25,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:40:25 WrapperNode [2020-12-22 19:40:25,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 19:40:25,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 19:40:25,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 19:40:25,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 19:40:25,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:40:25" (1/1) ... [2020-12-22 19:40:25,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:40:25" (1/1) ... [2020-12-22 19:40:25,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 19:40:25,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 19:40:25,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 19:40:25,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 19:40:25,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:40:25" (1/1) ... [2020-12-22 19:40:25,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:40:25" (1/1) ... [2020-12-22 19:40:25,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:40:25" (1/1) ... [2020-12-22 19:40:25,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:40:25" (1/1) ... [2020-12-22 19:40:25,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:40:25" (1/1) ... [2020-12-22 19:40:25,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:40:25" (1/1) ... [2020-12-22 19:40:25,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:40:25" (1/1) ... [2020-12-22 19:40:25,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 19:40:25,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 19:40:25,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 19:40:25,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 19:40:25,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:40:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 19:40:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 19:40:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 19:40:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 19:40:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 19:40:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 19:40:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 19:40:25,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 19:40:25,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 19:40:25,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 19:40:26,503 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 19:40:26,503 INFO L299 CfgBuilder]: Removed 27 assume(true) statements. [2020-12-22 19:40:26,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:40:26 BoogieIcfgContainer [2020-12-22 19:40:26,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 19:40:26,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 19:40:26,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 19:40:26,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 19:40:26,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 07:40:24" (1/3) ... [2020-12-22 19:40:26,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9b27d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:40:26, skipping insertion in model container [2020-12-22 19:40:26,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:40:25" (2/3) ... [2020-12-22 19:40:26,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9b27d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:40:26, skipping insertion in model container [2020-12-22 19:40:26,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:40:26" (3/3) ... [2020-12-22 19:40:26,516 INFO L111 eAbstractionObserver]: Analyzing ICFG sll_of_sll_nondet_append-1.i [2020-12-22 19:40:26,524 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 19:40:26,530 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 42 error locations. [2020-12-22 19:40:26,553 INFO L253 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2020-12-22 19:40:26,580 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 19:40:26,581 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-22 19:40:26,581 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 19:40:26,581 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 19:40:26,581 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 19:40:26,582 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 19:40:26,582 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 19:40:26,582 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 19:40:26,603 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2020-12-22 19:40:26,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-22 19:40:26,609 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:26,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-22 19:40:26,611 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:26,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:26,619 INFO L82 PathProgramCache]: Analyzing trace with hash 929126, now seen corresponding path program 1 times [2020-12-22 19:40:26,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:26,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411927800] [2020-12-22 19:40:26,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:26,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:40:26,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411927800] [2020-12-22 19:40:26,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:40:26,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:40:26,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030813584] [2020-12-22 19:40:26,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 19:40:26,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:26,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 19:40:26,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 19:40:26,841 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 2 states. [2020-12-22 19:40:26,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:26,865 INFO L93 Difference]: Finished difference Result 114 states and 129 transitions. [2020-12-22 19:40:26,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 19:40:26,867 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-12-22 19:40:26,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:26,880 INFO L225 Difference]: With dead ends: 114 [2020-12-22 19:40:26,880 INFO L226 Difference]: Without dead ends: 110 [2020-12-22 19:40:26,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 19:40:26,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-12-22 19:40:26,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-12-22 19:40:26,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-12-22 19:40:26,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 123 transitions. [2020-12-22 19:40:26,936 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 123 transitions. Word has length 4 [2020-12-22 19:40:26,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:26,937 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 123 transitions. [2020-12-22 19:40:26,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 19:40:26,937 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 123 transitions. [2020-12-22 19:40:26,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-22 19:40:26,937 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:26,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-22 19:40:26,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 19:40:26,938 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:26,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:26,940 INFO L82 PathProgramCache]: Analyzing trace with hash 925809, now seen corresponding path program 1 times [2020-12-22 19:40:26,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:26,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875935927] [2020-12-22 19:40:26,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:27,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:40:27,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875935927] [2020-12-22 19:40:27,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:40:27,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:40:27,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522328713] [2020-12-22 19:40:27,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:40:27,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:27,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:40:27,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:40:27,043 INFO L87 Difference]: Start difference. First operand 110 states and 123 transitions. Second operand 3 states. [2020-12-22 19:40:27,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:27,095 INFO L93 Difference]: Finished difference Result 157 states and 175 transitions. [2020-12-22 19:40:27,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:40:27,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-22 19:40:27,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:27,098 INFO L225 Difference]: With dead ends: 157 [2020-12-22 19:40:27,098 INFO L226 Difference]: Without dead ends: 157 [2020-12-22 19:40:27,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:40:27,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-12-22 19:40:27,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 111. [2020-12-22 19:40:27,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-12-22 19:40:27,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 124 transitions. [2020-12-22 19:40:27,114 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 124 transitions. Word has length 4 [2020-12-22 19:40:27,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:27,115 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 124 transitions. [2020-12-22 19:40:27,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:40:27,115 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 124 transitions. [2020-12-22 19:40:27,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 19:40:27,116 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:27,116 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:27,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 19:40:27,116 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:27,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:27,117 INFO L82 PathProgramCache]: Analyzing trace with hash -303455790, now seen corresponding path program 1 times [2020-12-22 19:40:27,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:27,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287166323] [2020-12-22 19:40:27,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:27,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 19:40:27,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287166323] [2020-12-22 19:40:27,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:40:27,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:40:27,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985545363] [2020-12-22 19:40:27,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:40:27,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:27,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:40:27,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:40:27,171 INFO L87 Difference]: Start difference. First operand 111 states and 124 transitions. Second operand 3 states. [2020-12-22 19:40:27,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:27,284 INFO L93 Difference]: Finished difference Result 136 states and 151 transitions. [2020-12-22 19:40:27,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:40:27,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-22 19:40:27,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:27,287 INFO L225 Difference]: With dead ends: 136 [2020-12-22 19:40:27,287 INFO L226 Difference]: Without dead ends: 136 [2020-12-22 19:40:27,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:40:27,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-12-22 19:40:27,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 109. [2020-12-22 19:40:27,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-12-22 19:40:27,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 122 transitions. [2020-12-22 19:40:27,300 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 122 transitions. Word has length 9 [2020-12-22 19:40:27,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:27,300 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 122 transitions. [2020-12-22 19:40:27,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:40:27,300 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 122 transitions. [2020-12-22 19:40:27,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 19:40:27,301 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:27,301 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:27,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 19:40:27,302 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:27,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:27,303 INFO L82 PathProgramCache]: Analyzing trace with hash -303455789, now seen corresponding path program 1 times [2020-12-22 19:40:27,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:27,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739042909] [2020-12-22 19:40:27,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:27,364 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:40:27,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739042909] [2020-12-22 19:40:27,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433782872] [2020-12-22 19:40:27,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:40:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:27,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 19:40:27,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:40:27,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:40:27,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:40:27,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-12-22 19:40:27,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263659860] [2020-12-22 19:40:27,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 19:40:27,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:27,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 19:40:27,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:40:27,553 INFO L87 Difference]: Start difference. First operand 109 states and 122 transitions. Second operand 6 states. [2020-12-22 19:40:27,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:27,624 INFO L93 Difference]: Finished difference Result 203 states and 226 transitions. [2020-12-22 19:40:27,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:40:27,624 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-12-22 19:40:27,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:27,627 INFO L225 Difference]: With dead ends: 203 [2020-12-22 19:40:27,627 INFO L226 Difference]: Without dead ends: 203 [2020-12-22 19:40:27,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:40:27,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-12-22 19:40:27,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 138. [2020-12-22 19:40:27,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-12-22 19:40:27,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 174 transitions. [2020-12-22 19:40:27,643 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 174 transitions. Word has length 9 [2020-12-22 19:40:27,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:27,643 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 174 transitions. [2020-12-22 19:40:27,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 19:40:27,644 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 174 transitions. [2020-12-22 19:40:27,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 19:40:27,644 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:27,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:27,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:40:27,861 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:27,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:27,863 INFO L82 PathProgramCache]: Analyzing trace with hash 418964796, now seen corresponding path program 1 times [2020-12-22 19:40:27,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:27,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998786485] [2020-12-22 19:40:27,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:27,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:40:27,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998786485] [2020-12-22 19:40:27,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:40:27,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:40:27,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998877828] [2020-12-22 19:40:27,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:40:27,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:27,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:40:27,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:40:27,920 INFO L87 Difference]: Start difference. First operand 138 states and 174 transitions. Second operand 3 states. [2020-12-22 19:40:28,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:28,087 INFO L93 Difference]: Finished difference Result 262 states and 332 transitions. [2020-12-22 19:40:28,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:40:28,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-22 19:40:28,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:28,091 INFO L225 Difference]: With dead ends: 262 [2020-12-22 19:40:28,091 INFO L226 Difference]: Without dead ends: 262 [2020-12-22 19:40:28,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:40:28,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-12-22 19:40:28,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 137. [2020-12-22 19:40:28,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-12-22 19:40:28,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 172 transitions. [2020-12-22 19:40:28,109 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 172 transitions. Word has length 11 [2020-12-22 19:40:28,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:28,109 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 172 transitions. [2020-12-22 19:40:28,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:40:28,109 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 172 transitions. [2020-12-22 19:40:28,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 19:40:28,110 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:28,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:28,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 19:40:28,111 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:28,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:28,112 INFO L82 PathProgramCache]: Analyzing trace with hash 418964797, now seen corresponding path program 1 times [2020-12-22 19:40:28,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:28,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778890341] [2020-12-22 19:40:28,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:28,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:40:28,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778890341] [2020-12-22 19:40:28,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:40:28,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:40:28,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054709562] [2020-12-22 19:40:28,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:40:28,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:28,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:40:28,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:40:28,174 INFO L87 Difference]: Start difference. First operand 137 states and 172 transitions. Second operand 3 states. [2020-12-22 19:40:28,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:28,320 INFO L93 Difference]: Finished difference Result 263 states and 331 transitions. [2020-12-22 19:40:28,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:40:28,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-22 19:40:28,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:28,330 INFO L225 Difference]: With dead ends: 263 [2020-12-22 19:40:28,330 INFO L226 Difference]: Without dead ends: 263 [2020-12-22 19:40:28,331 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:40:28,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-12-22 19:40:28,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 136. [2020-12-22 19:40:28,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-12-22 19:40:28,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 170 transitions. [2020-12-22 19:40:28,361 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 170 transitions. Word has length 11 [2020-12-22 19:40:28,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:28,364 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 170 transitions. [2020-12-22 19:40:28,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:40:28,365 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 170 transitions. [2020-12-22 19:40:28,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 19:40:28,365 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:28,366 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:28,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 19:40:28,366 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:28,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:28,372 INFO L82 PathProgramCache]: Analyzing trace with hash 102956164, now seen corresponding path program 1 times [2020-12-22 19:40:28,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:28,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356554282] [2020-12-22 19:40:28,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:28,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:40:28,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356554282] [2020-12-22 19:40:28,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:40:28,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 19:40:28,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139930051] [2020-12-22 19:40:28,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:40:28,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:28,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:40:28,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:40:28,492 INFO L87 Difference]: Start difference. First operand 136 states and 170 transitions. Second operand 5 states. [2020-12-22 19:40:28,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:28,591 INFO L93 Difference]: Finished difference Result 225 states and 255 transitions. [2020-12-22 19:40:28,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 19:40:28,591 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 19:40:28,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:28,593 INFO L225 Difference]: With dead ends: 225 [2020-12-22 19:40:28,593 INFO L226 Difference]: Without dead ends: 225 [2020-12-22 19:40:28,594 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:40:28,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-12-22 19:40:28,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 137. [2020-12-22 19:40:28,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-12-22 19:40:28,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 171 transitions. [2020-12-22 19:40:28,601 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 171 transitions. Word has length 12 [2020-12-22 19:40:28,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:28,602 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 171 transitions. [2020-12-22 19:40:28,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:40:28,602 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 171 transitions. [2020-12-22 19:40:28,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 19:40:28,603 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:28,603 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2020-12-22 19:40:28,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 19:40:28,604 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:28,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:28,605 INFO L82 PathProgramCache]: Analyzing trace with hash 933025042, now seen corresponding path program 2 times [2020-12-22 19:40:28,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:28,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590224469] [2020-12-22 19:40:28,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:28,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:28,649 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-22 19:40:28,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590224469] [2020-12-22 19:40:28,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:40:28,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:40:28,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419971180] [2020-12-22 19:40:28,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:40:28,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:28,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:40:28,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:40:28,652 INFO L87 Difference]: Start difference. First operand 137 states and 171 transitions. Second operand 3 states. [2020-12-22 19:40:28,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:28,741 INFO L93 Difference]: Finished difference Result 202 states and 249 transitions. [2020-12-22 19:40:28,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:40:28,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-12-22 19:40:28,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:28,744 INFO L225 Difference]: With dead ends: 202 [2020-12-22 19:40:28,744 INFO L226 Difference]: Without dead ends: 202 [2020-12-22 19:40:28,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:40:28,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-12-22 19:40:28,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 166. [2020-12-22 19:40:28,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-12-22 19:40:28,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 218 transitions. [2020-12-22 19:40:28,751 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 218 transitions. Word has length 14 [2020-12-22 19:40:28,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:28,752 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 218 transitions. [2020-12-22 19:40:28,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:40:28,752 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 218 transitions. [2020-12-22 19:40:28,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 19:40:28,753 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:28,753 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:28,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 19:40:28,754 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:28,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:28,755 INFO L82 PathProgramCache]: Analyzing trace with hash -277212787, now seen corresponding path program 1 times [2020-12-22 19:40:28,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:28,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83311687] [2020-12-22 19:40:28,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:28,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:40:28,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83311687] [2020-12-22 19:40:28,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045905009] [2020-12-22 19:40:28,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:40:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:28,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-22 19:40:28,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:40:28,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:40:28,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:40:28,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-12-22 19:40:28,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680190826] [2020-12-22 19:40:28,951 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 19:40:28,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:28,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 19:40:28,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:40:28,952 INFO L87 Difference]: Start difference. First operand 166 states and 218 transitions. Second operand 7 states. [2020-12-22 19:40:29,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:29,181 INFO L93 Difference]: Finished difference Result 346 states and 390 transitions. [2020-12-22 19:40:29,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 19:40:29,182 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-12-22 19:40:29,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:29,186 INFO L225 Difference]: With dead ends: 346 [2020-12-22 19:40:29,186 INFO L226 Difference]: Without dead ends: 346 [2020-12-22 19:40:29,187 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-12-22 19:40:29,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-12-22 19:40:29,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 175. [2020-12-22 19:40:29,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-12-22 19:40:29,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 227 transitions. [2020-12-22 19:40:29,197 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 227 transitions. Word has length 16 [2020-12-22 19:40:29,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:29,197 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 227 transitions. [2020-12-22 19:40:29,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 19:40:29,198 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 227 transitions. [2020-12-22 19:40:29,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 19:40:29,199 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:29,199 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:29,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:40:29,415 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:29,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:29,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1002157332, now seen corresponding path program 1 times [2020-12-22 19:40:29,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:29,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201986176] [2020-12-22 19:40:29,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:29,489 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-22 19:40:29,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201986176] [2020-12-22 19:40:29,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:40:29,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 19:40:29,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633896216] [2020-12-22 19:40:29,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:40:29,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:29,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:40:29,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:40:29,494 INFO L87 Difference]: Start difference. First operand 175 states and 227 transitions. Second operand 5 states. [2020-12-22 19:40:29,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:29,609 INFO L93 Difference]: Finished difference Result 200 states and 241 transitions. [2020-12-22 19:40:29,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 19:40:29,610 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-12-22 19:40:29,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:29,612 INFO L225 Difference]: With dead ends: 200 [2020-12-22 19:40:29,612 INFO L226 Difference]: Without dead ends: 200 [2020-12-22 19:40:29,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:40:29,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-12-22 19:40:29,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 162. [2020-12-22 19:40:29,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-12-22 19:40:29,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 201 transitions. [2020-12-22 19:40:29,618 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 201 transitions. Word has length 18 [2020-12-22 19:40:29,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:29,619 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 201 transitions. [2020-12-22 19:40:29,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:40:29,619 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 201 transitions. [2020-12-22 19:40:29,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-22 19:40:29,620 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:29,620 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:29,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 19:40:29,621 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:29,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:29,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1000564196, now seen corresponding path program 1 times [2020-12-22 19:40:29,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:29,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670419336] [2020-12-22 19:40:29,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:29,708 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-22 19:40:29,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670419336] [2020-12-22 19:40:29,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:40:29,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 19:40:29,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093353333] [2020-12-22 19:40:29,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:40:29,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:29,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:40:29,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:40:29,711 INFO L87 Difference]: Start difference. First operand 162 states and 201 transitions. Second operand 5 states. [2020-12-22 19:40:29,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:29,814 INFO L93 Difference]: Finished difference Result 175 states and 214 transitions. [2020-12-22 19:40:29,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 19:40:29,816 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-12-22 19:40:29,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:29,817 INFO L225 Difference]: With dead ends: 175 [2020-12-22 19:40:29,818 INFO L226 Difference]: Without dead ends: 175 [2020-12-22 19:40:29,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:40:29,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-12-22 19:40:29,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 164. [2020-12-22 19:40:29,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-12-22 19:40:29,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 203 transitions. [2020-12-22 19:40:29,827 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 203 transitions. Word has length 20 [2020-12-22 19:40:29,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:29,827 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 203 transitions. [2020-12-22 19:40:29,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:40:29,827 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 203 transitions. [2020-12-22 19:40:29,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-22 19:40:29,830 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:29,831 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:29,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 19:40:29,831 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:29,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:29,832 INFO L82 PathProgramCache]: Analyzing trace with hash 2109569558, now seen corresponding path program 2 times [2020-12-22 19:40:29,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:29,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721236643] [2020-12-22 19:40:29,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:29,960 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:40:29,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721236643] [2020-12-22 19:40:29,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316286912] [2020-12-22 19:40:29,961 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:40:30,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 19:40:30,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:40:30,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-22 19:40:30,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:40:30,109 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:40:30,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:40:30,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-12-22 19:40:30,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620412097] [2020-12-22 19:40:30,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 19:40:30,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:30,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 19:40:30,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:40:30,112 INFO L87 Difference]: Start difference. First operand 164 states and 203 transitions. Second operand 8 states. [2020-12-22 19:40:30,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:30,358 INFO L93 Difference]: Finished difference Result 249 states and 278 transitions. [2020-12-22 19:40:30,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 19:40:30,359 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2020-12-22 19:40:30,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:30,361 INFO L225 Difference]: With dead ends: 249 [2020-12-22 19:40:30,362 INFO L226 Difference]: Without dead ends: 249 [2020-12-22 19:40:30,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2020-12-22 19:40:30,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-12-22 19:40:30,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 172. [2020-12-22 19:40:30,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-12-22 19:40:30,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 211 transitions. [2020-12-22 19:40:30,369 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 211 transitions. Word has length 20 [2020-12-22 19:40:30,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:30,369 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 211 transitions. [2020-12-22 19:40:30,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 19:40:30,370 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 211 transitions. [2020-12-22 19:40:30,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 19:40:30,371 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:30,371 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:30,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-12-22 19:40:30,585 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:30,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:30,587 INFO L82 PathProgramCache]: Analyzing trace with hash -952719529, now seen corresponding path program 1 times [2020-12-22 19:40:30,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:30,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468243662] [2020-12-22 19:40:30,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:30,633 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:40:30,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468243662] [2020-12-22 19:40:30,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778398516] [2020-12-22 19:40:30,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:40:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:30,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-22 19:40:30,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:40:30,795 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:40:30,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:40:30,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-12-22 19:40:30,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099069063] [2020-12-22 19:40:30,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 19:40:30,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:30,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 19:40:30,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:40:30,798 INFO L87 Difference]: Start difference. First operand 172 states and 211 transitions. Second operand 8 states. [2020-12-22 19:40:30,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:30,886 INFO L93 Difference]: Finished difference Result 341 states and 379 transitions. [2020-12-22 19:40:30,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 19:40:30,887 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-12-22 19:40:30,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:30,890 INFO L225 Difference]: With dead ends: 341 [2020-12-22 19:40:30,890 INFO L226 Difference]: Without dead ends: 341 [2020-12-22 19:40:30,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:40:30,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2020-12-22 19:40:30,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 218. [2020-12-22 19:40:30,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-12-22 19:40:30,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 281 transitions. [2020-12-22 19:40:30,898 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 281 transitions. Word has length 21 [2020-12-22 19:40:30,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:30,898 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 281 transitions. [2020-12-22 19:40:30,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 19:40:30,898 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 281 transitions. [2020-12-22 19:40:30,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 19:40:30,905 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:30,906 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:31,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:40:31,121 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:31,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:31,122 INFO L82 PathProgramCache]: Analyzing trace with hash -208177633, now seen corresponding path program 3 times [2020-12-22 19:40:31,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:31,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127253285] [2020-12-22 19:40:31,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:31,203 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-22 19:40:31,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127253285] [2020-12-22 19:40:31,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920574127] [2020-12-22 19:40:31,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:40:31,318 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-12-22 19:40:31,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:40:31,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-22 19:40:31,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:40:31,391 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-22 19:40:31,392 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:31,395 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:31,396 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:31,397 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-22 19:40:31,463 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:31,464 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-12-22 19:40:31,471 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:31,491 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-12-22 19:40:31,497 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:31,497 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-12-22 19:40:31,549 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:31,549 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-12-22 19:40:31,554 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:31,571 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-12-22 19:40:31,575 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:31,576 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-12-22 19:40:31,610 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:31,610 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-12-22 19:40:31,614 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:31,636 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-12-22 19:40:31,638 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:31,638 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-12-22 19:40:31,659 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-22 19:40:31,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:40:31,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2020-12-22 19:40:31,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695482572] [2020-12-22 19:40:31,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:40:31,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:31,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:40:31,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:40:31,667 INFO L87 Difference]: Start difference. First operand 218 states and 281 transitions. Second operand 3 states. [2020-12-22 19:40:31,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:31,765 INFO L93 Difference]: Finished difference Result 243 states and 304 transitions. [2020-12-22 19:40:31,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:40:31,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-22 19:40:31,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:31,767 INFO L225 Difference]: With dead ends: 243 [2020-12-22 19:40:31,768 INFO L226 Difference]: Without dead ends: 243 [2020-12-22 19:40:31,768 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:40:31,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-12-22 19:40:31,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 216. [2020-12-22 19:40:31,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-12-22 19:40:31,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 275 transitions. [2020-12-22 19:40:31,775 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 275 transitions. Word has length 24 [2020-12-22 19:40:31,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:31,776 INFO L481 AbstractCegarLoop]: Abstraction has 216 states and 275 transitions. [2020-12-22 19:40:31,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:40:31,776 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 275 transitions. [2020-12-22 19:40:31,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 19:40:31,777 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:31,777 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:31,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-22 19:40:31,992 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:31,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:31,993 INFO L82 PathProgramCache]: Analyzing trace with hash -208177632, now seen corresponding path program 1 times [2020-12-22 19:40:31,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:31,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553327031] [2020-12-22 19:40:31,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:32,114 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-22 19:40:32,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553327031] [2020-12-22 19:40:32,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686115003] [2020-12-22 19:40:32,117 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 [2020-12-22 19:40:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:32,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 20 conjunts are in the unsatisfiable core [2020-12-22 19:40:32,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:40:32,283 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-22 19:40:32,287 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:32,295 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:32,298 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-22 19:40:32,299 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:32,307 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:32,308 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:32,308 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2020-12-22 19:40:32,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:32,341 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-12-22 19:40:32,343 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:32,357 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:32,369 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:32,369 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-22 19:40:32,372 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:40:32,378 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:32,387 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:32,390 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:32,390 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:18 [2020-12-22 19:40:32,466 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:32,466 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 50 [2020-12-22 19:40:32,469 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:32,503 INFO L625 ElimStorePlain]: treesize reduction 28, result has 45.1 percent of original size [2020-12-22 19:40:32,505 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:32,506 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:24, output treesize:23 [2020-12-22 19:40:32,571 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:32,572 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 50 [2020-12-22 19:40:32,575 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:32,609 INFO L625 ElimStorePlain]: treesize reduction 28, result has 45.1 percent of original size [2020-12-22 19:40:32,611 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:32,612 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:24, output treesize:23 [2020-12-22 19:40:32,658 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-22 19:40:32,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:40:32,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2020-12-22 19:40:32,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153296080] [2020-12-22 19:40:32,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:40:32,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:32,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:40:32,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:40:32,661 INFO L87 Difference]: Start difference. First operand 216 states and 275 transitions. Second operand 5 states. [2020-12-22 19:40:32,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:32,851 INFO L93 Difference]: Finished difference Result 253 states and 309 transitions. [2020-12-22 19:40:32,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:40:32,852 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-12-22 19:40:32,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:32,854 INFO L225 Difference]: With dead ends: 253 [2020-12-22 19:40:32,854 INFO L226 Difference]: Without dead ends: 253 [2020-12-22 19:40:32,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:40:32,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-12-22 19:40:32,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 214. [2020-12-22 19:40:32,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-12-22 19:40:32,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 269 transitions. [2020-12-22 19:40:32,861 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 269 transitions. Word has length 24 [2020-12-22 19:40:32,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:32,862 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 269 transitions. [2020-12-22 19:40:32,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:40:32,862 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 269 transitions. [2020-12-22 19:40:32,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 19:40:32,863 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:32,863 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:33,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:40:33,079 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:33,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:33,080 INFO L82 PathProgramCache]: Analyzing trace with hash -386665450, now seen corresponding path program 2 times [2020-12-22 19:40:33,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:33,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068587939] [2020-12-22 19:40:33,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:33,127 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 19:40:33,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068587939] [2020-12-22 19:40:33,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:40:33,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:40:33,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384524473] [2020-12-22 19:40:33,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:40:33,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:33,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:40:33,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:40:33,129 INFO L87 Difference]: Start difference. First operand 214 states and 269 transitions. Second operand 4 states. [2020-12-22 19:40:33,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:33,230 INFO L93 Difference]: Finished difference Result 216 states and 270 transitions. [2020-12-22 19:40:33,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:40:33,231 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-12-22 19:40:33,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:33,232 INFO L225 Difference]: With dead ends: 216 [2020-12-22 19:40:33,233 INFO L226 Difference]: Without dead ends: 208 [2020-12-22 19:40:33,233 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:40:33,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-12-22 19:40:33,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 206. [2020-12-22 19:40:33,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-12-22 19:40:33,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 260 transitions. [2020-12-22 19:40:33,238 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 260 transitions. Word has length 26 [2020-12-22 19:40:33,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:33,238 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 260 transitions. [2020-12-22 19:40:33,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:40:33,239 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 260 transitions. [2020-12-22 19:40:33,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-22 19:40:33,239 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:33,239 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:33,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 19:40:33,240 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:33,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:33,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1164546374, now seen corresponding path program 1 times [2020-12-22 19:40:33,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:33,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093636576] [2020-12-22 19:40:33,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:33,289 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-22 19:40:33,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093636576] [2020-12-22 19:40:33,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:40:33,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:40:33,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705536433] [2020-12-22 19:40:33,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:40:33,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:33,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:40:33,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:40:33,292 INFO L87 Difference]: Start difference. First operand 206 states and 260 transitions. Second operand 5 states. [2020-12-22 19:40:33,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:33,421 INFO L93 Difference]: Finished difference Result 232 states and 286 transitions. [2020-12-22 19:40:33,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:40:33,421 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-12-22 19:40:33,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:33,423 INFO L225 Difference]: With dead ends: 232 [2020-12-22 19:40:33,423 INFO L226 Difference]: Without dead ends: 232 [2020-12-22 19:40:33,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:40:33,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-12-22 19:40:33,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 205. [2020-12-22 19:40:33,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-12-22 19:40:33,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 257 transitions. [2020-12-22 19:40:33,429 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 257 transitions. Word has length 29 [2020-12-22 19:40:33,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:33,430 INFO L481 AbstractCegarLoop]: Abstraction has 205 states and 257 transitions. [2020-12-22 19:40:33,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:40:33,430 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 257 transitions. [2020-12-22 19:40:33,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-22 19:40:33,431 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:33,431 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:33,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 19:40:33,431 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:33,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:33,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1164546375, now seen corresponding path program 1 times [2020-12-22 19:40:33,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:33,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802062240] [2020-12-22 19:40:33,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:33,504 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-22 19:40:33,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802062240] [2020-12-22 19:40:33,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:40:33,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 19:40:33,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394677965] [2020-12-22 19:40:33,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 19:40:33,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:33,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 19:40:33,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:40:33,507 INFO L87 Difference]: Start difference. First operand 205 states and 257 transitions. Second operand 6 states. [2020-12-22 19:40:33,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:33,626 INFO L93 Difference]: Finished difference Result 204 states and 254 transitions. [2020-12-22 19:40:33,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:40:33,627 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-12-22 19:40:33,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:33,628 INFO L225 Difference]: With dead ends: 204 [2020-12-22 19:40:33,629 INFO L226 Difference]: Without dead ends: 204 [2020-12-22 19:40:33,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:40:33,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-12-22 19:40:33,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2020-12-22 19:40:33,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-12-22 19:40:33,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 254 transitions. [2020-12-22 19:40:33,634 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 254 transitions. Word has length 29 [2020-12-22 19:40:33,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:33,634 INFO L481 AbstractCegarLoop]: Abstraction has 204 states and 254 transitions. [2020-12-22 19:40:33,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 19:40:33,635 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 254 transitions. [2020-12-22 19:40:33,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 19:40:33,635 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:33,635 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:33,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 19:40:33,636 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:33,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:33,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1741199269, now seen corresponding path program 1 times [2020-12-22 19:40:33,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:33,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350183167] [2020-12-22 19:40:33,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:33,769 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 19:40:33,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350183167] [2020-12-22 19:40:33,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10861509] [2020-12-22 19:40:33,770 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 [2020-12-22 19:40:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:33,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-22 19:40:33,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:40:33,902 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-22 19:40:33,903 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:33,905 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:33,906 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:33,906 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-22 19:40:33,936 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:33,936 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-12-22 19:40:33,939 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:33,954 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-12-22 19:40:33,956 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:33,956 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-12-22 19:40:33,985 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:33,985 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-12-22 19:40:33,988 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:34,002 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-12-22 19:40:34,004 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:34,004 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-12-22 19:40:34,039 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:34,039 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-12-22 19:40:34,041 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:34,055 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-12-22 19:40:34,057 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:34,057 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-12-22 19:40:34,088 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:34,088 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-12-22 19:40:34,091 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:34,108 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-12-22 19:40:34,110 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:34,110 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-12-22 19:40:34,131 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-22 19:40:34,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:40:34,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-12-22 19:40:34,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942907532] [2020-12-22 19:40:34,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:40:34,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:34,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:40:34,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:40:34,134 INFO L87 Difference]: Start difference. First operand 204 states and 254 transitions. Second operand 4 states. [2020-12-22 19:40:34,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:34,237 INFO L93 Difference]: Finished difference Result 229 states and 277 transitions. [2020-12-22 19:40:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:40:34,237 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-12-22 19:40:34,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:34,239 INFO L225 Difference]: With dead ends: 229 [2020-12-22 19:40:34,239 INFO L226 Difference]: Without dead ends: 229 [2020-12-22 19:40:34,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:40:34,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-12-22 19:40:34,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 202. [2020-12-22 19:40:34,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-12-22 19:40:34,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 248 transitions. [2020-12-22 19:40:34,245 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 248 transitions. Word has length 30 [2020-12-22 19:40:34,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:34,245 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 248 transitions. [2020-12-22 19:40:34,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:40:34,246 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 248 transitions. [2020-12-22 19:40:34,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 19:40:34,246 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:34,246 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:34,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:40:34,461 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:34,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:34,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1741199270, now seen corresponding path program 1 times [2020-12-22 19:40:34,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:34,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906897885] [2020-12-22 19:40:34,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:34,749 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:40:34,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906897885] [2020-12-22 19:40:34,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519222539] [2020-12-22 19:40:34,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:40:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:34,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-22 19:40:34,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:40:34,867 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-22 19:40:34,867 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:34,874 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:34,875 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:34,875 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-12-22 19:40:34,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:34,911 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-12-22 19:40:34,912 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:34,922 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:34,924 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:34,953 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:20 [2020-12-22 19:40:35,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:35,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:35,020 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:35,021 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 36 [2020-12-22 19:40:35,023 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:35,061 INFO L625 ElimStorePlain]: treesize reduction 14, result has 66.7 percent of original size [2020-12-22 19:40:35,064 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:35,064 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:28 [2020-12-22 19:40:35,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:35,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:35,128 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:35,128 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 36 [2020-12-22 19:40:35,130 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:35,166 INFO L625 ElimStorePlain]: treesize reduction 14, result has 66.7 percent of original size [2020-12-22 19:40:35,169 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:35,169 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:28 [2020-12-22 19:40:35,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:35,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:35,236 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:35,236 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 36 [2020-12-22 19:40:35,239 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:35,272 INFO L625 ElimStorePlain]: treesize reduction 14, result has 67.4 percent of original size [2020-12-22 19:40:35,274 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:35,275 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:29 [2020-12-22 19:40:35,379 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 19:40:35,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:40:35,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4] total 13 [2020-12-22 19:40:35,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196368602] [2020-12-22 19:40:35,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-22 19:40:35,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:35,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-22 19:40:35,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-12-22 19:40:35,382 INFO L87 Difference]: Start difference. First operand 202 states and 248 transitions. Second operand 14 states. [2020-12-22 19:40:35,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:35,815 INFO L93 Difference]: Finished difference Result 227 states and 270 transitions. [2020-12-22 19:40:35,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 19:40:35,816 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 30 [2020-12-22 19:40:35,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:35,817 INFO L225 Difference]: With dead ends: 227 [2020-12-22 19:40:35,817 INFO L226 Difference]: Without dead ends: 227 [2020-12-22 19:40:35,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=113, Invalid=193, Unknown=0, NotChecked=0, Total=306 [2020-12-22 19:40:35,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-12-22 19:40:35,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 198. [2020-12-22 19:40:35,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-12-22 19:40:35,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 240 transitions. [2020-12-22 19:40:35,823 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 240 transitions. Word has length 30 [2020-12-22 19:40:35,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:35,824 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 240 transitions. [2020-12-22 19:40:35,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-22 19:40:35,824 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 240 transitions. [2020-12-22 19:40:35,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 19:40:35,825 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:35,825 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:36,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:40:36,026 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:36,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:36,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1747434766, now seen corresponding path program 1 times [2020-12-22 19:40:36,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:36,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607961678] [2020-12-22 19:40:36,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:36,409 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 19:40:36,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607961678] [2020-12-22 19:40:36,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354035160] [2020-12-22 19:40:36,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:40:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:36,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 68 conjunts are in the unsatisfiable core [2020-12-22 19:40:36,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:40:36,601 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-22 19:40:36,602 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:36,615 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:36,619 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-22 19:40:36,620 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:36,632 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:36,633 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:36,633 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:31 [2020-12-22 19:40:36,678 INFO L443 ElimStorePlain]: Different costs {1=[|v_#length_54|], 3=[|v_#valid_69|]} [2020-12-22 19:40:36,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:36,686 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-12-22 19:40:36,687 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:36,710 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:36,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:36,720 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2020-12-22 19:40:36,722 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:36,741 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:36,742 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:36,742 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:51, output treesize:44 [2020-12-22 19:40:36,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:36,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:36,816 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:36,816 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 36 [2020-12-22 19:40:36,818 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:36,880 INFO L625 ElimStorePlain]: treesize reduction 14, result has 80.6 percent of original size [2020-12-22 19:40:36,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:36,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:36,901 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:36,902 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 36 [2020-12-22 19:40:36,904 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:36,967 INFO L625 ElimStorePlain]: treesize reduction 14, result has 80.3 percent of original size [2020-12-22 19:40:36,968 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:36,969 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:59, output treesize:57 [2020-12-22 19:40:37,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:37,050 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-22 19:40:37,052 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:37,088 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:37,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:37,097 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-22 19:40:37,100 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:37,134 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:37,136 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:37,137 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:79, output treesize:57 [2020-12-22 19:40:37,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:37,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:37,203 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:37,204 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 36 [2020-12-22 19:40:37,206 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:37,285 INFO L625 ElimStorePlain]: treesize reduction 14, result has 80.8 percent of original size [2020-12-22 19:40:37,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:37,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:37,305 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:37,306 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 36 [2020-12-22 19:40:37,308 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:37,367 INFO L625 ElimStorePlain]: treesize reduction 14, result has 80.6 percent of original size [2020-12-22 19:40:37,368 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:37,368 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:60, output treesize:58 [2020-12-22 19:40:37,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:37,455 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-22 19:40:37,457 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:37,491 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:37,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:37,500 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-22 19:40:37,502 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:37,534 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:37,537 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:37,538 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:80, output treesize:58 [2020-12-22 19:40:37,617 INFO L443 ElimStorePlain]: Different costs {1=[|v_#length_57|], 6=[|v_#valid_72|]} [2020-12-22 19:40:37,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:37,623 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-22 19:40:37,628 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:37,645 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:37,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:37,690 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:37,691 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 69 [2020-12-22 19:40:37,694 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:40:37,696 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:40:37,700 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:37,721 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:37,723 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:37,723 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:54, output treesize:46 [2020-12-22 19:40:37,801 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-22 19:40:37,804 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:37,834 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:37,852 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-22 19:40:37,854 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:37,882 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:37,886 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:37,886 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:68, output treesize:46 [2020-12-22 19:40:37,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:37,987 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-12-22 19:40:37,989 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:38,022 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:38,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:38,032 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-12-22 19:40:38,034 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:38,062 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:38,068 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:38,068 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:72, output treesize:46 [2020-12-22 19:40:38,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:38,095 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-22 19:40:38,097 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:38,123 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:38,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:38,129 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-22 19:40:38,130 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:38,159 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:38,163 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:38,164 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:68, output treesize:60 [2020-12-22 19:40:38,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:38,430 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2020-12-22 19:40:38,432 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:38,462 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:38,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:38,483 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:38,484 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 44 [2020-12-22 19:40:38,487 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:38,548 INFO L625 ElimStorePlain]: treesize reduction 16, result has 79.7 percent of original size [2020-12-22 19:40:38,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:38,573 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:38,574 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 44 [2020-12-22 19:40:38,578 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:38,633 INFO L625 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2020-12-22 19:40:38,638 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:38,638 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:82, output treesize:51 [2020-12-22 19:40:38,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:38,749 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:38,749 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 21 [2020-12-22 19:40:38,751 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:38,763 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:38,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:38,773 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:38,773 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 21 [2020-12-22 19:40:38,775 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:38,781 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:38,783 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:38,783 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:62, output treesize:7 [2020-12-22 19:40:38,802 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 19:40:38,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:40:38,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 23 [2020-12-22 19:40:38,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913233789] [2020-12-22 19:40:38,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-12-22 19:40:38,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:38,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-12-22 19:40:38,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2020-12-22 19:40:38,804 INFO L87 Difference]: Start difference. First operand 198 states and 240 transitions. Second operand 23 states. [2020-12-22 19:40:39,079 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2020-12-22 19:40:39,244 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-12-22 19:40:39,538 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-12-22 19:40:39,779 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2020-12-22 19:40:40,039 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 87 [2020-12-22 19:40:40,346 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 91 [2020-12-22 19:40:40,643 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 91 [2020-12-22 19:40:41,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:41,166 INFO L93 Difference]: Finished difference Result 359 states and 419 transitions. [2020-12-22 19:40:41,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 19:40:41,167 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 33 [2020-12-22 19:40:41,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:41,169 INFO L225 Difference]: With dead ends: 359 [2020-12-22 19:40:41,170 INFO L226 Difference]: Without dead ends: 359 [2020-12-22 19:40:41,171 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=265, Invalid=665, Unknown=0, NotChecked=0, Total=930 [2020-12-22 19:40:41,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-12-22 19:40:41,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 276. [2020-12-22 19:40:41,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-12-22 19:40:41,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 321 transitions. [2020-12-22 19:40:41,179 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 321 transitions. Word has length 33 [2020-12-22 19:40:41,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:41,179 INFO L481 AbstractCegarLoop]: Abstraction has 276 states and 321 transitions. [2020-12-22 19:40:41,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-12-22 19:40:41,179 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 321 transitions. [2020-12-22 19:40:41,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 19:40:41,180 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:41,180 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:41,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:40:41,395 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:41,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:41,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1002405994, now seen corresponding path program 1 times [2020-12-22 19:40:41,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:41,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674461770] [2020-12-22 19:40:41,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:41,509 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-12-22 19:40:41,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674461770] [2020-12-22 19:40:41,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150074478] [2020-12-22 19:40:41,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:40:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:41,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 19:40:41,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:40:41,786 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:40:41,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:40:41,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10] total 13 [2020-12-22 19:40:41,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150115507] [2020-12-22 19:40:41,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 19:40:41,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:41,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 19:40:41,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-12-22 19:40:41,792 INFO L87 Difference]: Start difference. First operand 276 states and 321 transitions. Second operand 13 states. [2020-12-22 19:40:42,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:42,281 INFO L93 Difference]: Finished difference Result 596 states and 662 transitions. [2020-12-22 19:40:42,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 19:40:42,282 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 54 [2020-12-22 19:40:42,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:42,285 INFO L225 Difference]: With dead ends: 596 [2020-12-22 19:40:42,285 INFO L226 Difference]: Without dead ends: 596 [2020-12-22 19:40:42,286 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2020-12-22 19:40:42,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2020-12-22 19:40:42,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 300. [2020-12-22 19:40:42,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-12-22 19:40:42,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 356 transitions. [2020-12-22 19:40:42,295 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 356 transitions. Word has length 54 [2020-12-22 19:40:42,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:42,295 INFO L481 AbstractCegarLoop]: Abstraction has 300 states and 356 transitions. [2020-12-22 19:40:42,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 19:40:42,296 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 356 transitions. [2020-12-22 19:40:42,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-22 19:40:42,296 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:42,297 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:42,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:40:42,519 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:42,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:42,520 INFO L82 PathProgramCache]: Analyzing trace with hash -640958355, now seen corresponding path program 1 times [2020-12-22 19:40:42,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:42,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419689263] [2020-12-22 19:40:42,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:42,690 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-12-22 19:40:42,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419689263] [2020-12-22 19:40:42,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:40:42,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 19:40:42,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248839011] [2020-12-22 19:40:42,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 19:40:42,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:42,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 19:40:42,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:40:42,693 INFO L87 Difference]: Start difference. First operand 300 states and 356 transitions. Second operand 9 states. [2020-12-22 19:40:43,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:43,156 INFO L93 Difference]: Finished difference Result 508 states and 602 transitions. [2020-12-22 19:40:43,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 19:40:43,157 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 55 [2020-12-22 19:40:43,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:43,160 INFO L225 Difference]: With dead ends: 508 [2020-12-22 19:40:43,160 INFO L226 Difference]: Without dead ends: 508 [2020-12-22 19:40:43,160 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-22 19:40:43,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-12-22 19:40:43,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 325. [2020-12-22 19:40:43,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2020-12-22 19:40:43,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 392 transitions. [2020-12-22 19:40:43,169 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 392 transitions. Word has length 55 [2020-12-22 19:40:43,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:43,170 INFO L481 AbstractCegarLoop]: Abstraction has 325 states and 392 transitions. [2020-12-22 19:40:43,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 19:40:43,170 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 392 transitions. [2020-12-22 19:40:43,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-22 19:40:43,171 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:43,171 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:43,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 19:40:43,172 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:43,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:43,172 INFO L82 PathProgramCache]: Analyzing trace with hash -640958354, now seen corresponding path program 1 times [2020-12-22 19:40:43,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:43,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101145603] [2020-12-22 19:40:43,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:43,266 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 19 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-22 19:40:43,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101145603] [2020-12-22 19:40:43,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650617] [2020-12-22 19:40:43,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:40:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:43,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-22 19:40:43,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:40:43,453 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 22 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-22 19:40:43,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:40:43,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2020-12-22 19:40:43,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481845221] [2020-12-22 19:40:43,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 19:40:43,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:43,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 19:40:43,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:40:43,455 INFO L87 Difference]: Start difference. First operand 325 states and 392 transitions. Second operand 10 states. [2020-12-22 19:40:43,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:43,761 INFO L93 Difference]: Finished difference Result 524 states and 608 transitions. [2020-12-22 19:40:43,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 19:40:43,761 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 55 [2020-12-22 19:40:43,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:43,764 INFO L225 Difference]: With dead ends: 524 [2020-12-22 19:40:43,764 INFO L226 Difference]: Without dead ends: 524 [2020-12-22 19:40:43,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-12-22 19:40:43,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-12-22 19:40:43,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 333. [2020-12-22 19:40:43,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2020-12-22 19:40:43,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 400 transitions. [2020-12-22 19:40:43,775 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 400 transitions. Word has length 55 [2020-12-22 19:40:43,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:43,775 INFO L481 AbstractCegarLoop]: Abstraction has 333 states and 400 transitions. [2020-12-22 19:40:43,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 19:40:43,776 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 400 transitions. [2020-12-22 19:40:43,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-22 19:40:43,776 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:43,777 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:43,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-12-22 19:40:43,990 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:43,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:43,990 INFO L82 PathProgramCache]: Analyzing trace with hash 2060864946, now seen corresponding path program 2 times [2020-12-22 19:40:43,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:43,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759221086] [2020-12-22 19:40:43,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:44,238 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-12-22 19:40:44,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759221086] [2020-12-22 19:40:44,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:40:44,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 19:40:44,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792046217] [2020-12-22 19:40:44,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 19:40:44,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:44,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 19:40:44,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:40:44,241 INFO L87 Difference]: Start difference. First operand 333 states and 400 transitions. Second operand 9 states. [2020-12-22 19:40:44,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:44,735 INFO L93 Difference]: Finished difference Result 497 states and 602 transitions. [2020-12-22 19:40:44,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 19:40:44,735 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 55 [2020-12-22 19:40:44,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:44,738 INFO L225 Difference]: With dead ends: 497 [2020-12-22 19:40:44,739 INFO L226 Difference]: Without dead ends: 497 [2020-12-22 19:40:44,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-12-22 19:40:44,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-12-22 19:40:44,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 366. [2020-12-22 19:40:44,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-12-22 19:40:44,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 450 transitions. [2020-12-22 19:40:44,751 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 450 transitions. Word has length 55 [2020-12-22 19:40:44,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:44,752 INFO L481 AbstractCegarLoop]: Abstraction has 366 states and 450 transitions. [2020-12-22 19:40:44,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 19:40:44,752 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 450 transitions. [2020-12-22 19:40:44,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-22 19:40:44,753 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:44,753 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:44,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 19:40:44,754 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:44,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:44,754 INFO L82 PathProgramCache]: Analyzing trace with hash -537701734, now seen corresponding path program 1 times [2020-12-22 19:40:44,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:44,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061133056] [2020-12-22 19:40:44,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:44,852 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-12-22 19:40:44,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061133056] [2020-12-22 19:40:44,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:40:44,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 19:40:44,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909209030] [2020-12-22 19:40:44,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 19:40:44,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:44,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 19:40:44,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:40:44,854 INFO L87 Difference]: Start difference. First operand 366 states and 450 transitions. Second operand 7 states. [2020-12-22 19:40:45,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:45,081 INFO L93 Difference]: Finished difference Result 416 states and 518 transitions. [2020-12-22 19:40:45,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 19:40:45,082 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2020-12-22 19:40:45,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:45,084 INFO L225 Difference]: With dead ends: 416 [2020-12-22 19:40:45,085 INFO L226 Difference]: Without dead ends: 416 [2020-12-22 19:40:45,085 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:40:45,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-12-22 19:40:45,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 404. [2020-12-22 19:40:45,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2020-12-22 19:40:45,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 510 transitions. [2020-12-22 19:40:45,096 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 510 transitions. Word has length 56 [2020-12-22 19:40:45,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:45,097 INFO L481 AbstractCegarLoop]: Abstraction has 404 states and 510 transitions. [2020-12-22 19:40:45,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 19:40:45,097 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 510 transitions. [2020-12-22 19:40:45,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-22 19:40:45,098 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:45,098 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:45,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-22 19:40:45,099 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:45,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:45,099 INFO L82 PathProgramCache]: Analyzing trace with hash 511114905, now seen corresponding path program 1 times [2020-12-22 19:40:45,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:45,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716396359] [2020-12-22 19:40:45,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:45,208 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-12-22 19:40:45,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716396359] [2020-12-22 19:40:45,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:40:45,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 19:40:45,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831587039] [2020-12-22 19:40:45,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 19:40:45,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:45,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 19:40:45,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:40:45,210 INFO L87 Difference]: Start difference. First operand 404 states and 510 transitions. Second operand 8 states. [2020-12-22 19:40:45,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:45,468 INFO L93 Difference]: Finished difference Result 502 states and 623 transitions. [2020-12-22 19:40:45,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 19:40:45,469 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-12-22 19:40:45,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:45,472 INFO L225 Difference]: With dead ends: 502 [2020-12-22 19:40:45,472 INFO L226 Difference]: Without dead ends: 502 [2020-12-22 19:40:45,473 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-12-22 19:40:45,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-12-22 19:40:45,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 404. [2020-12-22 19:40:45,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2020-12-22 19:40:45,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 505 transitions. [2020-12-22 19:40:45,483 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 505 transitions. Word has length 57 [2020-12-22 19:40:45,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:45,483 INFO L481 AbstractCegarLoop]: Abstraction has 404 states and 505 transitions. [2020-12-22 19:40:45,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 19:40:45,483 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 505 transitions. [2020-12-22 19:40:45,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-22 19:40:45,484 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:45,484 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:45,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-22 19:40:45,485 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:45,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:45,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1329804348, now seen corresponding path program 1 times [2020-12-22 19:40:45,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:45,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367478372] [2020-12-22 19:40:45,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:45,907 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-12-22 19:40:45,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367478372] [2020-12-22 19:40:45,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035003039] [2020-12-22 19:40:45,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:40:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:46,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 50 conjunts are in the unsatisfiable core [2020-12-22 19:40:46,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:40:46,050 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-22 19:40:46,051 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:46,056 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:46,057 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:46,058 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-22 19:40:46,099 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:46,100 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-22 19:40:46,101 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:40:46,103 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:46,113 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:46,114 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:46,114 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2020-12-22 19:40:46,169 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-22 19:40:46,170 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:46,183 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:46,184 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:46,184 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-12-22 19:40:46,383 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-22 19:40:46,384 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:46,401 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:46,403 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:46,403 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:28 [2020-12-22 19:40:46,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:46,461 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-22 19:40:46,463 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:46,478 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:46,479 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:46,480 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:35 [2020-12-22 19:40:46,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:46,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:46,706 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:40:46,708 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2020-12-22 19:40:46,710 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:46,732 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:46,734 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:46,734 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:52, output treesize:41 [2020-12-22 19:40:46,963 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_31|], 6=[|v_#memory_$Pointer$.base_34|]} [2020-12-22 19:40:46,970 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-22 19:40:46,971 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:47,002 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:47,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:47,010 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2020-12-22 19:40:47,012 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:47,043 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:47,050 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:47,051 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:63, output treesize:65 [2020-12-22 19:40:47,361 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:40:47,362 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2020-12-22 19:40:47,364 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:47,387 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:47,393 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:47,393 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:79, output treesize:60 [2020-12-22 19:40:47,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:47,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:47,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:47,644 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:40:47,645 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:40:47,646 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:40:47,672 INFO L348 Elim1Store]: treesize reduction 8, result has 71.4 percent of original size [2020-12-22 19:40:47,673 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 48 treesize of output 41 [2020-12-22 19:40:47,675 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:40:47,677 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:47,693 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:47,696 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:47,696 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:66, output treesize:5 [2020-12-22 19:40:47,740 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-12-22 19:40:47,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:40:47,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18] total 30 [2020-12-22 19:40:47,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213390392] [2020-12-22 19:40:47,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-12-22 19:40:47,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:47,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-12-22 19:40:47,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=851, Unknown=0, NotChecked=0, Total=930 [2020-12-22 19:40:47,743 INFO L87 Difference]: Start difference. First operand 404 states and 505 transitions. Second operand 31 states. [2020-12-22 19:40:48,828 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-12-22 19:40:49,045 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2020-12-22 19:40:49,289 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2020-12-22 19:40:49,562 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2020-12-22 19:40:50,332 WARN L197 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 94 [2020-12-22 19:40:50,683 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 94 [2020-12-22 19:40:51,045 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2020-12-22 19:40:51,404 WARN L197 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 100 [2020-12-22 19:40:51,767 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2020-12-22 19:40:52,089 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2020-12-22 19:40:53,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:40:53,128 INFO L93 Difference]: Finished difference Result 604 states and 741 transitions. [2020-12-22 19:40:53,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-12-22 19:40:53,129 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 58 [2020-12-22 19:40:53,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:40:53,132 INFO L225 Difference]: With dead ends: 604 [2020-12-22 19:40:53,132 INFO L226 Difference]: Without dead ends: 604 [2020-12-22 19:40:53,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=668, Invalid=2302, Unknown=0, NotChecked=0, Total=2970 [2020-12-22 19:40:53,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2020-12-22 19:40:53,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 408. [2020-12-22 19:40:53,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2020-12-22 19:40:53,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 513 transitions. [2020-12-22 19:40:53,145 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 513 transitions. Word has length 58 [2020-12-22 19:40:53,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:40:53,145 INFO L481 AbstractCegarLoop]: Abstraction has 408 states and 513 transitions. [2020-12-22 19:40:53,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-12-22 19:40:53,145 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 513 transitions. [2020-12-22 19:40:53,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-22 19:40:53,146 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:40:53,146 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:40:53,361 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-12-22 19:40:53,362 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:40:53,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:40:53,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1329804347, now seen corresponding path program 1 times [2020-12-22 19:40:53,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:40:53,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050476090] [2020-12-22 19:40:53,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:40:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:53,854 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-12-22 19:40:53,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050476090] [2020-12-22 19:40:53,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887385335] [2020-12-22 19:40:53,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:40:53,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:40:53,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 71 conjunts are in the unsatisfiable core [2020-12-22 19:40:53,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:40:53,994 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-22 19:40:53,995 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:53,999 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:54,001 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:54,001 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-22 19:40:54,040 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:54,040 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-22 19:40:54,042 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:40:54,044 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:54,053 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:54,054 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:54,054 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2020-12-22 19:40:54,106 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-22 19:40:54,107 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:54,120 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:54,121 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:54,121 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:25 [2020-12-22 19:40:54,403 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-22 19:40:54,404 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:54,428 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:54,434 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-22 19:40:54,435 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:54,458 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:54,460 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:54,460 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:54, output treesize:46 [2020-12-22 19:40:54,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:54,538 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2020-12-22 19:40:54,540 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:54,567 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:54,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:54,575 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-22 19:40:54,578 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:54,603 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:54,605 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:54,605 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:71, output treesize:63 [2020-12-22 19:40:54,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:54,865 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2020-12-22 19:40:54,868 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:54,903 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:54,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:54,924 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2020-12-22 19:40:54,926 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:54,955 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:54,956 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:54,956 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:85, output treesize:63 [2020-12-22 19:40:55,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:55,073 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2020-12-22 19:40:55,074 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:55,105 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:55,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:55,112 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2020-12-22 19:40:55,114 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:55,144 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:55,146 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:55,147 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:85, output treesize:115 [2020-12-22 19:40:55,665 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:40:55,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:55,670 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:40:55,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:40:55,673 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:40:55,685 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:55,686 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 126 treesize of output 88 [2020-12-22 19:40:55,689 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:40:55,691 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:40:55,722 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:55,727 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:40:55,742 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:55,743 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 56 [2020-12-22 19:40:55,746 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:40:55,749 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:40:55,762 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:40:55,766 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:40:55,766 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:149, output treesize:12 [2020-12-22 19:40:55,835 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-12-22 19:40:55,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:40:55,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18] total 30 [2020-12-22 19:40:55,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406671292] [2020-12-22 19:40:55,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-12-22 19:40:55,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:40:55,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-12-22 19:40:55,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=851, Unknown=0, NotChecked=0, Total=930 [2020-12-22 19:40:55,838 INFO L87 Difference]: Start difference. First operand 408 states and 513 transitions. Second operand 31 states. [2020-12-22 19:40:56,564 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2020-12-22 19:40:56,759 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2020-12-22 19:40:56,928 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2020-12-22 19:40:57,140 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-12-22 19:40:57,435 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 70 [2020-12-22 19:40:57,821 WARN L197 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2020-12-22 19:40:58,257 WARN L197 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 89 [2020-12-22 19:40:58,731 WARN L197 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 113 [2020-12-22 19:40:58,920 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-12-22 19:40:59,741 WARN L197 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 121 [2020-12-22 19:41:00,253 WARN L197 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 121 [2020-12-22 19:41:00,834 WARN L197 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 126 [2020-12-22 19:41:01,410 WARN L197 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 131 [2020-12-22 19:41:01,982 WARN L197 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 126 [2020-12-22 19:41:02,523 WARN L197 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 118 [2020-12-22 19:41:03,405 WARN L197 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 114 [2020-12-22 19:41:03,912 WARN L197 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 109 [2020-12-22 19:41:04,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:41:04,300 INFO L93 Difference]: Finished difference Result 661 states and 800 transitions. [2020-12-22 19:41:04,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-12-22 19:41:04,302 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 58 [2020-12-22 19:41:04,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:41:04,305 INFO L225 Difference]: With dead ends: 661 [2020-12-22 19:41:04,305 INFO L226 Difference]: Without dead ends: 661 [2020-12-22 19:41:04,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=686, Invalid=2284, Unknown=0, NotChecked=0, Total=2970 [2020-12-22 19:41:04,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2020-12-22 19:41:04,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 408. [2020-12-22 19:41:04,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2020-12-22 19:41:04,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 511 transitions. [2020-12-22 19:41:04,316 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 511 transitions. Word has length 58 [2020-12-22 19:41:04,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:41:04,316 INFO L481 AbstractCegarLoop]: Abstraction has 408 states and 511 transitions. [2020-12-22 19:41:04,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-12-22 19:41:04,317 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 511 transitions. [2020-12-22 19:41:04,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-22 19:41:04,317 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:41:04,318 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:41:04,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-12-22 19:41:04,533 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:41:04,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:41:04,534 INFO L82 PathProgramCache]: Analyzing trace with hash 577135006, now seen corresponding path program 1 times [2020-12-22 19:41:04,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:41:04,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374222102] [2020-12-22 19:41:04,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:41:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:41:05,670 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 23 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-12-22 19:41:05,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374222102] [2020-12-22 19:41:05,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25904524] [2020-12-22 19:41:05,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:41:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:41:05,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 96 conjunts are in the unsatisfiable core [2020-12-22 19:41:05,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:41:05,809 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-22 19:41:05,810 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:41:05,815 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:41:05,815 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:41:05,816 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-22 19:41:05,898 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:41:05,898 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-22 19:41:05,900 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:41:05,902 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:41:05,914 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:41:05,915 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:41:05,915 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:27 [2020-12-22 19:41:06,020 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:41:06,020 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 50 [2020-12-22 19:41:06,023 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:41:06,075 INFO L625 ElimStorePlain]: treesize reduction 28, result has 53.3 percent of original size [2020-12-22 19:41:06,078 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:41:06,078 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:33, output treesize:32 [2020-12-22 19:41:06,187 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:41:06,188 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 50 [2020-12-22 19:41:06,191 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:41:06,246 INFO L625 ElimStorePlain]: treesize reduction 28, result has 56.3 percent of original size [2020-12-22 19:41:06,247 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:41:06,247 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:37, output treesize:36 [2020-12-22 19:41:06,530 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2020-12-22 19:41:06,531 INFO L348 Elim1Store]: treesize reduction 16, result has 83.7 percent of original size [2020-12-22 19:41:06,531 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 27 treesize of output 99 [2020-12-22 19:41:06,534 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:41:06,535 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:41:06,543 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:41:06,546 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:41:06,575 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:41:06,577 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:41:06,577 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:56 [2020-12-22 19:41:06,681 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-22 19:41:06,682 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:41:06,719 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:41:06,720 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:41:06,720 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:71 [2020-12-22 19:41:07,211 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_36|], 2=[|v_#memory_$Pointer$.base_40|]} [2020-12-22 19:41:07,218 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-22 19:41:07,219 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:41:07,282 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:41:07,289 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2020-12-22 19:41:07,291 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:41:07,332 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:41:07,335 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:41:07,335 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:97, output treesize:143 [2020-12-22 19:41:07,485 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_37|], 6=[|v_#memory_$Pointer$.base_41|]} [2020-12-22 19:41:07,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:41:07,493 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 72 [2020-12-22 19:41:07,494 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:41:07,548 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:41:07,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:41:07,556 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:41:07,569 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:41:07,570 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 110 treesize of output 81 [2020-12-22 19:41:07,581 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:41:07,584 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:41:07,683 INFO L625 ElimStorePlain]: treesize reduction 10, result has 93.8 percent of original size [2020-12-22 19:41:07,684 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:41:07,685 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:168, output treesize:150 [2020-12-22 19:41:08,145 INFO L443 ElimStorePlain]: Different costs {6=[|v_#memory_$Pointer$.offset_38|], 12=[|v_#memory_$Pointer$.base_42|]} [2020-12-22 19:41:08,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:41:08,152 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 75 [2020-12-22 19:41:08,154 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:41:08,216 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:41:08,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:41:08,237 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:41:08,255 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:41:08,256 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 107 treesize of output 88 [2020-12-22 19:41:08,261 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:41:08,262 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:41:08,264 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:41:08,265 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:41:08,369 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-12-22 19:41:08,370 INFO L625 ElimStorePlain]: treesize reduction 50, result has 70.8 percent of original size [2020-12-22 19:41:08,371 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:41:08,372 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:172, output treesize:150 [2020-12-22 19:41:08,596 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-12-22 19:41:08,996 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-22 19:41:09,016 INFO L443 ElimStorePlain]: Different costs {6=[|v_#memory_$Pointer$.offset_39|], 20=[|v_#memory_$Pointer$.base_43|]} [2020-12-22 19:41:09,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:41:09,024 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 82 [2020-12-22 19:41:09,026 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:41:09,075 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:41:09,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:41:09,084 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:41:09,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:41:09,086 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:41:09,109 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:41:09,110 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 104 treesize of output 102 [2020-12-22 19:41:09,113 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:41:09,114 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:41:09,115 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:41:09,119 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:41:09,239 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-12-22 19:41:09,240 INFO L625 ElimStorePlain]: treesize reduction 64, result has 71.2 percent of original size [2020-12-22 19:41:09,242 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:41:09,242 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:163, output treesize:264 [2020-12-22 19:41:09,783 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:41:09,783 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 273 treesize of output 153 [2020-12-22 19:41:09,787 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 19:41:09,791 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:41:09,828 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:41:09,831 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:41:09,832 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:295, output treesize:153 [2020-12-22 19:41:10,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:41:10,129 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:41:10,130 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:41:10,143 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:41:10,143 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 140 treesize of output 68 [2020-12-22 19:41:10,147 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:41:10,148 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:41:10,148 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:41:10,149 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:41:10,150 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:41:10,151 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:41:10,152 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:41:10,153 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:41:10,154 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:41:10,155 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:41:10,156 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:41:10,157 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:41:10,157 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:41:10,159 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:41:10,160 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:41:10,161 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:41:10,162 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:41:10,163 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:41:10,166 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:41:10,167 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:41:10,168 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:41:10,171 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:41:10,172 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:41:10,173 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:41:10,181 INFO L547 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:41:10,206 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:41:10,213 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:41:10,213 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:157, output treesize:41 [2020-12-22 19:41:10,540 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-12-22 19:41:10,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:41:10,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 24] total 45 [2020-12-22 19:41:10,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839621690] [2020-12-22 19:41:10,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-12-22 19:41:10,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:41:10,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-12-22 19:41:10,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=1928, Unknown=0, NotChecked=0, Total=2070 [2020-12-22 19:41:10,543 INFO L87 Difference]: Start difference. First operand 408 states and 511 transitions. Second operand 46 states. [2020-12-22 19:41:11,324 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-12-22 19:41:11,582 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2020-12-22 19:41:11,878 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2020-12-22 19:41:12,154 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 58 [2020-12-22 19:41:12,502 WARN L197 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2020-12-22 19:41:12,950 WARN L197 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 84 [2020-12-22 19:41:13,505 WARN L197 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 101 [2020-12-22 19:41:14,326 WARN L197 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 130 [2020-12-22 19:41:14,955 WARN L197 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 113 [2020-12-22 19:41:15,589 WARN L197 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 103 [2020-12-22 19:41:16,520 WARN L197 SmtUtils]: Spent 818.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 134 [2020-12-22 19:41:17,781 WARN L197 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 196 DAG size of output: 165 [2020-12-22 19:41:19,196 WARN L197 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 200 DAG size of output: 169 [2020-12-22 19:41:20,528 WARN L197 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 200 DAG size of output: 169 [2020-12-22 19:41:21,822 WARN L197 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 201 DAG size of output: 156 [2020-12-22 19:41:23,599 WARN L197 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 229 DAG size of output: 198 [2020-12-22 19:41:24,464 WARN L197 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 119 [2020-12-22 19:41:24,769 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2020-12-22 19:41:25,112 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2020-12-22 19:41:27,195 WARN L197 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 266 DAG size of output: 235 [2020-12-22 19:41:29,192 WARN L197 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 266 DAG size of output: 235 [2020-12-22 19:41:31,435 WARN L197 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 292 DAG size of output: 261 [2020-12-22 19:41:33,796 WARN L197 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 306 DAG size of output: 276 [2020-12-22 19:41:36,675 WARN L197 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 326 DAG size of output: 278 [2020-12-22 19:41:39,599 WARN L197 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 335 DAG size of output: 283 [2020-12-22 19:41:41,582 WARN L197 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 292 DAG size of output: 261 [2020-12-22 19:41:44,043 WARN L197 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 313 DAG size of output: 267 [2020-12-22 19:41:46,094 WARN L197 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 261 DAG size of output: 230 [2020-12-22 19:41:48,276 WARN L197 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 300 DAG size of output: 270 [2020-12-22 19:41:50,538 WARN L197 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 295 DAG size of output: 265 [2020-12-22 19:41:52,768 WARN L197 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 274 DAG size of output: 243 [2020-12-22 19:41:54,652 WARN L197 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 237 DAG size of output: 206 [2020-12-22 19:41:55,234 WARN L197 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2020-12-22 19:41:57,333 WARN L197 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 232 DAG size of output: 201 [2020-12-22 19:41:58,112 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-12-22 19:42:00,059 WARN L197 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2020-12-22 19:42:00,566 WARN L197 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 114 [2020-12-22 19:42:00,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:42:00,933 INFO L93 Difference]: Finished difference Result 647 states and 797 transitions. [2020-12-22 19:42:00,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-12-22 19:42:00,935 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 61 [2020-12-22 19:42:00,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:42:00,937 INFO L225 Difference]: With dead ends: 647 [2020-12-22 19:42:00,937 INFO L226 Difference]: Without dead ends: 647 [2020-12-22 19:42:00,940 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1251 ImplicationChecksByTransitivity, 48.4s TimeCoverageRelationStatistics Valid=1523, Invalid=5959, Unknown=0, NotChecked=0, Total=7482 [2020-12-22 19:42:00,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2020-12-22 19:42:00,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 414. [2020-12-22 19:42:00,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2020-12-22 19:42:00,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 519 transitions. [2020-12-22 19:42:00,949 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 519 transitions. Word has length 61 [2020-12-22 19:42:00,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:42:00,949 INFO L481 AbstractCegarLoop]: Abstraction has 414 states and 519 transitions. [2020-12-22 19:42:00,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-12-22 19:42:00,950 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 519 transitions. [2020-12-22 19:42:00,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-22 19:42:00,950 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:42:00,951 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:42:01,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:42:01,166 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-22 19:42:01,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:42:01,167 INFO L82 PathProgramCache]: Analyzing trace with hash 577135007, now seen corresponding path program 1 times [2020-12-22 19:42:01,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:42:01,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329707622] [2020-12-22 19:42:01,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:42:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:42:03,118 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 23 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-12-22 19:42:03,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329707622] [2020-12-22 19:42:03,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736846638] [2020-12-22 19:42:03,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:42:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:42:03,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 106 conjunts are in the unsatisfiable core [2020-12-22 19:42:03,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:42:03,256 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-22 19:42:03,257 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:42:03,262 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:03,263 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:42:03,264 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-22 19:42:03,342 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:03,343 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-22 19:42:03,344 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:42:03,355 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:42:03,367 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:03,368 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:42:03,369 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2020-12-22 19:42:03,461 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-22 19:42:03,463 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:42:03,489 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:03,495 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-22 19:42:03,496 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:42:03,520 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:03,521 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:42:03,522 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:34 [2020-12-22 19:42:03,852 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:03,853 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-22 19:42:03,854 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:42:03,856 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:42:03,889 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:03,895 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-12-22 19:42:03,897 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:42:03,931 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:03,932 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:42:03,932 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:51, output treesize:44 [2020-12-22 19:42:04,070 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-22 19:42:04,071 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:42:04,120 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:04,128 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-22 19:42:04,129 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:42:04,181 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:04,183 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:42:04,183 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:69, output treesize:67 [2020-12-22 19:42:04,839 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:04,840 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 51 [2020-12-22 19:42:04,841 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:42:04,842 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:42:04,965 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-12-22 19:42:04,965 INFO L625 ElimStorePlain]: treesize reduction 29, result has 75.4 percent of original size [2020-12-22 19:42:05,004 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:05,004 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 58 [2020-12-22 19:42:05,007 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:42:05,009 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:42:05,009 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:42:05,154 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-12-22 19:42:05,155 INFO L625 ElimStorePlain]: treesize reduction 18, result has 83.3 percent of original size [2020-12-22 19:42:05,158 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:42:05,160 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:42:05,160 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:93, output treesize:144 [2020-12-22 19:42:05,169 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:42:05,355 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:42:05,526 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:42:05,528 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:42:05,530 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:42:05,531 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 19:42:05,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:42:05,588 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:05,589 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 82 [2020-12-22 19:42:05,591 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:42:05,592 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:42:05,595 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:42:05,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:42:05,645 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:05,645 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 135 treesize of output 156 [2020-12-22 19:42:05,648 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:42:05,649 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-22 19:42:05,653 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:42:05,838 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 48 [2020-12-22 19:42:05,839 INFO L625 ElimStorePlain]: treesize reduction 241, result has 41.6 percent of original size [2020-12-22 19:42:05,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:42:05,847 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:42:05,864 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:05,865 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 128 treesize of output 99 [2020-12-22 19:42:05,867 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:42:05,870 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:42:05,871 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:42:06,006 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-12-22 19:42:06,007 INFO L625 ElimStorePlain]: treesize reduction 30, result has 83.2 percent of original size [2020-12-22 19:42:06,009 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:42:06,010 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:42:06,010 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:325, output treesize:149 [2020-12-22 19:42:06,012 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:42:06,237 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:42:06,721 WARN L197 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2020-12-22 19:42:07,031 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-12-22 19:42:07,039 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:42:07,041 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:42:07,043 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:42:07,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:42:07,116 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:07,116 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 142 treesize of output 177 [2020-12-22 19:42:07,120 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:42:07,120 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-22 19:42:07,121 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-22 19:42:07,125 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:42:07,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:42:07,140 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2020-12-22 19:42:07,142 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:42:07,497 WARN L197 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2020-12-22 19:42:07,498 INFO L625 ElimStorePlain]: treesize reduction 109, result has 72.1 percent of original size [2020-12-22 19:42:07,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:42:07,535 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:42:07,561 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:07,561 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 110 [2020-12-22 19:42:07,563 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:42:07,564 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:42:07,566 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:42:07,568 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:42:07,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:42:07,582 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 32 [2020-12-22 19:42:07,584 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-22 19:42:07,896 WARN L197 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-12-22 19:42:07,896 INFO L625 ElimStorePlain]: treesize reduction 50, result has 81.4 percent of original size [2020-12-22 19:42:07,900 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-12-22 19:42:07,900 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:304, output treesize:248 [2020-12-22 19:42:08,578 WARN L197 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-12-22 19:42:08,928 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-12-22 19:42:09,275 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-12-22 19:42:09,285 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:42:09,290 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:42:09,297 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 17, 1] term [2020-12-22 19:42:09,297 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:42:09,314 INFO L443 ElimStorePlain]: Different costs {6=[v_prenex_1], 12=[v_prenex_4, |v_#memory_$Pointer$.offset_44|], 20=[|v_#memory_$Pointer$.base_48|]} [2020-12-22 19:42:09,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:42:09,333 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2020-12-22 19:42:09,335 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:42:09,507 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-12-22 19:42:09,507 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:09,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:42:09,528 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 42 [2020-12-22 19:42:09,530 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:42:09,684 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-12-22 19:42:09,684 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:09,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:42:09,756 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:09,757 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 142 treesize of output 184 [2020-12-22 19:42:09,760 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 19:42:09,761 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-22 19:42:09,762 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:42:09,770 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 19:42:10,115 WARN L197 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 83 [2020-12-22 19:42:10,116 INFO L625 ElimStorePlain]: treesize reduction 391, result has 39.9 percent of original size [2020-12-22 19:42:10,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:42:10,135 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:42:10,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:42:10,142 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:42:10,168 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:10,169 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 127 treesize of output 119 [2020-12-22 19:42:10,171 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:42:10,172 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:42:10,172 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:42:10,175 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:42:10,437 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2020-12-22 19:42:10,438 INFO L625 ElimStorePlain]: treesize reduction 64, result has 80.2 percent of original size [2020-12-22 19:42:10,443 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-12-22 19:42:10,443 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 9 variables, input treesize:306, output treesize:435 [2020-12-22 19:42:10,748 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-12-22 19:42:10,914 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 14, 1] term [2020-12-22 19:42:10,915 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:42:11,553 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:42:12,190 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:42:12,200 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:42:12,210 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:42:12,220 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:42:12,231 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:42:12,250 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:42:12,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:42:12,281 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:42:12,316 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:12,317 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 181 treesize of output 150 [2020-12-22 19:42:12,320 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 19:42:12,321 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 19:42:12,322 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 19:42:12,323 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 19:42:12,325 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 19:42:12,326 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 19:42:12,330 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:42:12,331 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:42:12,332 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:42:12,333 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:42:12,538 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2020-12-22 19:42:12,539 INFO L625 ElimStorePlain]: treesize reduction 43, result has 91.4 percent of original size [2020-12-22 19:42:12,565 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:12,565 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 54 [2020-12-22 19:42:12,568 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:42:12,569 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:42:12,570 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:42:12,572 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-22 19:42:12,573 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:42:12,573 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:42:12,576 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:42:12,578 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:42:12,581 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-22 19:42:12,591 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-22 19:42:12,592 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:42:12,595 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: and 2 xjuncts. [2020-12-22 19:42:12,766 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2020-12-22 19:42:12,767 INFO L625 ElimStorePlain]: treesize reduction 18, result has 95.6 percent of original size [2020-12-22 19:42:12,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:42:12,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:42:12,776 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:42:12,812 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:12,813 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 350 treesize of output 185 [2020-12-22 19:42:12,819 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 19:42:12,820 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:42:12,821 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:42:12,822 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:42:12,824 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 19:42:12,825 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 19:42:12,825 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 19:42:12,826 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:42:12,828 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:42:12,829 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:42:12,831 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 19:42:12,832 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:42:12,833 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:42:12,835 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:42:12,837 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 13 disjuncts [2020-12-22 19:42:12,838 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:42:12,839 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:42:12,840 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:42:12,842 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 19:42:12,843 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 19:42:12,843 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:42:12,845 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:42:12,847 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:42:12,849 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 13 disjuncts [2020-12-22 19:42:12,850 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:42:12,851 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 19:42:12,852 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:42:12,853 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-22 19:42:12,855 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:42:12,856 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-22 19:42:12,860 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 19:42:12,862 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-22 19:42:12,875 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:42:12,877 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 19:42:12,878 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:42:12,880 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-22 19:42:12,882 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 19:42:12,884 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-22 19:42:12,889 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 19:42:12,891 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-22 19:42:12,895 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:42:12,897 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:42:12,897 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:42:12,899 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-22 19:42:12,900 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:42:12,902 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:42:12,904 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:42:12,905 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 19:42:12,910 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:42:12,910 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:42:12,911 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:42:12,913 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:42:12,914 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:42:12,915 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:42:12,917 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:42:12,917 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 19:42:12,918 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:42:12,919 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:42:12,921 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:42:12,922 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-22 19:42:12,924 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:42:12,925 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:42:12,926 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:42:12,927 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 19:42:12,928 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:42:12,929 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:42:12,931 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:42:12,932 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2020-12-22 19:42:12,934 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:42:12,935 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:42:12,937 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 19:42:12,941 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:42:12,942 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:42:12,943 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 19:42:12,948 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:42:12,950 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:42:12,951 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 19:42:12,956 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:42:12,957 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:42:12,958 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:42:12,962 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:42:12,963 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:42:12,964 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:42:12,965 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:42:12,966 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:42:12,968 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:42:12,969 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 19:42:12,970 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:42:12,971 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:42:12,973 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 19:42:12,977 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:42:12,979 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:42:12,980 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 19:42:12,984 INFO L547 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:42:13,138 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-12-22 19:42:13,139 INFO L625 ElimStorePlain]: treesize reduction 44, result has 77.8 percent of original size [2020-12-22 19:42:13,161 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:13,161 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 41 [2020-12-22 19:42:13,164 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-22 19:42:13,214 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:42:13,218 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 4 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2020-12-22 19:42:13,219 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:569, output treesize:48 [2020-12-22 19:42:13,808 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 10 proven. 18 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-12-22 19:42:13,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:42:13,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 26] total 48 [2020-12-22 19:42:13,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098245195] [2020-12-22 19:42:13,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 49 states [2020-12-22 19:42:13,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:42:13,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2020-12-22 19:42:13,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=2219, Unknown=0, NotChecked=0, Total=2352 [2020-12-22 19:42:13,811 INFO L87 Difference]: Start difference. First operand 414 states and 519 transitions. Second operand 49 states. [2020-12-22 19:42:14,681 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2020-12-22 19:42:14,932 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2020-12-22 19:42:15,325 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2020-12-22 19:42:15,766 WARN L197 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 72 [2020-12-22 19:42:16,124 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2020-12-22 19:42:16,632 WARN L197 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 74 [2020-12-22 19:42:17,297 WARN L197 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 92 [2020-12-22 19:42:18,122 WARN L197 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 110 [2020-12-22 19:42:19,636 WARN L197 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 209 DAG size of output: 145 [2020-12-22 19:42:20,714 WARN L197 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 126 [2020-12-22 19:42:21,526 WARN L197 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 120 [2020-12-22 19:42:22,880 WARN L197 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 204 DAG size of output: 160 [2020-12-22 19:42:25,880 WARN L197 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 287 DAG size of output: 219 [2020-12-22 19:42:28,782 WARN L197 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 290 DAG size of output: 211 [2020-12-22 19:42:31,514 WARN L197 SmtUtils]: Spent 2.45 s on a formula simplification. DAG size of input: 290 DAG size of output: 215 [2020-12-22 19:42:33,805 WARN L197 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 251 DAG size of output: 201 [2020-12-22 19:42:38,368 WARN L197 SmtUtils]: Spent 4.17 s on a formula simplification. DAG size of input: 331 DAG size of output: 263 [2020-12-22 19:42:39,123 WARN L197 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 96 [2020-12-22 19:42:39,705 WARN L197 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-12-22 19:42:40,331 WARN L197 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2020-12-22 19:42:51,878 WARN L197 SmtUtils]: Spent 10.97 s on a formula simplification. DAG size of input: 399 DAG size of output: 331 [2020-12-22 19:43:02,521 WARN L197 SmtUtils]: Spent 10.16 s on a formula simplification. DAG size of input: 399 DAG size of output: 331 [2020-12-22 19:43:21,409 WARN L197 SmtUtils]: Spent 18.21 s on a formula simplification. DAG size of input: 410 DAG size of output: 342 [2020-12-22 19:43:52,497 WARN L197 SmtUtils]: Spent 30.53 s on a formula simplification. DAG size of input: 421 DAG size of output: 353 [2020-12-22 19:44:20,487 WARN L197 SmtUtils]: Spent 27.37 s on a formula simplification. DAG size of input: 433 DAG size of output: 343