/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-properties/alternating_list-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 19:25:57,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 19:25:57,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 19:25:57,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 19:25:57,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 19:25:57,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 19:25:57,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 19:25:57,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 19:25:57,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 19:25:57,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 19:25:57,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 19:25:57,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 19:25:57,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 19:25:57,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 19:25:57,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 19:25:57,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 19:25:57,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 19:25:57,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 19:25:57,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 19:25:57,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 19:25:57,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 19:25:57,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 19:25:57,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 19:25:57,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 19:25:57,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 19:25:57,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 19:25:57,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 19:25:57,827 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 19:25:57,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 19:25:57,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 19:25:57,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 19:25:57,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 19:25:57,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 19:25:57,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 19:25:57,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 19:25:57,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 19:25:57,844 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-12-22 19:25:57,897 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 19:25:57,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 19:25:57,900 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 19:25:57,900 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 19:25:57,901 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 19:25:57,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 19:25:57,902 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-22 19:25:57,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 19:25:57,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 19:25:57,903 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-22 19:25:57,904 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-22 19:25:57,904 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-22 19:25:57,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 19:25:57,904 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-22 19:25:57,905 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 19:25:57,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 19:25:57,905 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 19:25:57,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 19:25:57,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 19:25:57,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 19:25:57,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 19:25:57,906 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 19:25:57,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 19:25:57,907 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 19:25:57,907 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 19:25:58,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 19:25:58,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 19:25:58,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 19:25:58,422 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 19:25:58,422 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 19:25:58,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/alternating_list-1.i [2020-12-22 19:25:58,512 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6725084d/daa2c42d99624009bd45808afe59b48e/FLAG332076fe9 [2020-12-22 19:25:59,306 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 19:25:59,307 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/alternating_list-1.i [2020-12-22 19:25:59,325 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6725084d/daa2c42d99624009bd45808afe59b48e/FLAG332076fe9 [2020-12-22 19:25:59,551 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6725084d/daa2c42d99624009bd45808afe59b48e [2020-12-22 19:25:59,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 19:25:59,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 19:25:59,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 19:25:59,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 19:25:59,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 19:25:59,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:25:59" (1/1) ... [2020-12-22 19:25:59,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@93f47a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:25:59, skipping insertion in model container [2020-12-22 19:25:59,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:25:59" (1/1) ... [2020-12-22 19:25:59,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 19:25:59,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 19:26:00,035 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-properties/alternating_list-1.i[23574,23587] [2020-12-22 19:26:00,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 19:26:00,056 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 19:26:00,149 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-properties/alternating_list-1.i[23574,23587] [2020-12-22 19:26:00,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 19:26:00,239 INFO L208 MainTranslator]: Completed translation [2020-12-22 19:26:00,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:26:00 WrapperNode [2020-12-22 19:26:00,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 19:26:00,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 19:26:00,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 19:26:00,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 19:26:00,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:26:00" (1/1) ... [2020-12-22 19:26:00,267 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:26:00" (1/1) ... [2020-12-22 19:26:00,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 19:26:00,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 19:26:00,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 19:26:00,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 19:26:00,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:26:00" (1/1) ... [2020-12-22 19:26:00,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:26:00" (1/1) ... [2020-12-22 19:26:00,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:26:00" (1/1) ... [2020-12-22 19:26:00,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:26:00" (1/1) ... [2020-12-22 19:26:00,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:26:00" (1/1) ... [2020-12-22 19:26:00,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:26:00" (1/1) ... [2020-12-22 19:26:00,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:26:00" (1/1) ... [2020-12-22 19:26:00,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 19:26:00,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 19:26:00,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 19:26:00,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 19:26:00,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:26:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 19:26:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 19:26:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 19:26:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 19:26:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 19:26:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 19:26:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 19:26:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 19:26:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 19:26:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 19:26:00,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 19:26:01,109 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 19:26:01,109 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2020-12-22 19:26:01,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:26:01 BoogieIcfgContainer [2020-12-22 19:26:01,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 19:26:01,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 19:26:01,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 19:26:01,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 19:26:01,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 07:25:59" (1/3) ... [2020-12-22 19:26:01,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57979183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:26:01, skipping insertion in model container [2020-12-22 19:26:01,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:26:00" (2/3) ... [2020-12-22 19:26:01,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57979183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:26:01, skipping insertion in model container [2020-12-22 19:26:01,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:26:01" (3/3) ... [2020-12-22 19:26:01,121 INFO L111 eAbstractionObserver]: Analyzing ICFG alternating_list-1.i [2020-12-22 19:26:01,128 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 19:26:01,134 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 30 error locations. [2020-12-22 19:26:01,155 INFO L253 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2020-12-22 19:26:01,179 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 19:26:01,179 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-22 19:26:01,180 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 19:26:01,180 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 19:26:01,180 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 19:26:01,180 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 19:26:01,180 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 19:26:01,180 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 19:26:01,199 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-12-22 19:26:01,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-22 19:26:01,206 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:01,206 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-22 19:26:01,207 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:01,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:01,214 INFO L82 PathProgramCache]: Analyzing trace with hash 889600296, now seen corresponding path program 1 times [2020-12-22 19:26:01,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:01,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523328009] [2020-12-22 19:26:01,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:01,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:01,381 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 19:26:01,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523328009] [2020-12-22 19:26:01,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:26:01,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:26:01,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279228312] [2020-12-22 19:26:01,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 19:26:01,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:01,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 19:26:01,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 19:26:01,407 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 2 states. [2020-12-22 19:26:01,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:01,425 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2020-12-22 19:26:01,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 19:26:01,427 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-22 19:26:01,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:01,436 INFO L225 Difference]: With dead ends: 74 [2020-12-22 19:26:01,436 INFO L226 Difference]: Without dead ends: 70 [2020-12-22 19:26:01,438 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 19:26:01,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-12-22 19:26:01,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-12-22 19:26:01,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-12-22 19:26:01,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 75 transitions. [2020-12-22 19:26:01,478 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 75 transitions. Word has length 6 [2020-12-22 19:26:01,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:01,478 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 75 transitions. [2020-12-22 19:26:01,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 19:26:01,479 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 75 transitions. [2020-12-22 19:26:01,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 19:26:01,479 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:01,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:01,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 19:26:01,480 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:01,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:01,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1807769742, now seen corresponding path program 1 times [2020-12-22 19:26:01,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:01,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173130015] [2020-12-22 19:26:01,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:01,551 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 19:26:01,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173130015] [2020-12-22 19:26:01,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:26:01,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:26:01,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881190571] [2020-12-22 19:26:01,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:26:01,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:01,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:26:01,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:26:01,556 INFO L87 Difference]: Start difference. First operand 70 states and 75 transitions. Second operand 4 states. [2020-12-22 19:26:01,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:01,813 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2020-12-22 19:26:01,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:26:01,815 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-22 19:26:01,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:01,818 INFO L225 Difference]: With dead ends: 91 [2020-12-22 19:26:01,818 INFO L226 Difference]: Without dead ends: 91 [2020-12-22 19:26:01,819 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:26:01,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-12-22 19:26:01,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 71. [2020-12-22 19:26:01,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-12-22 19:26:01,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 83 transitions. [2020-12-22 19:26:01,830 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 83 transitions. Word has length 7 [2020-12-22 19:26:01,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:01,830 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 83 transitions. [2020-12-22 19:26:01,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:26:01,830 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 83 transitions. [2020-12-22 19:26:01,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 19:26:01,831 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:01,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:01,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 19:26:01,832 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:01,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:01,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1807769743, now seen corresponding path program 1 times [2020-12-22 19:26:01,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:01,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532429177] [2020-12-22 19:26:01,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:01,916 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 19:26:01,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532429177] [2020-12-22 19:26:01,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:26:01,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:26:01,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952430804] [2020-12-22 19:26:01,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:26:01,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:01,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:26:01,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:26:01,920 INFO L87 Difference]: Start difference. First operand 71 states and 83 transitions. Second operand 4 states. [2020-12-22 19:26:02,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:02,179 INFO L93 Difference]: Finished difference Result 99 states and 109 transitions. [2020-12-22 19:26:02,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:26:02,180 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-22 19:26:02,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:02,181 INFO L225 Difference]: With dead ends: 99 [2020-12-22 19:26:02,182 INFO L226 Difference]: Without dead ends: 99 [2020-12-22 19:26:02,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:26:02,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-12-22 19:26:02,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 87. [2020-12-22 19:26:02,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-12-22 19:26:02,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2020-12-22 19:26:02,192 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 7 [2020-12-22 19:26:02,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:02,193 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2020-12-22 19:26:02,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:26:02,193 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2020-12-22 19:26:02,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 19:26:02,194 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:02,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:02,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 19:26:02,195 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:02,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:02,196 INFO L82 PathProgramCache]: Analyzing trace with hash -2106443233, now seen corresponding path program 1 times [2020-12-22 19:26:02,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:02,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016124755] [2020-12-22 19:26:02,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:02,293 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 19:26:02,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016124755] [2020-12-22 19:26:02,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:26:02,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:26:02,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533168708] [2020-12-22 19:26:02,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:26:02,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:02,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:26:02,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:26:02,299 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand 3 states. [2020-12-22 19:26:02,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:02,331 INFO L93 Difference]: Finished difference Result 136 states and 147 transitions. [2020-12-22 19:26:02,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:26:02,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-12-22 19:26:02,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:02,338 INFO L225 Difference]: With dead ends: 136 [2020-12-22 19:26:02,338 INFO L226 Difference]: Without dead ends: 136 [2020-12-22 19:26:02,339 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 19:26:02,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-12-22 19:26:02,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 96. [2020-12-22 19:26:02,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-12-22 19:26:02,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 112 transitions. [2020-12-22 19:26:02,363 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 112 transitions. Word has length 14 [2020-12-22 19:26:02,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:02,364 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 112 transitions. [2020-12-22 19:26:02,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:26:02,364 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 112 transitions. [2020-12-22 19:26:02,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 19:26:02,365 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:02,365 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:02,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 19:26:02,366 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:02,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:02,367 INFO L82 PathProgramCache]: Analyzing trace with hash -2106751063, now seen corresponding path program 1 times [2020-12-22 19:26:02,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:02,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425834630] [2020-12-22 19:26:02,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:02,462 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 19:26:02,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425834630] [2020-12-22 19:26:02,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:26:02,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 19:26:02,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504182844] [2020-12-22 19:26:02,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 19:26:02,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:02,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 19:26:02,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:26:02,465 INFO L87 Difference]: Start difference. First operand 96 states and 112 transitions. Second operand 6 states. [2020-12-22 19:26:02,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:02,808 INFO L93 Difference]: Finished difference Result 141 states and 155 transitions. [2020-12-22 19:26:02,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 19:26:02,809 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-22 19:26:02,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:02,811 INFO L225 Difference]: With dead ends: 141 [2020-12-22 19:26:02,811 INFO L226 Difference]: Without dead ends: 141 [2020-12-22 19:26:02,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:26:02,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-12-22 19:26:02,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 99. [2020-12-22 19:26:02,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-12-22 19:26:02,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 115 transitions. [2020-12-22 19:26:02,820 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 115 transitions. Word has length 14 [2020-12-22 19:26:02,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:02,821 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 115 transitions. [2020-12-22 19:26:02,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 19:26:02,821 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 115 transitions. [2020-12-22 19:26:02,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 19:26:02,822 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:02,822 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:02,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 19:26:02,823 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:02,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:02,824 INFO L82 PathProgramCache]: Analyzing trace with hash -916143496, now seen corresponding path program 1 times [2020-12-22 19:26:02,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:02,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569097762] [2020-12-22 19:26:02,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:02,906 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 19:26:02,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569097762] [2020-12-22 19:26:02,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:26:02,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:26:02,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151883644] [2020-12-22 19:26:02,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:26:02,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:02,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:26:02,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:26:02,910 INFO L87 Difference]: Start difference. First operand 99 states and 115 transitions. Second operand 4 states. [2020-12-22 19:26:03,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:03,026 INFO L93 Difference]: Finished difference Result 106 states and 121 transitions. [2020-12-22 19:26:03,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:26:03,027 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-12-22 19:26:03,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:03,028 INFO L225 Difference]: With dead ends: 106 [2020-12-22 19:26:03,029 INFO L226 Difference]: Without dead ends: 106 [2020-12-22 19:26:03,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:26:03,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-12-22 19:26:03,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 100. [2020-12-22 19:26:03,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-12-22 19:26:03,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 116 transitions. [2020-12-22 19:26:03,049 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 116 transitions. Word has length 15 [2020-12-22 19:26:03,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:03,049 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 116 transitions. [2020-12-22 19:26:03,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:26:03,049 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 116 transitions. [2020-12-22 19:26:03,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 19:26:03,050 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:03,050 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:03,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 19:26:03,051 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:03,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:03,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1664368567, now seen corresponding path program 1 times [2020-12-22 19:26:03,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:03,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919062061] [2020-12-22 19:26:03,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:03,119 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 19:26:03,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919062061] [2020-12-22 19:26:03,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:26:03,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 19:26:03,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518320409] [2020-12-22 19:26:03,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 19:26:03,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:03,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 19:26:03,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:26:03,123 INFO L87 Difference]: Start difference. First operand 100 states and 116 transitions. Second operand 7 states. [2020-12-22 19:26:03,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:03,370 INFO L93 Difference]: Finished difference Result 116 states and 129 transitions. [2020-12-22 19:26:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 19:26:03,371 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-12-22 19:26:03,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:03,372 INFO L225 Difference]: With dead ends: 116 [2020-12-22 19:26:03,372 INFO L226 Difference]: Without dead ends: 116 [2020-12-22 19:26:03,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:26:03,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-12-22 19:26:03,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 103. [2020-12-22 19:26:03,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-12-22 19:26:03,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 119 transitions. [2020-12-22 19:26:03,384 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 119 transitions. Word has length 16 [2020-12-22 19:26:03,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:03,385 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 119 transitions. [2020-12-22 19:26:03,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 19:26:03,385 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 119 transitions. [2020-12-22 19:26:03,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 19:26:03,386 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:03,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:03,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 19:26:03,387 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:03,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:03,388 INFO L82 PathProgramCache]: Analyzing trace with hash 54401118, now seen corresponding path program 1 times [2020-12-22 19:26:03,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:03,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731042047] [2020-12-22 19:26:03,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:03,505 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 19:26:03,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731042047] [2020-12-22 19:26:03,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:26:03,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:26:03,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889322806] [2020-12-22 19:26:03,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:26:03,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:03,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:26:03,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:26:03,507 INFO L87 Difference]: Start difference. First operand 103 states and 119 transitions. Second operand 5 states. [2020-12-22 19:26:03,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:03,662 INFO L93 Difference]: Finished difference Result 110 states and 125 transitions. [2020-12-22 19:26:03,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:26:03,662 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-12-22 19:26:03,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:03,663 INFO L225 Difference]: With dead ends: 110 [2020-12-22 19:26:03,664 INFO L226 Difference]: Without dead ends: 99 [2020-12-22 19:26:03,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 19:26:03,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-12-22 19:26:03,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-12-22 19:26:03,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-12-22 19:26:03,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 114 transitions. [2020-12-22 19:26:03,667 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 114 transitions. Word has length 17 [2020-12-22 19:26:03,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:03,668 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 114 transitions. [2020-12-22 19:26:03,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:26:03,668 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 114 transitions. [2020-12-22 19:26:03,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 19:26:03,669 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:03,669 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:03,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 19:26:03,669 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:03,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:03,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1609090789, now seen corresponding path program 1 times [2020-12-22 19:26:03,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:03,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886420394] [2020-12-22 19:26:03,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:03,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:03,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886420394] [2020-12-22 19:26:03,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:26:03,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 19:26:03,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327134237] [2020-12-22 19:26:03,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 19:26:03,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:03,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 19:26:03,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:26:03,726 INFO L87 Difference]: Start difference. First operand 99 states and 114 transitions. Second operand 6 states. [2020-12-22 19:26:03,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:03,896 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2020-12-22 19:26:03,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 19:26:03,897 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-22 19:26:03,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:03,899 INFO L225 Difference]: With dead ends: 104 [2020-12-22 19:26:03,899 INFO L226 Difference]: Without dead ends: 104 [2020-12-22 19:26:03,899 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:26:03,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-12-22 19:26:03,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 96. [2020-12-22 19:26:03,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-12-22 19:26:03,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2020-12-22 19:26:03,905 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 17 [2020-12-22 19:26:03,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:03,905 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2020-12-22 19:26:03,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 19:26:03,905 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2020-12-22 19:26:03,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 19:26:03,907 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:03,907 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:03,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 19:26:03,908 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:03,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:03,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1609090788, now seen corresponding path program 1 times [2020-12-22 19:26:03,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:03,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991053205] [2020-12-22 19:26:03,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:04,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:04,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991053205] [2020-12-22 19:26:04,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:26:04,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 19:26:04,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850171283] [2020-12-22 19:26:04,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 19:26:04,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:04,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 19:26:04,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:26:04,054 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 6 states. [2020-12-22 19:26:04,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:04,285 INFO L93 Difference]: Finished difference Result 92 states and 105 transitions. [2020-12-22 19:26:04,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 19:26:04,285 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-22 19:26:04,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:04,286 INFO L225 Difference]: With dead ends: 92 [2020-12-22 19:26:04,286 INFO L226 Difference]: Without dead ends: 92 [2020-12-22 19:26:04,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:26:04,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-12-22 19:26:04,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 84. [2020-12-22 19:26:04,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-12-22 19:26:04,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 97 transitions. [2020-12-22 19:26:04,290 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 97 transitions. Word has length 17 [2020-12-22 19:26:04,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:04,290 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 97 transitions. [2020-12-22 19:26:04,291 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 19:26:04,291 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 97 transitions. [2020-12-22 19:26:04,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 19:26:04,292 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:04,292 INFO L422 BasicCegarLoop]: trace histogram [2, 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 19:26:04,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 19:26:04,292 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:04,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:04,293 INFO L82 PathProgramCache]: Analyzing trace with hash 372860540, now seen corresponding path program 1 times [2020-12-22 19:26:04,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:04,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539620401] [2020-12-22 19:26:04,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:04,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:04,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539620401] [2020-12-22 19:26:04,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777064498] [2020-12-22 19:26:04,457 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 19:26:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:04,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 33 conjunts are in the unsatisfiable core [2020-12-22 19:26:04,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:26:04,691 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-22 19:26:04,692 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:04,708 INFO L625 ElimStorePlain]: treesize reduction 3, result has 85.0 percent of original size [2020-12-22 19:26:04,710 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:04,710 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:17 [2020-12-22 19:26:04,811 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_12|], 2=[|v_#memory_int_15|]} [2020-12-22 19:26:04,816 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:26:04,817 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:04,830 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:04,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:26:04,838 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 27 treesize of output 11 [2020-12-22 19:26:04,840 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:04,850 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:04,851 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:04,852 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:49, output treesize:26 [2020-12-22 19:26:04,902 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-12-22 19:26:04,903 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:04,910 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:04,912 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:04,912 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:14 [2020-12-22 19:26:04,995 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:04,996 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 34 [2020-12-22 19:26:04,999 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:05,019 INFO L625 ElimStorePlain]: treesize reduction 12, result has 64.7 percent of original size [2020-12-22 19:26:05,022 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:05,025 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 19:26:05,025 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:22 [2020-12-22 19:26:05,027 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:05,074 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:05,200 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-12-22 19:26:05,201 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:05,276 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:05,277 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 18 [2020-12-22 19:26:05,279 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:05,283 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:05,286 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:05,286 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:3 [2020-12-22 19:26:05,291 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:05,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:26:05,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 24 [2020-12-22 19:26:05,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126990457] [2020-12-22 19:26:05,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-22 19:26:05,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:05,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-22 19:26:05,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2020-12-22 19:26:05,294 INFO L87 Difference]: Start difference. First operand 84 states and 97 transitions. Second operand 24 states. [2020-12-22 19:26:08,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:08,096 INFO L93 Difference]: Finished difference Result 266 states and 281 transitions. [2020-12-22 19:26:08,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-12-22 19:26:08,097 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 24 [2020-12-22 19:26:08,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:08,101 INFO L225 Difference]: With dead ends: 266 [2020-12-22 19:26:08,101 INFO L226 Difference]: Without dead ends: 266 [2020-12-22 19:26:08,103 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=495, Invalid=2261, Unknown=0, NotChecked=0, Total=2756 [2020-12-22 19:26:08,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-12-22 19:26:08,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 101. [2020-12-22 19:26:08,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-12-22 19:26:08,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2020-12-22 19:26:08,110 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 24 [2020-12-22 19:26:08,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:08,111 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2020-12-22 19:26:08,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-12-22 19:26:08,112 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2020-12-22 19:26:08,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 19:26:08,115 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:08,115 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 19:26:08,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-12-22 19:26:08,330 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:08,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:08,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1836717490, now seen corresponding path program 1 times [2020-12-22 19:26:08,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:08,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403089202] [2020-12-22 19:26:08,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:08,610 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:08,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403089202] [2020-12-22 19:26:08,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686843902] [2020-12-22 19:26:08,611 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 19:26:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:08,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 38 conjunts are in the unsatisfiable core [2020-12-22 19:26:08,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:26:08,836 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 19:26:08,837 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:08,852 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:08,853 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:08,853 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:18 [2020-12-22 19:26:08,920 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:26:08,922 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:08,938 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:08,944 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:26:08,945 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:08,958 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:08,961 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:08,961 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:30 [2020-12-22 19:26:09,032 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-22 19:26:09,033 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:09,040 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:09,040 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:09,041 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:16 [2020-12-22 19:26:09,112 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-22 19:26:09,113 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:09,121 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:09,125 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 25 treesize of output 13 [2020-12-22 19:26:09,128 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:09,134 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:09,135 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 19:26:09,135 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:39, output treesize:20 [2020-12-22 19:26:09,231 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:09,231 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2020-12-22 19:26:09,233 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-22 19:26:09,242 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:09,247 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 19:26:09,248 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:13 [2020-12-22 19:26:09,272 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2020-12-22 19:26:09,274 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:09,276 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:09,276 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 19:26:09,276 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:5 [2020-12-22 19:26:09,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:09,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:26:09,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-12-22 19:26:09,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8966696] [2020-12-22 19:26:09,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-12-22 19:26:09,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:09,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-12-22 19:26:09,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2020-12-22 19:26:09,286 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand 22 states. [2020-12-22 19:26:10,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:10,922 INFO L93 Difference]: Finished difference Result 231 states and 248 transitions. [2020-12-22 19:26:10,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-12-22 19:26:10,923 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 26 [2020-12-22 19:26:10,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:10,924 INFO L225 Difference]: With dead ends: 231 [2020-12-22 19:26:10,925 INFO L226 Difference]: Without dead ends: 231 [2020-12-22 19:26:10,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=367, Invalid=1525, Unknown=0, NotChecked=0, Total=1892 [2020-12-22 19:26:10,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-12-22 19:26:10,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 104. [2020-12-22 19:26:10,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-12-22 19:26:10,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 119 transitions. [2020-12-22 19:26:10,931 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 119 transitions. Word has length 26 [2020-12-22 19:26:10,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:10,931 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 119 transitions. [2020-12-22 19:26:10,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-12-22 19:26:10,931 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 119 transitions. [2020-12-22 19:26:10,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 19:26:10,932 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:10,932 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 19:26:11,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-12-22 19:26:11,146 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:11,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:11,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1836717491, now seen corresponding path program 1 times [2020-12-22 19:26:11,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:11,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418043794] [2020-12-22 19:26:11,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:11,480 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:11,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418043794] [2020-12-22 19:26:11,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505542850] [2020-12-22 19:26:11,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:26:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:11,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 48 conjunts are in the unsatisfiable core [2020-12-22 19:26:11,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:26:11,635 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 19:26:11,636 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:11,644 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:11,645 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:11,646 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:18 [2020-12-22 19:26:11,685 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:26:11,686 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:11,698 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:11,703 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:26:11,706 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:11,722 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:11,723 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:11,724 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:30 [2020-12-22 19:26:11,833 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_int_18|], 2=[|v_#memory_$Pointer$.offset_15|, |v_#memory_$Pointer$.base_15|]} [2020-12-22 19:26:11,839 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 15 [2020-12-22 19:26:11,840 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:11,854 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:11,875 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:11,875 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 111 [2020-12-22 19:26:11,879 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:11,889 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:11,894 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 34 [2020-12-22 19:26:11,896 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:11,905 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:11,906 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:11,906 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:113, output treesize:31 [2020-12-22 19:26:11,987 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:11,988 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2020-12-22 19:26:11,990 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-22 19:26:11,999 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:12,000 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:12,001 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:32 [2020-12-22 19:26:12,097 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2020-12-22 19:26:12,099 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:12,106 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:12,112 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2020-12-22 19:26:12,113 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:12,119 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:12,121 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:12,121 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:39, output treesize:9 [2020-12-22 19:26:12,129 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:12,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:26:12,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 23 [2020-12-22 19:26:12,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281510478] [2020-12-22 19:26:12,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-22 19:26:12,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:12,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-22 19:26:12,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=460, Unknown=0, NotChecked=0, Total=552 [2020-12-22 19:26:12,138 INFO L87 Difference]: Start difference. First operand 104 states and 119 transitions. Second operand 24 states. [2020-12-22 19:26:13,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:13,822 INFO L93 Difference]: Finished difference Result 277 states and 294 transitions. [2020-12-22 19:26:13,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-12-22 19:26:13,822 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 26 [2020-12-22 19:26:13,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:13,824 INFO L225 Difference]: With dead ends: 277 [2020-12-22 19:26:13,825 INFO L226 Difference]: Without dead ends: 277 [2020-12-22 19:26:13,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=330, Invalid=1476, Unknown=0, NotChecked=0, Total=1806 [2020-12-22 19:26:13,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-12-22 19:26:13,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 109. [2020-12-22 19:26:13,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-12-22 19:26:13,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 126 transitions. [2020-12-22 19:26:13,830 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 126 transitions. Word has length 26 [2020-12-22 19:26:13,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:13,831 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 126 transitions. [2020-12-22 19:26:13,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-12-22 19:26:13,831 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 126 transitions. [2020-12-22 19:26:13,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 19:26:13,832 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:13,832 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:14,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-22 19:26:14,046 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:14,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:14,048 INFO L82 PathProgramCache]: Analyzing trace with hash -159834080, now seen corresponding path program 1 times [2020-12-22 19:26:14,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:14,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597356962] [2020-12-22 19:26:14,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:14,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:14,336 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:14,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597356962] [2020-12-22 19:26:14,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714596753] [2020-12-22 19:26:14,337 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 19:26:14,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:14,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 46 conjunts are in the unsatisfiable core [2020-12-22 19:26:14,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:26:14,569 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:26:14,570 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:14,587 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:14,595 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:26:14,596 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:14,613 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:14,615 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:14,615 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:36, output treesize:19 [2020-12-22 19:26:14,766 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_int_19|], 2=[|v_#memory_$Pointer$.base_17|, |v_#memory_$Pointer$.offset_17|]} [2020-12-22 19:26:14,771 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 15 [2020-12-22 19:26:14,771 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:14,785 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:14,788 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 64 [2020-12-22 19:26:14,792 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:14,803 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:14,823 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:14,824 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 84 [2020-12-22 19:26:14,827 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:14,834 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:14,834 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:14,835 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:104, output treesize:22 [2020-12-22 19:26:15,003 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2020-12-22 19:26:15,007 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:15,015 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:15,018 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-22 19:26:15,020 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:15,026 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:15,027 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 19:26:15,028 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:40, output treesize:18 [2020-12-22 19:26:15,126 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:15,126 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 18 [2020-12-22 19:26:15,129 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:15,133 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:15,135 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:15,135 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:3 [2020-12-22 19:26:15,143 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:15,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:26:15,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 27 [2020-12-22 19:26:15,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505107158] [2020-12-22 19:26:15,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-12-22 19:26:15,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:15,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-12-22 19:26:15,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2020-12-22 19:26:15,146 INFO L87 Difference]: Start difference. First operand 109 states and 126 transitions. Second operand 27 states. [2020-12-22 19:26:16,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:16,636 INFO L93 Difference]: Finished difference Result 196 states and 205 transitions. [2020-12-22 19:26:16,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-12-22 19:26:16,637 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 31 [2020-12-22 19:26:16,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:16,638 INFO L225 Difference]: With dead ends: 196 [2020-12-22 19:26:16,638 INFO L226 Difference]: Without dead ends: 196 [2020-12-22 19:26:16,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 464 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=299, Invalid=1771, Unknown=0, NotChecked=0, Total=2070 [2020-12-22 19:26:16,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-12-22 19:26:16,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 105. [2020-12-22 19:26:16,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-12-22 19:26:16,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2020-12-22 19:26:16,643 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 31 [2020-12-22 19:26:16,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:16,644 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2020-12-22 19:26:16,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-12-22 19:26:16,644 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2020-12-22 19:26:16,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 19:26:16,645 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:16,645 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:16,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:26:16,861 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:16,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:16,862 INFO L82 PathProgramCache]: Analyzing trace with hash -249976456, now seen corresponding path program 1 times [2020-12-22 19:26:16,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:16,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122361482] [2020-12-22 19:26:16,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:16,930 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 19:26:16,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122361482] [2020-12-22 19:26:16,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:26:16,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:26:16,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244203585] [2020-12-22 19:26:16,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:26:16,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:16,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:26:16,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:26:16,933 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand 5 states. [2020-12-22 19:26:17,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:17,024 INFO L93 Difference]: Finished difference Result 113 states and 125 transitions. [2020-12-22 19:26:17,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 19:26:17,025 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-12-22 19:26:17,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:17,027 INFO L225 Difference]: With dead ends: 113 [2020-12-22 19:26:17,027 INFO L226 Difference]: Without dead ends: 113 [2020-12-22 19:26:17,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 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 19:26:17,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-12-22 19:26:17,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 107. [2020-12-22 19:26:17,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-12-22 19:26:17,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2020-12-22 19:26:17,034 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 33 [2020-12-22 19:26:17,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:17,035 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2020-12-22 19:26:17,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:26:17,035 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2020-12-22 19:26:17,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-22 19:26:17,036 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:17,036 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:17,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 19:26:17,037 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:17,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:17,037 INFO L82 PathProgramCache]: Analyzing trace with hash 839247549, now seen corresponding path program 1 times [2020-12-22 19:26:17,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:17,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529579964] [2020-12-22 19:26:17,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:17,137 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 19:26:17,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529579964] [2020-12-22 19:26:17,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629506742] [2020-12-22 19:26:17,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:26:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:17,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-22 19:26:17,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:26:17,349 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:17,349 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2020-12-22 19:26:17,351 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-22 19:26:17,357 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:17,358 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 19:26:17,358 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:12 [2020-12-22 19:26:17,418 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:17,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:26:17,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 16 [2020-12-22 19:26:17,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368269778] [2020-12-22 19:26:17,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-22 19:26:17,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:17,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-22 19:26:17,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-12-22 19:26:17,421 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand 16 states. [2020-12-22 19:26:18,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:18,020 INFO L93 Difference]: Finished difference Result 124 states and 136 transitions. [2020-12-22 19:26:18,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 19:26:18,020 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 34 [2020-12-22 19:26:18,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:18,021 INFO L225 Difference]: With dead ends: 124 [2020-12-22 19:26:18,022 INFO L226 Difference]: Without dead ends: 124 [2020-12-22 19:26:18,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2020-12-22 19:26:18,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-12-22 19:26:18,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 107. [2020-12-22 19:26:18,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-12-22 19:26:18,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 120 transitions. [2020-12-22 19:26:18,026 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 120 transitions. Word has length 34 [2020-12-22 19:26:18,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:18,026 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 120 transitions. [2020-12-22 19:26:18,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-22 19:26:18,027 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 120 transitions. [2020-12-22 19:26:18,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-22 19:26:18,027 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:18,027 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:18,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-12-22 19:26:18,237 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:18,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:18,238 INFO L82 PathProgramCache]: Analyzing trace with hash 840664604, now seen corresponding path program 1 times [2020-12-22 19:26:18,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:18,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847935226] [2020-12-22 19:26:18,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:18,294 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 19:26:18,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847935226] [2020-12-22 19:26:18,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:26:18,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:26:18,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184631697] [2020-12-22 19:26:18,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:26:18,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:18,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:26:18,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:26:18,297 INFO L87 Difference]: Start difference. First operand 107 states and 120 transitions. Second operand 5 states. [2020-12-22 19:26:18,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:18,415 INFO L93 Difference]: Finished difference Result 114 states and 125 transitions. [2020-12-22 19:26:18,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 19:26:18,415 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-12-22 19:26:18,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:18,417 INFO L225 Difference]: With dead ends: 114 [2020-12-22 19:26:18,417 INFO L226 Difference]: Without dead ends: 114 [2020-12-22 19:26:18,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 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 19:26:18,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-12-22 19:26:18,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 108. [2020-12-22 19:26:18,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-12-22 19:26:18,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 121 transitions. [2020-12-22 19:26:18,421 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 121 transitions. Word has length 34 [2020-12-22 19:26:18,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:18,421 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 121 transitions. [2020-12-22 19:26:18,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:26:18,422 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 121 transitions. [2020-12-22 19:26:18,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-22 19:26:18,422 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:18,422 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:18,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 19:26:18,423 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:18,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:18,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1278797425, now seen corresponding path program 2 times [2020-12-22 19:26:18,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:18,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789822772] [2020-12-22 19:26:18,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:18,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:18,453 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:18,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789822772] [2020-12-22 19:26:18,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:26:18,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:26:18,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602232815] [2020-12-22 19:26:18,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:26:18,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:18,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:26:18,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:26:18,455 INFO L87 Difference]: Start difference. First operand 108 states and 121 transitions. Second operand 3 states. [2020-12-22 19:26:18,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:18,466 INFO L93 Difference]: Finished difference Result 142 states and 149 transitions. [2020-12-22 19:26:18,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:26:18,466 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-12-22 19:26:18,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:18,467 INFO L225 Difference]: With dead ends: 142 [2020-12-22 19:26:18,467 INFO L226 Difference]: Without dead ends: 142 [2020-12-22 19:26:18,468 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 19:26:18,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-12-22 19:26:18,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 108. [2020-12-22 19:26:18,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-12-22 19:26:18,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 119 transitions. [2020-12-22 19:26:18,471 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 119 transitions. Word has length 34 [2020-12-22 19:26:18,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:18,471 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 119 transitions. [2020-12-22 19:26:18,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:26:18,471 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 119 transitions. [2020-12-22 19:26:18,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-22 19:26:18,472 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:18,472 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:18,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 19:26:18,472 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:18,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:18,473 INFO L82 PathProgramCache]: Analyzing trace with hash 2090388873, now seen corresponding path program 1 times [2020-12-22 19:26:18,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:18,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682079007] [2020-12-22 19:26:18,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:18,764 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:18,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682079007] [2020-12-22 19:26:18,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993718073] [2020-12-22 19:26:18,765 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 19:26:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:18,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 46 conjunts are in the unsatisfiable core [2020-12-22 19:26:18,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:26:18,863 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 19:26:18,864 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:18,869 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:18,870 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:18,870 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-22 19:26:18,932 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-22 19:26:18,933 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:18,956 INFO L625 ElimStorePlain]: treesize reduction 8, result has 73.3 percent of original size [2020-12-22 19:26:18,957 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:18,957 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:22 [2020-12-22 19:26:19,006 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:19,006 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 19:26:19,009 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:19,011 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:19,020 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:19,021 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:19,021 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:21 [2020-12-22 19:26:19,058 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_18|], 2=[|v_#memory_int_21|]} [2020-12-22 19:26:19,063 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 19:26:19,063 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:19,079 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:19,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:26:19,085 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 27 treesize of output 11 [2020-12-22 19:26:19,086 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:19,097 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:19,100 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:19,100 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:53, output treesize:27 [2020-12-22 19:26:19,146 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2020-12-22 19:26:19,147 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:19,153 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:19,154 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:19,154 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:15 [2020-12-22 19:26:19,224 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 19:26:19,226 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:19,233 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:19,234 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:19,234 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:22 [2020-12-22 19:26:19,316 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_18|], 6=[|v_#memory_int_23|]} [2020-12-22 19:26:19,321 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 19:26:19,322 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:19,335 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:19,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:26:19,340 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 34 treesize of output 21 [2020-12-22 19:26:19,341 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:19,351 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:19,352 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:19,353 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:54, output treesize:31 [2020-12-22 19:26:19,399 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 7 [2020-12-22 19:26:19,399 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:19,408 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:19,410 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:26:19,411 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:40, output treesize:25 [2020-12-22 19:26:19,548 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:19,549 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 26 treesize of output 68 [2020-12-22 19:26:19,551 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:19,590 INFO L625 ElimStorePlain]: treesize reduction 28, result has 59.4 percent of original size [2020-12-22 19:26:19,596 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:26:19,597 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:19,598 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:19,601 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:26:19,602 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:19,604 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:19,606 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:26:19,607 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:19,609 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:26:19,610 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 19:26:19,610 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:33, output treesize:37 [2020-12-22 19:26:19,613 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:26:19,614 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:19,615 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:19,618 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:26:19,619 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:19,620 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:19,621 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:26:19,622 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:19,623 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:26:19,681 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:26:19,682 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:19,684 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:19,685 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:26:19,686 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:26:19,688 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:19,897 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-12-22 19:26:19,898 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:20,000 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 22 treesize of output 10 [2020-12-22 19:26:20,002 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:20,006 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:20,007 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:20,007 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:3 [2020-12-22 19:26:20,017 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:20,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:26:20,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 33 [2020-12-22 19:26:20,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092525308] [2020-12-22 19:26:20,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-12-22 19:26:20,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:20,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-12-22 19:26:20,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=935, Unknown=0, NotChecked=0, Total=1056 [2020-12-22 19:26:20,021 INFO L87 Difference]: Start difference. First operand 108 states and 119 transitions. Second operand 33 states. [2020-12-22 19:26:33,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:33,460 INFO L93 Difference]: Finished difference Result 241 states and 248 transitions. [2020-12-22 19:26:33,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-12-22 19:26:33,461 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 34 [2020-12-22 19:26:33,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:33,462 INFO L225 Difference]: With dead ends: 241 [2020-12-22 19:26:33,462 INFO L226 Difference]: Without dead ends: 241 [2020-12-22 19:26:33,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1519 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=724, Invalid=4532, Unknown=0, NotChecked=0, Total=5256 [2020-12-22 19:26:33,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-12-22 19:26:33,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 112. [2020-12-22 19:26:33,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-12-22 19:26:33,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 122 transitions. [2020-12-22 19:26:33,468 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 122 transitions. Word has length 34 [2020-12-22 19:26:33,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:33,468 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 122 transitions. [2020-12-22 19:26:33,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-12-22 19:26:33,468 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 122 transitions. [2020-12-22 19:26:33,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-22 19:26:33,469 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:33,469 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:33,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:26:33,685 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:33,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:33,686 INFO L82 PathProgramCache]: Analyzing trace with hash 290799098, now seen corresponding path program 1 times [2020-12-22 19:26:33,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:33,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230041134] [2020-12-22 19:26:33,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:33,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 19:26:33,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230041134] [2020-12-22 19:26:33,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255192993] [2020-12-22 19:26:33,740 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 19:26:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:33,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-22 19:26:33,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:26:33,842 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 19:26:33,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:26:33,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 6 [2020-12-22 19:26:33,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095940198] [2020-12-22 19:26:33,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 19:26:33,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:33,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 19:26:33,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:26:33,844 INFO L87 Difference]: Start difference. First operand 112 states and 122 transitions. Second operand 7 states. [2020-12-22 19:26:33,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:33,997 INFO L93 Difference]: Finished difference Result 116 states and 125 transitions. [2020-12-22 19:26:33,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 19:26:33,997 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-12-22 19:26:33,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:33,998 INFO L225 Difference]: With dead ends: 116 [2020-12-22 19:26:33,998 INFO L226 Difference]: Without dead ends: 116 [2020-12-22 19:26:33,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:26:33,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-12-22 19:26:34,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 111. [2020-12-22 19:26:34,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-12-22 19:26:34,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2020-12-22 19:26:34,001 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 35 [2020-12-22 19:26:34,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:34,001 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2020-12-22 19:26:34,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 19:26:34,002 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2020-12-22 19:26:34,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-22 19:26:34,002 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:34,002 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:34,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:26:34,207 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:34,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:34,209 INFO L82 PathProgramCache]: Analyzing trace with hash 424837581, now seen corresponding path program 1 times [2020-12-22 19:26:34,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:34,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719051241] [2020-12-22 19:26:34,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:34,503 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:34,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719051241] [2020-12-22 19:26:34,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764293089] [2020-12-22 19:26:34,504 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 19:26:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:34,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 49 conjunts are in the unsatisfiable core [2020-12-22 19:26:34,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:26:34,638 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 19:26:34,639 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:34,647 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:34,648 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:34,648 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:18 [2020-12-22 19:26:34,686 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:26:34,687 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:34,700 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:34,705 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:26:34,706 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:34,720 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:34,721 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:34,721 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:30 [2020-12-22 19:26:34,765 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-22 19:26:34,766 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:34,774 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:34,775 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:34,775 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:23 [2020-12-22 19:26:34,850 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 38 [2020-12-22 19:26:34,851 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:34,859 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:34,862 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 11 [2020-12-22 19:26:34,863 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:34,868 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:34,868 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:34,869 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:59, output treesize:24 [2020-12-22 19:26:34,960 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:34,960 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2020-12-22 19:26:34,962 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-22 19:26:34,970 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:34,971 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:34,971 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:25 [2020-12-22 19:26:35,096 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2020-12-22 19:26:35,099 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:35,104 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:35,105 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:35,105 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:10 [2020-12-22 19:26:35,136 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:35,137 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 16 treesize of output 32 [2020-12-22 19:26:35,138 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:35,147 INFO L625 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2020-12-22 19:26:35,148 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 19:26:35,148 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:11 [2020-12-22 19:26:35,185 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:35,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:26:35,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18] total 28 [2020-12-22 19:26:35,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874037968] [2020-12-22 19:26:35,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-12-22 19:26:35,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:35,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-12-22 19:26:35,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=703, Unknown=0, NotChecked=0, Total=812 [2020-12-22 19:26:35,188 INFO L87 Difference]: Start difference. First operand 111 states and 121 transitions. Second operand 29 states. [2020-12-22 19:26:37,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:37,174 INFO L93 Difference]: Finished difference Result 178 states and 185 transitions. [2020-12-22 19:26:37,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-12-22 19:26:37,175 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 36 [2020-12-22 19:26:37,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:37,176 INFO L225 Difference]: With dead ends: 178 [2020-12-22 19:26:37,176 INFO L226 Difference]: Without dead ends: 178 [2020-12-22 19:26:37,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=401, Invalid=2149, Unknown=0, NotChecked=0, Total=2550 [2020-12-22 19:26:37,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-12-22 19:26:37,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 120. [2020-12-22 19:26:37,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-12-22 19:26:37,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 131 transitions. [2020-12-22 19:26:37,181 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 131 transitions. Word has length 36 [2020-12-22 19:26:37,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:37,182 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 131 transitions. [2020-12-22 19:26:37,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-12-22 19:26:37,182 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 131 transitions. [2020-12-22 19:26:37,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-22 19:26:37,182 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:37,183 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:37,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-12-22 19:26:37,393 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:37,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:37,394 INFO L82 PathProgramCache]: Analyzing trace with hash 424837582, now seen corresponding path program 1 times [2020-12-22 19:26:37,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:37,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463213433] [2020-12-22 19:26:37,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:37,657 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:37,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463213433] [2020-12-22 19:26:37,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007598259] [2020-12-22 19:26:37,657 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 19:26:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:37,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 57 conjunts are in the unsatisfiable core [2020-12-22 19:26:37,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:26:37,799 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 19:26:37,801 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:37,810 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:37,810 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:37,811 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:18 [2020-12-22 19:26:37,851 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:26:37,852 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:37,864 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:37,868 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:26:37,868 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:37,880 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:37,881 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:37,881 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:30 [2020-12-22 19:26:37,917 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-22 19:26:37,918 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:37,923 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:37,923 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:37,924 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:16 [2020-12-22 19:26:37,979 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 25 treesize of output 13 [2020-12-22 19:26:37,980 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:37,987 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:37,990 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-22 19:26:37,991 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:37,997 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:37,998 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 19:26:37,998 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:39, output treesize:20 [2020-12-22 19:26:38,108 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:26:38,111 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:38,112 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2020-12-22 19:26:38,114 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-22 19:26:38,126 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:38,130 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 19:26:38,130 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:33, output treesize:19 [2020-12-22 19:26:38,364 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2020-12-22 19:26:38,365 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:38,372 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:38,375 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2020-12-22 19:26:38,376 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:38,382 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:38,382 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:38,383 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:46, output treesize:16 [2020-12-22 19:26:38,456 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:38,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:26:38,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 29 [2020-12-22 19:26:38,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316660725] [2020-12-22 19:26:38,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-12-22 19:26:38,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:38,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-12-22 19:26:38,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=744, Unknown=0, NotChecked=0, Total=870 [2020-12-22 19:26:38,458 INFO L87 Difference]: Start difference. First operand 120 states and 131 transitions. Second operand 30 states. [2020-12-22 19:26:40,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:40,451 INFO L93 Difference]: Finished difference Result 196 states and 202 transitions. [2020-12-22 19:26:40,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-12-22 19:26:40,454 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 36 [2020-12-22 19:26:40,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:40,456 INFO L225 Difference]: With dead ends: 196 [2020-12-22 19:26:40,456 INFO L226 Difference]: Without dead ends: 196 [2020-12-22 19:26:40,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=378, Invalid=1878, Unknown=0, NotChecked=0, Total=2256 [2020-12-22 19:26:40,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-12-22 19:26:40,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 123. [2020-12-22 19:26:40,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-12-22 19:26:40,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 134 transitions. [2020-12-22 19:26:40,461 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 134 transitions. Word has length 36 [2020-12-22 19:26:40,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:40,461 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 134 transitions. [2020-12-22 19:26:40,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-12-22 19:26:40,461 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 134 transitions. [2020-12-22 19:26:40,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-22 19:26:40,462 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:40,462 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:40,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:26:40,677 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:40,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:40,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1180963457, now seen corresponding path program 1 times [2020-12-22 19:26:40,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:40,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821597049] [2020-12-22 19:26:40,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:40,968 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:40,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821597049] [2020-12-22 19:26:40,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748055616] [2020-12-22 19:26:40,969 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 19:26:41,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:41,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 56 conjunts are in the unsatisfiable core [2020-12-22 19:26:41,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:26:41,055 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 19:26:41,056 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:41,060 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:41,061 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:41,061 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-22 19:26:41,189 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:41,189 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 19:26:41,192 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:41,194 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:41,204 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:41,205 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:41,205 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2020-12-22 19:26:41,252 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 19:26:41,253 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:41,265 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:41,266 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 19:26:41,267 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:36 [2020-12-22 19:26:41,413 INFO L348 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2020-12-22 19:26:41,414 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 46 treesize of output 32 [2020-12-22 19:26:41,416 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:41,426 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:41,427 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:41,427 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:54, output treesize:27 [2020-12-22 19:26:41,502 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:41,502 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 28 treesize of output 99 [2020-12-22 19:26:41,505 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:26:41,506 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:41,510 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:41,526 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:41,527 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:41,527 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:61 [2020-12-22 19:26:41,595 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_21|], 2=[|v_#memory_$Pointer$.base_25|]} [2020-12-22 19:26:41,599 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:26:41,600 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:41,621 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:41,643 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:41,643 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 54 treesize of output 69 [2020-12-22 19:26:41,646 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:41,666 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:41,668 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:41,669 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:84, output treesize:67 [2020-12-22 19:26:41,742 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 31 treesize of output 7 [2020-12-22 19:26:41,743 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:41,765 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:41,767 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 19:26:41,767 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:130, output treesize:103 [2020-12-22 19:26:41,937 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_int_27|], 6=[|v_#memory_$Pointer$.base_26|]} [2020-12-22 19:26:41,942 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 35 treesize of output 19 [2020-12-22 19:26:41,943 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:41,964 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:41,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:26:41,991 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:41,992 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 147 treesize of output 115 [2020-12-22 19:26:41,996 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-22 19:26:41,997 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:26:41,999 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:42,016 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:42,017 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 19:26:42,018 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:171, output treesize:104 [2020-12-22 19:26:42,196 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 27 treesize of output 7 [2020-12-22 19:26:42,199 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:42,213 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:42,215 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 19:26:42,215 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:111, output treesize:85 [2020-12-22 19:26:42,306 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:42,306 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 43 [2020-12-22 19:26:42,311 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 19:26:42,321 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:42,325 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:26:42,325 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:77, output treesize:28 [2020-12-22 19:26:42,457 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:42,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:26:42,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 32 [2020-12-22 19:26:42,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194707937] [2020-12-22 19:26:42,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-12-22 19:26:42,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:42,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-12-22 19:26:42,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=921, Unknown=0, NotChecked=0, Total=1056 [2020-12-22 19:26:42,459 INFO L87 Difference]: Start difference. First operand 123 states and 134 transitions. Second operand 33 states. [2020-12-22 19:26:45,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:45,754 INFO L93 Difference]: Finished difference Result 236 states and 246 transitions. [2020-12-22 19:26:45,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-12-22 19:26:45,754 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 36 [2020-12-22 19:26:45,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:45,755 INFO L225 Difference]: With dead ends: 236 [2020-12-22 19:26:45,756 INFO L226 Difference]: Without dead ends: 236 [2020-12-22 19:26:45,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1015 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=569, Invalid=3091, Unknown=0, NotChecked=0, Total=3660 [2020-12-22 19:26:45,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-12-22 19:26:45,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 143. [2020-12-22 19:26:45,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-12-22 19:26:45,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 156 transitions. [2020-12-22 19:26:45,763 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 156 transitions. Word has length 36 [2020-12-22 19:26:45,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:45,763 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 156 transitions. [2020-12-22 19:26:45,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-12-22 19:26:45,764 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 156 transitions. [2020-12-22 19:26:45,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-22 19:26:45,764 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:45,764 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:45,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:26:45,978 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:45,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:45,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1180963456, now seen corresponding path program 1 times [2020-12-22 19:26:45,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:45,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918668918] [2020-12-22 19:26:45,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:46,361 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:46,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918668918] [2020-12-22 19:26:46,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461974205] [2020-12-22 19:26:46,362 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 19:26:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:46,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 60 conjunts are in the unsatisfiable core [2020-12-22 19:26:46,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:26:46,453 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 19:26:46,453 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:46,457 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:46,458 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:46,458 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-22 19:26:46,591 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:46,592 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 19:26:46,593 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:26:46,599 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:46,609 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:46,610 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:46,610 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2020-12-22 19:26:46,629 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 19:26:46,629 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:46,642 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:46,646 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 19:26:46,647 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:46,660 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:46,661 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:46,661 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:40, output treesize:29 [2020-12-22 19:26:46,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:26:46,793 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 23 treesize of output 11 [2020-12-22 19:26:46,794 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:46,806 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:46,831 INFO L348 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2020-12-22 19:26:46,831 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 31 treesize of output 23 [2020-12-22 19:26:46,833 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:46,843 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:46,844 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:46,844 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:59, output treesize:25 [2020-12-22 19:26:46,945 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 21 treesize of output 20 [2020-12-22 19:26:46,946 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:46,964 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:46,969 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 21 treesize of output 20 [2020-12-22 19:26:46,970 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:46,990 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:46,992 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:46,992 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:58, output treesize:41 [2020-12-22 19:26:47,199 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_int_28|], 2=[|v_#memory_$Pointer$.base_30|], 6=[|v_#memory_$Pointer$.offset_25|]} [2020-12-22 19:26:47,204 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 21 treesize of output 17 [2020-12-22 19:26:47,205 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:47,230 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:47,250 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:47,250 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 120 treesize of output 128 [2020-12-22 19:26:47,253 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:26:47,253 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:26:47,254 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:26:47,256 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:26:47,258 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:47,278 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:47,321 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:47,321 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 122 [2020-12-22 19:26:47,324 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:47,361 INFO L625 ElimStorePlain]: treesize reduction 46, result has 53.5 percent of original size [2020-12-22 19:26:47,362 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:26:47,363 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:137, output treesize:53 [2020-12-22 19:26:47,528 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:47,528 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2020-12-22 19:26:47,529 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-22 19:26:47,546 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:47,548 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:26:47,548 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:46 [2020-12-22 19:26:47,633 INFO L443 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.base|], 2=[|#memory_$Pointer$.offset|]} [2020-12-22 19:26:47,638 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 24 [2020-12-22 19:26:47,639 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:47,651 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:47,654 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 24 treesize of output 10 [2020-12-22 19:26:47,655 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:47,662 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:47,666 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 19:26:47,666 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:57, output treesize:9 [2020-12-22 19:26:47,681 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:47,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:26:47,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 31 [2020-12-22 19:26:47,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839277135] [2020-12-22 19:26:47,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-12-22 19:26:47,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:47,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-12-22 19:26:47,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=893, Unknown=0, NotChecked=0, Total=992 [2020-12-22 19:26:47,684 INFO L87 Difference]: Start difference. First operand 143 states and 156 transitions. Second operand 32 states. [2020-12-22 19:26:48,805 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2020-12-22 19:26:51,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:51,579 INFO L93 Difference]: Finished difference Result 282 states and 293 transitions. [2020-12-22 19:26:51,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-12-22 19:26:51,580 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 36 [2020-12-22 19:26:51,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:51,581 INFO L225 Difference]: With dead ends: 282 [2020-12-22 19:26:51,582 INFO L226 Difference]: Without dead ends: 282 [2020-12-22 19:26:51,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1005 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=521, Invalid=3511, Unknown=0, NotChecked=0, Total=4032 [2020-12-22 19:26:51,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-12-22 19:26:51,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 148. [2020-12-22 19:26:51,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-12-22 19:26:51,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 162 transitions. [2020-12-22 19:26:51,588 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 162 transitions. Word has length 36 [2020-12-22 19:26:51,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:51,588 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 162 transitions. [2020-12-22 19:26:51,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-12-22 19:26:51,588 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 162 transitions. [2020-12-22 19:26:51,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-22 19:26:51,589 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:51,589 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:51,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-12-22 19:26:51,804 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:51,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:51,805 INFO L82 PathProgramCache]: Analyzing trace with hash -932167743, now seen corresponding path program 1 times [2020-12-22 19:26:51,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:51,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842413798] [2020-12-22 19:26:51,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:52,081 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 19:26:52,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842413798] [2020-12-22 19:26:52,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89388976] [2020-12-22 19:26:52,082 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 19:26:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:52,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 39 conjunts are in the unsatisfiable core [2020-12-22 19:26:52,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:26:52,254 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:26:52,255 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:52,268 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:52,272 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:26:52,273 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:52,285 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:52,286 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:52,286 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:39, output treesize:28 [2020-12-22 19:26:52,326 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-22 19:26:52,327 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:52,334 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:52,335 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:52,335 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:14 [2020-12-22 19:26:52,396 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 23 treesize of output 11 [2020-12-22 19:26:52,397 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:52,404 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:52,407 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-22 19:26:52,408 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:52,415 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:52,418 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 19:26:52,418 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:18 [2020-12-22 19:26:52,518 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:52,518 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2020-12-22 19:26:52,519 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-22 19:26:52,528 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:52,529 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 19:26:52,529 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:11 [2020-12-22 19:26:52,567 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2020-12-22 19:26:52,569 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:52,570 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:52,571 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 19:26:52,571 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:5 [2020-12-22 19:26:52,585 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 19:26:52,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:26:52,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 22 [2020-12-22 19:26:52,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626234432] [2020-12-22 19:26:52,587 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-12-22 19:26:52,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:52,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-12-22 19:26:52,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2020-12-22 19:26:52,588 INFO L87 Difference]: Start difference. First operand 148 states and 162 transitions. Second operand 23 states. [2020-12-22 19:26:53,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:53,970 INFO L93 Difference]: Finished difference Result 206 states and 215 transitions. [2020-12-22 19:26:53,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-12-22 19:26:53,971 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 39 [2020-12-22 19:26:53,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:53,972 INFO L225 Difference]: With dead ends: 206 [2020-12-22 19:26:53,972 INFO L226 Difference]: Without dead ends: 206 [2020-12-22 19:26:53,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=292, Invalid=1430, Unknown=0, NotChecked=0, Total=1722 [2020-12-22 19:26:53,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-12-22 19:26:53,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 147. [2020-12-22 19:26:53,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-12-22 19:26:53,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 161 transitions. [2020-12-22 19:26:53,977 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 161 transitions. Word has length 39 [2020-12-22 19:26:53,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:53,977 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 161 transitions. [2020-12-22 19:26:53,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-12-22 19:26:53,977 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 161 transitions. [2020-12-22 19:26:53,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-22 19:26:53,978 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:53,978 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:54,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-12-22 19:26:54,192 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:54,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:54,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1167616910, now seen corresponding path program 1 times [2020-12-22 19:26:54,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:54,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152891884] [2020-12-22 19:26:54,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:54,401 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:54,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152891884] [2020-12-22 19:26:54,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963552589] [2020-12-22 19:26:54,401 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 19:26:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:54,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 50 conjunts are in the unsatisfiable core [2020-12-22 19:26:54,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:26:54,539 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 19:26:54,540 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:54,548 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:54,549 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:54,549 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:18 [2020-12-22 19:26:54,582 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:26:54,582 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:54,595 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:54,598 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:26:54,599 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:54,610 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:54,611 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:54,611 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:30 [2020-12-22 19:26:54,645 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-22 19:26:54,646 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:54,654 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:54,654 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:54,655 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:23 [2020-12-22 19:26:54,718 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 11 [2020-12-22 19:26:54,719 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:54,729 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:54,732 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 34 [2020-12-22 19:26:54,734 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:54,741 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:54,742 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:54,742 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:59, output treesize:24 [2020-12-22 19:26:54,821 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:54,821 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2020-12-22 19:26:54,823 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-22 19:26:54,831 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:54,832 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:54,832 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:25 [2020-12-22 19:26:54,929 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2020-12-22 19:26:54,930 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:54,934 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:54,936 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 19:26:54,936 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:5 [2020-12-22 19:26:55,061 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-22 19:26:55,062 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:55,066 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:55,067 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:55,067 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:7 [2020-12-22 19:26:55,089 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:26:55,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:26:55,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18] total 30 [2020-12-22 19:26:55,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696012328] [2020-12-22 19:26:55,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-12-22 19:26:55,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:55,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-12-22 19:26:55,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=809, Unknown=0, NotChecked=0, Total=930 [2020-12-22 19:26:55,091 INFO L87 Difference]: Start difference. First operand 147 states and 161 transitions. Second operand 31 states. [2020-12-22 19:26:57,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:26:57,043 INFO L93 Difference]: Finished difference Result 210 states and 218 transitions. [2020-12-22 19:26:57,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-12-22 19:26:57,044 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 40 [2020-12-22 19:26:57,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:26:57,045 INFO L225 Difference]: With dead ends: 210 [2020-12-22 19:26:57,046 INFO L226 Difference]: Without dead ends: 210 [2020-12-22 19:26:57,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 759 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=459, Invalid=2511, Unknown=0, NotChecked=0, Total=2970 [2020-12-22 19:26:57,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-12-22 19:26:57,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 149. [2020-12-22 19:26:57,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-12-22 19:26:57,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 163 transitions. [2020-12-22 19:26:57,051 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 163 transitions. Word has length 40 [2020-12-22 19:26:57,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:26:57,051 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 163 transitions. [2020-12-22 19:26:57,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-12-22 19:26:57,051 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 163 transitions. [2020-12-22 19:26:57,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 19:26:57,052 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:26:57,052 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:26:57,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-12-22 19:26:57,267 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:26:57,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:26:57,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1834968935, now seen corresponding path program 1 times [2020-12-22 19:26:57,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:26:57,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762097216] [2020-12-22 19:26:57,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:26:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:57,866 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 19:26:57,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762097216] [2020-12-22 19:26:57,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081380243] [2020-12-22 19:26:57,867 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 19:26:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:26:57,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 48 conjunts are in the unsatisfiable core [2020-12-22 19:26:57,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:26:58,081 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:26:58,082 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:58,096 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:58,098 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 19:26:58,098 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:45, output treesize:44 [2020-12-22 19:26:58,288 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:26:58,289 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 80 [2020-12-22 19:26:58,291 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-22 19:26:58,291 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:26:58,293 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:58,315 INFO L625 ElimStorePlain]: treesize reduction 47, result has 44.7 percent of original size [2020-12-22 19:26:58,316 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 19:26:58,316 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:82, output treesize:38 [2020-12-22 19:26:59,027 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:26:59,028 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:26:59,029 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 26 [2020-12-22 19:26:59,030 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:26:59,067 INFO L625 ElimStorePlain]: treesize reduction 5, result has 88.4 percent of original size [2020-12-22 19:26:59,070 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:26:59,070 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:23 [2020-12-22 19:26:59,422 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 19:26:59,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:26:59,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 20] total 36 [2020-12-22 19:26:59,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292016074] [2020-12-22 19:26:59,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-12-22 19:26:59,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:26:59,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-12-22 19:26:59,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1212, Unknown=0, NotChecked=0, Total=1332 [2020-12-22 19:26:59,425 INFO L87 Difference]: Start difference. First operand 149 states and 163 transitions. Second operand 37 states. [2020-12-22 19:27:01,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:27:01,474 INFO L93 Difference]: Finished difference Result 156 states and 169 transitions. [2020-12-22 19:27:01,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-12-22 19:27:01,475 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 41 [2020-12-22 19:27:01,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:27:01,480 INFO L225 Difference]: With dead ends: 156 [2020-12-22 19:27:01,480 INFO L226 Difference]: Without dead ends: 152 [2020-12-22 19:27:01,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=260, Invalid=2190, Unknown=0, NotChecked=0, Total=2450 [2020-12-22 19:27:01,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-12-22 19:27:01,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 149. [2020-12-22 19:27:01,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-12-22 19:27:01,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 162 transitions. [2020-12-22 19:27:01,485 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 162 transitions. Word has length 41 [2020-12-22 19:27:01,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:27:01,485 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 162 transitions. [2020-12-22 19:27:01,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-12-22 19:27:01,486 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 162 transitions. [2020-12-22 19:27:01,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 19:27:01,487 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:27:01,487 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:27:01,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:27:01,701 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:27:01,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:27:01,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1836385990, now seen corresponding path program 1 times [2020-12-22 19:27:01,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:27:01,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85379790] [2020-12-22 19:27:01,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:27:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:27:02,070 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:27:02,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85379790] [2020-12-22 19:27:02,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296807989] [2020-12-22 19:27:02,071 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 19:27:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:27:02,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 40 conjunts are in the unsatisfiable core [2020-12-22 19:27:02,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:27:02,238 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:27:02,239 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:02,252 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:02,256 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:27:02,257 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:02,268 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:02,269 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:02,269 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:39, output treesize:28 [2020-12-22 19:27:02,316 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-22 19:27:02,317 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:02,322 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:02,323 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:02,323 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:14 [2020-12-22 19:27:02,423 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-22 19:27:02,424 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:02,433 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:02,436 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 23 treesize of output 11 [2020-12-22 19:27:02,437 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:02,443 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:02,444 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 19:27:02,444 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:18 [2020-12-22 19:27:02,573 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:02,573 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2020-12-22 19:27:02,575 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-22 19:27:02,584 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:02,585 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 19:27:02,586 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:11 [2020-12-22 19:27:02,707 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:27:02,709 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:02,710 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 10 [2020-12-22 19:27:02,711 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:02,717 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:02,718 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:02,718 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:23, output treesize:3 [2020-12-22 19:27:02,820 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:27:02,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:27:02,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 15] total 34 [2020-12-22 19:27:02,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305028924] [2020-12-22 19:27:02,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-12-22 19:27:02,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:27:02,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-12-22 19:27:02,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1007, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 19:27:02,822 INFO L87 Difference]: Start difference. First operand 149 states and 162 transitions. Second operand 34 states. [2020-12-22 19:27:05,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:27:05,736 INFO L93 Difference]: Finished difference Result 186 states and 193 transitions. [2020-12-22 19:27:05,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-12-22 19:27:05,736 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 41 [2020-12-22 19:27:05,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:27:05,737 INFO L225 Difference]: With dead ends: 186 [2020-12-22 19:27:05,738 INFO L226 Difference]: Without dead ends: 162 [2020-12-22 19:27:05,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1067 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=507, Invalid=4185, Unknown=0, NotChecked=0, Total=4692 [2020-12-22 19:27:05,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-12-22 19:27:05,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 125. [2020-12-22 19:27:05,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-12-22 19:27:05,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 137 transitions. [2020-12-22 19:27:05,743 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 137 transitions. Word has length 41 [2020-12-22 19:27:05,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:27:05,743 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 137 transitions. [2020-12-22 19:27:05,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-12-22 19:27:05,743 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 137 transitions. [2020-12-22 19:27:05,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 19:27:05,744 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:27:05,744 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:27:05,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-12-22 19:27:05,960 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:27:05,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:27:05,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1454841971, now seen corresponding path program 1 times [2020-12-22 19:27:05,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:27:05,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095037557] [2020-12-22 19:27:05,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:27:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:27:06,379 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 19:27:06,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095037557] [2020-12-22 19:27:06,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793467611] [2020-12-22 19:27:06,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:27:06,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:27:06,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 76 conjunts are in the unsatisfiable core [2020-12-22 19:27:06,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:27:06,467 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 19:27:06,468 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:06,473 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:06,476 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:06,476 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-22 19:27:06,613 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:06,614 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 19:27:06,615 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:27:06,617 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:06,631 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:06,632 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:06,632 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:27 [2020-12-22 19:27:06,690 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 19:27:06,690 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:06,710 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:06,714 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:27:06,715 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:06,743 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:06,744 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 19:27:06,745 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:53, output treesize:45 [2020-12-22 19:27:06,913 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_int_32|], 2=[|v_#memory_$Pointer$.offset_30|, |v_#memory_$Pointer$.base_40|]} [2020-12-22 19:27:06,919 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-22 19:27:06,920 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:06,948 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:06,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:27:06,954 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 34 treesize of output 16 [2020-12-22 19:27:06,955 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:06,981 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:06,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:27:06,988 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 46 treesize of output 22 [2020-12-22 19:27:06,989 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:07,009 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:07,010 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:07,010 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:101, output treesize:61 [2020-12-22 19:27:07,094 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:07,094 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 22 treesize of output 32 [2020-12-22 19:27:07,096 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:27:07,097 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:27:07,098 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:07,119 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:07,120 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:07,120 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:62 [2020-12-22 19:27:07,197 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:27:07,209 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:07,210 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 43 treesize of output 48 [2020-12-22 19:27:07,211 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:07,276 INFO L625 ElimStorePlain]: treesize reduction 4, result has 95.5 percent of original size [2020-12-22 19:27:07,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:27:07,282 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 23 treesize of output 22 [2020-12-22 19:27:07,283 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:07,311 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:07,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:27:07,318 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 27 treesize of output 11 [2020-12-22 19:27:07,320 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:07,343 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:07,344 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:07,344 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:104, output treesize:64 [2020-12-22 19:27:07,570 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_int_34|], 6=[|v_#memory_$Pointer$.base_42|, |v_#memory_$Pointer$.offset_32|]} [2020-12-22 19:27:07,576 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 85 treesize of output 66 [2020-12-22 19:27:07,577 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:07,645 INFO L625 ElimStorePlain]: treesize reduction 28, result has 92.3 percent of original size [2020-12-22 19:27:07,649 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:27:07,699 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:07,700 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 316 treesize of output 277 [2020-12-22 19:27:07,704 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 19:27:07,705 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:27:07,706 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:27:07,707 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:27:07,708 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 19:27:07,711 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:27:07,712 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:27:07,714 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:27:07,715 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:27:07,716 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:27:07,717 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:27:07,718 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 19:27:07,722 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-22 19:27:07,722 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:27:07,723 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:27:07,724 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2020-12-22 19:27:07,725 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:27:07,726 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 19:27:07,726 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:27:07,728 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:27:07,729 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:27:07,732 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 4 xjuncts. [2020-12-22 19:27:07,830 INFO L625 ElimStorePlain]: treesize reduction 1200, result has 16.2 percent of original size [2020-12-22 19:27:07,892 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:07,892 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 229 treesize of output 250 [2020-12-22 19:27:07,897 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 19:27:07,898 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:27:07,899 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 19:27:07,902 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 3 xjuncts. [2020-12-22 19:27:07,956 INFO L625 ElimStorePlain]: treesize reduction 234, result has 23.0 percent of original size [2020-12-22 19:27:07,956 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:07,957 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:387, output treesize:70 [2020-12-22 19:27:08,272 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:08,273 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 36 [2020-12-22 19:27:08,274 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:27:08,276 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:27:08,276 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 19:27:08,312 INFO L625 ElimStorePlain]: treesize reduction 8, result has 84.3 percent of original size [2020-12-22 19:27:08,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:27:08,317 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 22 treesize of output 10 [2020-12-22 19:27:08,318 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:08,326 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:08,327 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:27:08,327 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:66, output treesize:25 [2020-12-22 19:27:08,499 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:08,500 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 37 [2020-12-22 19:27:08,501 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:08,508 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:08,509 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:08,509 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:29, output treesize:3 [2020-12-22 19:27:08,529 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 19:27:08,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:27:08,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 37 [2020-12-22 19:27:08,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543344601] [2020-12-22 19:27:08,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-12-22 19:27:08,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:27:08,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-12-22 19:27:08,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1205, Unknown=0, NotChecked=0, Total=1332 [2020-12-22 19:27:08,532 INFO L87 Difference]: Start difference. First operand 125 states and 137 transitions. Second operand 37 states. [2020-12-22 19:27:09,402 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2020-12-22 19:27:11,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:27:11,877 INFO L93 Difference]: Finished difference Result 257 states and 266 transitions. [2020-12-22 19:27:11,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-12-22 19:27:11,878 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 41 [2020-12-22 19:27:11,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:27:11,880 INFO L225 Difference]: With dead ends: 257 [2020-12-22 19:27:11,880 INFO L226 Difference]: Without dead ends: 257 [2020-12-22 19:27:11,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1027 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=432, Invalid=3350, Unknown=0, NotChecked=0, Total=3782 [2020-12-22 19:27:11,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-12-22 19:27:11,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 125. [2020-12-22 19:27:11,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-12-22 19:27:11,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 136 transitions. [2020-12-22 19:27:11,886 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 136 transitions. Word has length 41 [2020-12-22 19:27:11,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:27:11,886 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 136 transitions. [2020-12-22 19:27:11,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-12-22 19:27:11,886 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 136 transitions. [2020-12-22 19:27:11,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-22 19:27:11,887 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:27:11,887 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:27:12,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-12-22 19:27:12,101 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:27:12,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:27:12,102 INFO L82 PathProgramCache]: Analyzing trace with hash -2056180247, now seen corresponding path program 1 times [2020-12-22 19:27:12,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:27:12,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670016526] [2020-12-22 19:27:12,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:27:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:27:12,677 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:27:12,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670016526] [2020-12-22 19:27:12,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345610579] [2020-12-22 19:27:12,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:27:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:27:12,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 71 conjunts are in the unsatisfiable core [2020-12-22 19:27:12,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:27:12,855 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:12,855 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 19:27:12,858 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:27:12,858 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:27:12,860 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:27:12,860 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:27:12,863 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:12,892 INFO L625 ElimStorePlain]: treesize reduction 10, result has 73.0 percent of original size [2020-12-22 19:27:12,893 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:12,893 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:27 [2020-12-22 19:27:12,957 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 19:27:12,958 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:12,977 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:12,981 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 19:27:12,982 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:13,003 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:13,004 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 19:27:13,004 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:53, output treesize:45 [2020-12-22 19:27:13,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:27:13,201 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 40 treesize of output 20 [2020-12-22 19:27:13,203 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:13,225 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:13,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:27:13,231 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 30 treesize of output 14 [2020-12-22 19:27:13,232 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:13,250 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:13,251 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:13,251 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:80, output treesize:50 [2020-12-22 19:27:13,358 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:13,358 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 26 treesize of output 89 [2020-12-22 19:27:13,361 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:27:13,362 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:27:13,363 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:27:13,363 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:27:13,366 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:13,419 INFO L625 ElimStorePlain]: treesize reduction 10, result has 87.5 percent of original size [2020-12-22 19:27:13,420 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:13,420 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:70 [2020-12-22 19:27:13,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:27:13,511 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 28 treesize of output 23 [2020-12-22 19:27:13,512 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:13,546 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:13,553 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:27:13,569 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:13,569 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 46 treesize of output 49 [2020-12-22 19:27:13,571 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:13,645 INFO L625 ElimStorePlain]: treesize reduction 4, result has 94.5 percent of original size [2020-12-22 19:27:13,646 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:13,647 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:93, output treesize:78 [2020-12-22 19:27:13,922 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_int_35|], 6=[|v_#memory_$Pointer$.offset_36|, |v_#memory_$Pointer$.base_46|]} [2020-12-22 19:27:13,927 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 41 treesize of output 27 [2020-12-22 19:27:13,928 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:13,969 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:13,981 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:13,982 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 1 case distinctions, treesize of input 185 treesize of output 144 [2020-12-22 19:27:13,984 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:14,056 INFO L625 ElimStorePlain]: treesize reduction 30, result has 86.2 percent of original size [2020-12-22 19:27:14,060 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:27:14,109 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:14,109 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 162 treesize of output 171 [2020-12-22 19:27:14,114 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-22 19:27:14,115 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:27:14,116 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 19:27:14,116 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 19:27:14,117 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 19:27:14,118 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:27:14,119 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 19:27:14,120 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 19:27:14,121 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 19:27:14,122 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 19:27:14,122 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:27:14,123 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 19:27:14,124 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:27:14,125 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:27:14,126 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:27:14,129 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 6 xjuncts. [2020-12-22 19:27:14,244 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2020-12-22 19:27:14,245 INFO L625 ElimStorePlain]: treesize reduction 734, result has 14.3 percent of original size [2020-12-22 19:27:14,247 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:27:14,247 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:266, output treesize:122 [2020-12-22 19:27:14,458 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 35 treesize of output 7 [2020-12-22 19:27:14,460 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:14,483 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:14,484 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 19:27:14,485 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:129, output treesize:95 [2020-12-22 19:27:14,593 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:14,593 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 31 [2020-12-22 19:27:14,594 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:14,644 INFO L625 ElimStorePlain]: treesize reduction 16, result has 83.0 percent of original size [2020-12-22 19:27:14,647 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:27:14,647 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:106, output treesize:78 [2020-12-22 19:27:14,855 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:27:14,856 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:27:14,872 INFO L348 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2020-12-22 19:27:14,872 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 36 [2020-12-22 19:27:14,874 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:27:14,876 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 19:27:14,893 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:14,897 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:27:14,897 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:84, output treesize:28 [2020-12-22 19:27:15,058 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:27:15,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:27:15,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 39 [2020-12-22 19:27:15,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659345200] [2020-12-22 19:27:15,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-12-22 19:27:15,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:27:15,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-12-22 19:27:15,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1389, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 19:27:15,060 INFO L87 Difference]: Start difference. First operand 125 states and 136 transitions. Second operand 40 states. [2020-12-22 19:27:20,857 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-22 19:27:21,018 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2020-12-22 19:27:28,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:27:28,076 INFO L93 Difference]: Finished difference Result 219 states and 228 transitions. [2020-12-22 19:27:28,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-12-22 19:27:28,083 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 43 [2020-12-22 19:27:28,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:27:28,084 INFO L225 Difference]: With dead ends: 219 [2020-12-22 19:27:28,084 INFO L226 Difference]: Without dead ends: 219 [2020-12-22 19:27:28,086 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1059 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=531, Invalid=3501, Unknown=0, NotChecked=0, Total=4032 [2020-12-22 19:27:28,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-12-22 19:27:28,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 127. [2020-12-22 19:27:28,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-12-22 19:27:28,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 139 transitions. [2020-12-22 19:27:28,090 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 139 transitions. Word has length 43 [2020-12-22 19:27:28,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:27:28,090 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 139 transitions. [2020-12-22 19:27:28,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-12-22 19:27:28,091 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 139 transitions. [2020-12-22 19:27:28,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-22 19:27:28,091 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:27:28,091 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:27:28,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:27:28,303 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:27:28,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:27:28,304 INFO L82 PathProgramCache]: Analyzing trace with hash -2056180246, now seen corresponding path program 1 times [2020-12-22 19:27:28,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:27:28,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642344665] [2020-12-22 19:27:28,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:27:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:27:28,882 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:27:28,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642344665] [2020-12-22 19:27:28,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694066439] [2020-12-22 19:27:28,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:27:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:27:28,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 82 conjunts are in the unsatisfiable core [2020-12-22 19:27:28,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:27:28,978 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 19:27:28,978 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:28,983 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:28,984 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:28,984 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-22 19:27:29,146 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:29,146 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 19:27:29,147 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:27:29,149 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:29,161 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:29,162 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:29,162 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2020-12-22 19:27:29,179 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 19:27:29,180 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:29,191 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:29,195 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 19:27:29,195 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:29,209 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:29,210 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:29,211 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:40, output treesize:29 [2020-12-22 19:27:29,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:27:29,377 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 30 treesize of output 14 [2020-12-22 19:27:29,384 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:29,396 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:29,400 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 31 treesize of output 15 [2020-12-22 19:27:29,401 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:29,411 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:29,411 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:29,412 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:63, output treesize:25 [2020-12-22 19:27:29,470 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 19:27:29,471 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:29,483 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:29,484 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:29,484 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:41 [2020-12-22 19:27:29,546 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:27:29,557 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:29,557 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 29 treesize of output 40 [2020-12-22 19:27:29,558 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:29,577 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:29,582 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 28 treesize of output 23 [2020-12-22 19:27:29,583 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:29,603 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:29,604 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:29,604 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:64, output treesize:49 [2020-12-22 19:27:29,824 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_int_36|], 6=[|v_#memory_$Pointer$.offset_40|, |v_#memory_$Pointer$.base_50|]} [2020-12-22 19:27:29,828 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 53 treesize of output 35 [2020-12-22 19:27:29,829 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:29,858 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:29,906 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:29,906 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 249 treesize of output 232 [2020-12-22 19:27:29,909 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:29,928 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:29,942 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:29,942 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 63 [2020-12-22 19:27:29,943 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:29,957 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:29,958 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:29,958 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:278, output treesize:58 [2020-12-22 19:27:30,506 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:27:30,521 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:30,522 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 50 [2020-12-22 19:27:30,523 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:30,557 INFO L625 ElimStorePlain]: treesize reduction 8, result has 90.2 percent of original size [2020-12-22 19:27:30,560 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:27:30,561 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 19:27:30,561 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:75, output treesize:74 [2020-12-22 19:27:30,562 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:27:32,653 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:27:32,668 INFO L348 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2020-12-22 19:27:32,668 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 51 [2020-12-22 19:27:32,671 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 19:27:32,685 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:32,693 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:32,693 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 23 [2020-12-22 19:27:32,694 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:32,703 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:32,705 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:32,705 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:94, output treesize:9 [2020-12-22 19:27:32,721 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:27:32,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:27:32,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 22] total 38 [2020-12-22 19:27:32,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062455661] [2020-12-22 19:27:32,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-12-22 19:27:32,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:27:32,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-12-22 19:27:32,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1360, Unknown=2, NotChecked=0, Total=1482 [2020-12-22 19:27:32,723 INFO L87 Difference]: Start difference. First operand 127 states and 139 transitions. Second operand 39 states. [2020-12-22 19:27:33,891 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2020-12-22 19:27:37,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:27:37,746 INFO L93 Difference]: Finished difference Result 267 states and 277 transitions. [2020-12-22 19:27:37,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-12-22 19:27:37,747 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 43 [2020-12-22 19:27:37,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:27:37,748 INFO L225 Difference]: With dead ends: 267 [2020-12-22 19:27:37,749 INFO L226 Difference]: Without dead ends: 267 [2020-12-22 19:27:37,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1232 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=498, Invalid=4192, Unknown=2, NotChecked=0, Total=4692 [2020-12-22 19:27:37,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-12-22 19:27:37,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 131. [2020-12-22 19:27:37,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-12-22 19:27:37,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 144 transitions. [2020-12-22 19:27:37,753 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 144 transitions. Word has length 43 [2020-12-22 19:27:37,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:27:37,754 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 144 transitions. [2020-12-22 19:27:37,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-12-22 19:27:37,754 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 144 transitions. [2020-12-22 19:27:37,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-22 19:27:37,754 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:27:37,755 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:27:37,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2020-12-22 19:27:37,970 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:27:37,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:27:37,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1116291750, now seen corresponding path program 1 times [2020-12-22 19:27:37,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:27:37,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066145717] [2020-12-22 19:27:37,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:27:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:27:38,404 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 19:27:38,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066145717] [2020-12-22 19:27:38,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548486963] [2020-12-22 19:27:38,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:27:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:27:38,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 55 conjunts are in the unsatisfiable core [2020-12-22 19:27:38,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:27:38,490 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 19:27:38,491 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:38,496 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:38,497 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:38,497 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-22 19:27:38,653 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:38,654 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 19:27:38,655 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:27:38,657 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:38,671 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:38,672 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:38,672 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:27 [2020-12-22 19:27:38,733 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 19:27:38,734 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:38,751 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:38,752 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 19:27:38,753 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:40, output treesize:39 [2020-12-22 19:27:38,974 INFO L348 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2020-12-22 19:27:38,975 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 46 treesize of output 32 [2020-12-22 19:27:38,976 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:38,993 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:38,994 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 19:27:38,995 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:60, output treesize:33 [2020-12-22 19:27:39,085 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:39,087 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 23 treesize of output 74 [2020-12-22 19:27:39,089 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:39,140 INFO L625 ElimStorePlain]: treesize reduction 46, result has 53.5 percent of original size [2020-12-22 19:27:39,142 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 19:27:39,142 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:53 [2020-12-22 19:27:39,237 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_41|], 2=[|v_#memory_$Pointer$.base_53|]} [2020-12-22 19:27:39,242 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:27:39,243 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:39,263 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:39,288 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:39,288 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 44 treesize of output 65 [2020-12-22 19:27:39,290 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:39,310 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:39,312 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 19:27:39,313 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:71, output treesize:42 [2020-12-22 19:27:39,391 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 31 treesize of output 7 [2020-12-22 19:27:39,392 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:39,405 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:39,407 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:27:39,408 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:66, output treesize:39 [2020-12-22 19:27:39,559 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_int_37|], 2=[|v_#memory_$Pointer$.base_54|]} [2020-12-22 19:27:39,564 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-22 19:27:39,565 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:39,587 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:39,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:27:39,595 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 37 treesize of output 19 [2020-12-22 19:27:39,596 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:39,613 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:39,614 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 19:27:39,614 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:62, output treesize:43 [2020-12-22 19:27:39,807 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:39,808 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2020-12-22 19:27:39,812 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-22 19:27:39,829 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:39,833 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:27:39,834 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:50, output treesize:36 [2020-12-22 19:27:40,090 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:27:40,091 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 29 treesize of output 13 [2020-12-22 19:27:40,092 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:40,103 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:40,105 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 19:27:40,105 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:40, output treesize:15 [2020-12-22 19:27:40,217 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 19:27:40,218 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:40,228 INFO L625 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2020-12-22 19:27:40,229 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 19:27:40,230 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:11 [2020-12-22 19:27:40,302 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 19:27:40,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:27:40,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2020-12-22 19:27:40,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920023806] [2020-12-22 19:27:40,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-12-22 19:27:40,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:27:40,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-12-22 19:27:40,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=1382, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 19:27:40,304 INFO L87 Difference]: Start difference. First operand 131 states and 144 transitions. Second operand 40 states. [2020-12-22 19:27:43,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:27:43,883 INFO L93 Difference]: Finished difference Result 246 states and 259 transitions. [2020-12-22 19:27:43,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-12-22 19:27:43,884 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 46 [2020-12-22 19:27:43,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:27:43,886 INFO L225 Difference]: With dead ends: 246 [2020-12-22 19:27:43,886 INFO L226 Difference]: Without dead ends: 246 [2020-12-22 19:27:43,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1292 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=653, Invalid=4317, Unknown=0, NotChecked=0, Total=4970 [2020-12-22 19:27:43,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-12-22 19:27:43,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 155. [2020-12-22 19:27:43,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-12-22 19:27:43,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 181 transitions. [2020-12-22 19:27:43,891 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 181 transitions. Word has length 46 [2020-12-22 19:27:43,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:27:43,891 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 181 transitions. [2020-12-22 19:27:43,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-12-22 19:27:43,891 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 181 transitions. [2020-12-22 19:27:43,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-22 19:27:43,892 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:27:43,892 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:27:44,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:27:44,094 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:27:44,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:27:44,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1116291749, now seen corresponding path program 1 times [2020-12-22 19:27:44,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:27:44,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115755463] [2020-12-22 19:27:44,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:27:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:27:44,540 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 19:27:44,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115755463] [2020-12-22 19:27:44,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307694326] [2020-12-22 19:27:44,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:27:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:27:44,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 64 conjunts are in the unsatisfiable core [2020-12-22 19:27:44,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:27:44,642 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 19:27:44,643 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:44,647 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:44,647 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:44,648 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-22 19:27:44,795 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:44,796 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 19:27:44,797 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:27:44,799 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:44,812 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:44,813 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:44,813 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2020-12-22 19:27:44,872 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 19:27:44,873 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:44,891 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:44,896 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:27:44,897 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:44,914 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:44,915 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:44,915 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:32 [2020-12-22 19:27:45,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:27:45,119 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 25 treesize of output 13 [2020-12-22 19:27:45,120 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:45,140 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:45,168 INFO L348 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2020-12-22 19:27:45,169 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 35 treesize of output 27 [2020-12-22 19:27:45,170 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:45,187 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:45,189 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 19:27:45,190 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:71, output treesize:35 [2020-12-22 19:27:45,356 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 23 treesize of output 22 [2020-12-22 19:27:45,357 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:45,384 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:45,391 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 23 treesize of output 22 [2020-12-22 19:27:45,393 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:45,419 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:45,421 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 19:27:45,422 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:68, output treesize:51 [2020-12-22 19:27:45,712 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_int_38|], 2=[|v_#memory_$Pointer$.base_58|], 6=[|v_#memory_$Pointer$.offset_45|]} [2020-12-22 19:27:45,718 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 19 [2020-12-22 19:27:45,719 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:45,754 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:45,776 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:45,777 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 136 treesize of output 136 [2020-12-22 19:27:45,778 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:27:45,779 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:27:45,782 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:27:45,782 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:27:45,784 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 19:27:45,861 INFO L625 ElimStorePlain]: treesize reduction 52, result has 63.6 percent of original size [2020-12-22 19:27:45,911 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:45,911 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 114 [2020-12-22 19:27:45,914 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:45,988 INFO L625 ElimStorePlain]: treesize reduction 68, result has 46.0 percent of original size [2020-12-22 19:27:45,991 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:27:45,992 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:161, output treesize:67 [2020-12-22 19:27:46,225 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:46,225 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2020-12-22 19:27:46,230 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-22 19:27:46,257 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:46,261 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:27:46,261 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:74, output treesize:60 [2020-12-22 19:27:46,507 INFO L443 ElimStorePlain]: Different costs {2=[|#memory_$Pointer$.base|], 6=[|#memory_$Pointer$.offset|]} [2020-12-22 19:27:46,511 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:27:46,512 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 46 treesize of output 24 [2020-12-22 19:27:46,513 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:46,529 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:46,533 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:27:46,534 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2020-12-22 19:27:46,535 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:46,547 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:46,550 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 19:27:46,550 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:71, output treesize:9 [2020-12-22 19:27:46,692 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 19:27:46,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:27:46,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 38 [2020-12-22 19:27:46,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775908269] [2020-12-22 19:27:46,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-12-22 19:27:46,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:27:46,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-12-22 19:27:46,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1295, Unknown=0, NotChecked=0, Total=1406 [2020-12-22 19:27:46,693 INFO L87 Difference]: Start difference. First operand 155 states and 181 transitions. Second operand 38 states. [2020-12-22 19:27:48,013 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 69 [2020-12-22 19:27:48,253 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 85 [2020-12-22 19:27:51,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:27:51,944 INFO L93 Difference]: Finished difference Result 275 states and 284 transitions. [2020-12-22 19:27:51,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-12-22 19:27:51,945 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 46 [2020-12-22 19:27:51,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:27:51,946 INFO L225 Difference]: With dead ends: 275 [2020-12-22 19:27:51,946 INFO L226 Difference]: Without dead ends: 275 [2020-12-22 19:27:51,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1297 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=615, Invalid=4935, Unknown=0, NotChecked=0, Total=5550 [2020-12-22 19:27:51,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-12-22 19:27:51,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 158. [2020-12-22 19:27:51,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-12-22 19:27:51,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 183 transitions. [2020-12-22 19:27:51,952 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 183 transitions. Word has length 46 [2020-12-22 19:27:51,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:27:51,952 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 183 transitions. [2020-12-22 19:27:51,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-12-22 19:27:51,952 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 183 transitions. [2020-12-22 19:27:51,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-22 19:27:51,953 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:27:51,953 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:27:52,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2020-12-22 19:27:52,157 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:27:52,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:27:52,158 INFO L82 PathProgramCache]: Analyzing trace with hash -2104783982, now seen corresponding path program 2 times [2020-12-22 19:27:52,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:27:52,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963846992] [2020-12-22 19:27:52,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:27:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:27:52,752 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:27:52,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963846992] [2020-12-22 19:27:52,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545269570] [2020-12-22 19:27:52,752 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:27:52,842 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 19:27:52,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:27:52,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 50 conjunts are in the unsatisfiable core [2020-12-22 19:27:52,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:27:52,852 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 19:27:52,853 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:52,859 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:52,861 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:52,861 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-22 19:27:53,018 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:53,018 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 19:27:53,020 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:27:53,022 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:53,034 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:53,034 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:53,035 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2020-12-22 19:27:53,096 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 19:27:53,097 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:53,129 INFO L625 ElimStorePlain]: treesize reduction 5, result has 86.8 percent of original size [2020-12-22 19:27:53,130 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 19:27:53,131 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:42, output treesize:36 [2020-12-22 19:27:53,355 INFO L348 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2020-12-22 19:27:53,355 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 46 treesize of output 32 [2020-12-22 19:27:53,357 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:53,367 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:53,368 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:53,368 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:54, output treesize:27 [2020-12-22 19:27:53,465 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:53,466 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 28 treesize of output 99 [2020-12-22 19:27:53,467 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:27:53,467 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:27:53,469 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:53,488 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:53,493 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:53,493 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:58 [2020-12-22 19:27:53,586 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:53,587 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 54 treesize of output 69 [2020-12-22 19:27:53,590 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:53,610 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:53,611 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 19:27:53,611 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:71, output treesize:58 [2020-12-22 19:27:53,949 INFO L348 Elim1Store]: treesize reduction 48, result has 53.4 percent of original size [2020-12-22 19:27:53,950 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 107 treesize of output 83 [2020-12-22 19:27:53,952 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:27:53,953 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:27:53,953 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:27:53,955 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:53,973 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:53,975 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 19:27:53,975 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:115, output treesize:64 [2020-12-22 19:27:54,121 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:54,121 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 189 [2020-12-22 19:27:54,124 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:27:54,125 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:27:54,126 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:27:54,129 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:27:54,161 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:54,163 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 19:27:54,163 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:111, output treesize:135 [2020-12-22 19:27:54,335 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:54,336 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 148 [2020-12-22 19:27:54,341 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:27:54,341 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:27:54,342 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:27:54,342 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:27:54,344 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:27:54,346 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:27:54,381 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:54,383 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:27:54,383 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:148, output treesize:111 [2020-12-22 19:27:54,850 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-12-22 19:27:54,851 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:54,852 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 253 treesize of output 237 [2020-12-22 19:27:54,857 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:27:54,858 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:27:54,858 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:27:54,858 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 19:27:54,859 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:27:54,860 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:27:54,861 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:27:54,862 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:27:54,862 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:27:54,863 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:27:54,863 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:27:54,864 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:27:54,864 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:27:54,865 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:27:54,865 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:27:54,866 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:27:54,867 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:27:54,867 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:27:54,868 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:27:54,868 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:27:54,869 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:27:54,869 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:27:54,870 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:27:54,871 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:27:54,872 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:27:54,884 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:27:54,885 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 2, 1] term [2020-12-22 19:27:54,885 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 19:27:54,887 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:27:54,887 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:27:54,887 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:27:54,888 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:27:54,888 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:27:54,890 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 14 disjuncts [2020-12-22 19:27:54,891 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-22 19:27:54,891 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 13 disjuncts [2020-12-22 19:27:54,892 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-22 19:27:54,892 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-22 19:27:54,893 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-22 19:27:54,894 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 19:27:54,895 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-22 19:27:54,895 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-22 19:27:54,896 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 19:27:54,897 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 7, 12, 3, 12, 3, 1] term [2020-12-22 19:27:54,897 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-12-22 19:27:54,898 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 12, 3, 1] term [2020-12-22 19:27:54,898 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-22 19:27:54,899 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 12, 3, 1] term [2020-12-22 19:27:54,900 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:27:54,905 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 7 xjuncts. [2020-12-22 19:27:55,065 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2020-12-22 19:27:55,065 INFO L625 ElimStorePlain]: treesize reduction 2012, result has 8.7 percent of original size [2020-12-22 19:27:55,070 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:27:55,070 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:261, output treesize:192 [2020-12-22 19:27:55,454 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:27:55,475 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:55,476 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 193 treesize of output 97 [2020-12-22 19:27:55,479 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:27:55,480 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:27:55,481 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:27:55,482 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:27:55,483 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:27:55,486 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:27:55,487 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:27:55,491 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 19:27:55,518 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:27:55,522 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:27:55,522 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:207, output treesize:45 [2020-12-22 19:27:55,741 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:27:55,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:27:55,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20] total 42 [2020-12-22 19:27:55,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514796361] [2020-12-22 19:27:55,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-12-22 19:27:55,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:27:55,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-12-22 19:27:55,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=1657, Unknown=0, NotChecked=0, Total=1806 [2020-12-22 19:27:55,743 INFO L87 Difference]: Start difference. First operand 158 states and 183 transitions. Second operand 43 states. [2020-12-22 19:27:57,120 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2020-12-22 19:27:57,325 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2020-12-22 19:28:01,013 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2020-12-22 19:28:02,936 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 82 [2020-12-22 19:28:26,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:28:26,745 INFO L93 Difference]: Finished difference Result 324 states and 350 transitions. [2020-12-22 19:28:26,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2020-12-22 19:28:26,746 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 46 [2020-12-22 19:28:26,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:28:26,748 INFO L225 Difference]: With dead ends: 324 [2020-12-22 19:28:26,748 INFO L226 Difference]: Without dead ends: 324 [2020-12-22 19:28:26,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 27 SyntacticMatches, 6 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3831 ImplicationChecksByTransitivity, 18.7s TimeCoverageRelationStatistics Valid=1634, Invalid=11017, Unknown=5, NotChecked=0, Total=12656 [2020-12-22 19:28:26,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-12-22 19:28:26,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 160. [2020-12-22 19:28:26,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-12-22 19:28:26,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 186 transitions. [2020-12-22 19:28:26,753 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 186 transitions. Word has length 46 [2020-12-22 19:28:26,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:28:26,753 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 186 transitions. [2020-12-22 19:28:26,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-12-22 19:28:26,754 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 186 transitions. [2020-12-22 19:28:26,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-22 19:28:26,754 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:28:26,754 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:28:26,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2020-12-22 19:28:26,957 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:28:26,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:28:26,958 INFO L82 PathProgramCache]: Analyzing trace with hash -2104783981, now seen corresponding path program 2 times [2020-12-22 19:28:26,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:28:26,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44472773] [2020-12-22 19:28:26,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:28:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:28:27,762 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:28:27,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44472773] [2020-12-22 19:28:27,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769241940] [2020-12-22 19:28:27,762 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 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:28:27,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 19:28:27,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:28:27,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 76 conjunts are in the unsatisfiable core [2020-12-22 19:28:27,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:28:27,863 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 19:28:27,864 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:27,868 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:27,880 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:28:27,881 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-22 19:28:28,016 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_34|], 3=[|v_#valid_71|]} [2020-12-22 19:28:28,020 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 19:28:28,021 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:28,037 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:28,058 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:28,059 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 19:28:28,060 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:28:28,062 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:28,077 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:28,079 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:28:28,079 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:32 [2020-12-22 19:28:28,154 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 19:28:28,154 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:28,178 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:28,183 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:28:28,184 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:28,207 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:28,208 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:28:28,208 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:55, output treesize:56 [2020-12-22 19:28:28,460 INFO L348 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2020-12-22 19:28:28,460 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 57 treesize of output 37 [2020-12-22 19:28:28,462 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:28,485 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:28,489 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 25 treesize of output 13 [2020-12-22 19:28:28,490 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:28,509 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:28,510 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:28:28,511 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:92, output treesize:44 [2020-12-22 19:28:28,593 INFO L443 ElimStorePlain]: Different costs {1=[|v_#length_35|], 3=[|v_#valid_72|]} [2020-12-22 19:28:28,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:28:28,600 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 19:28:28,601 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:28,623 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:28,642 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:28,643 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 16 treesize of output 26 [2020-12-22 19:28:28,644 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:28:28,645 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:28:28,647 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:28,669 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:28,670 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:28:28,670 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:55, output treesize:47 [2020-12-22 19:28:28,765 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 23 treesize of output 22 [2020-12-22 19:28:28,766 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:28,802 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:28,807 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 23 treesize of output 22 [2020-12-22 19:28:28,809 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:28,873 INFO L625 ElimStorePlain]: treesize reduction 4, result has 94.4 percent of original size [2020-12-22 19:28:28,875 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 19:28:28,875 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:80, output treesize:68 [2020-12-22 19:28:29,194 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_49|], 6=[|v_#memory_$Pointer$.base_68|]} [2020-12-22 19:28:29,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:28:29,208 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 25 treesize of output 13 [2020-12-22 19:28:29,209 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:29,240 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:29,318 INFO L348 Elim1Store]: treesize reduction 48, result has 53.4 percent of original size [2020-12-22 19:28:29,319 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 110 treesize of output 86 [2020-12-22 19:28:29,321 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:28:29,322 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:28:29,322 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:28:29,323 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:28:29,326 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:28:29,384 INFO L625 ElimStorePlain]: treesize reduction 15, result has 83.1 percent of original size [2020-12-22 19:28:29,385 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 19:28:29,386 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:140, output treesize:74 [2020-12-22 19:28:29,515 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:29,515 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 48 treesize of output 127 [2020-12-22 19:28:29,517 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:29,601 INFO L625 ElimStorePlain]: treesize reduction 82, result has 56.8 percent of original size [2020-12-22 19:28:29,603 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 19:28:29,603 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:119, output treesize:108 [2020-12-22 19:28:29,737 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_50|], 6=[|v_#memory_$Pointer$.base_69|]} [2020-12-22 19:28:29,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:28:29,744 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 23 treesize of output 22 [2020-12-22 19:28:29,745 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:29,777 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:29,786 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:28:29,840 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:29,841 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 128 [2020-12-22 19:28:29,843 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:28:29,844 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:28:29,845 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:28:29,846 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:28:29,846 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:28:29,848 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:28:29,848 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:28:29,850 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:28:29,913 INFO L625 ElimStorePlain]: treesize reduction 10, result has 89.1 percent of original size [2020-12-22 19:28:29,915 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 19:28:29,915 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:126, output treesize:73 [2020-12-22 19:28:30,269 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_int_39|], 6=[|v_#memory_$Pointer$.offset_51|, |v_#memory_$Pointer$.base_70|]} [2020-12-22 19:28:30,276 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 29 treesize of output 25 [2020-12-22 19:28:30,277 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:30,325 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:30,378 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:30,379 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 158 treesize of output 177 [2020-12-22 19:28:30,382 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:30,488 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2020-12-22 19:28:30,489 INFO L625 ElimStorePlain]: treesize reduction 82, result has 64.7 percent of original size [2020-12-22 19:28:30,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:28:30,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:28:30,497 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:28:30,502 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:30,502 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 67 [2020-12-22 19:28:30,507 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:30,586 INFO L625 ElimStorePlain]: treesize reduction 10, result has 93.1 percent of original size [2020-12-22 19:28:30,590 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:28:30,590 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:28:30,592 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:28:30,592 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:28:30,593 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:28:30,595 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:28:30,596 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:237, output treesize:129 [2020-12-22 19:28:30,604 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:28:30,604 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:28:30,606 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:28:30,607 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:28:30,608 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:28:30,758 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:28:30,760 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:28:30,761 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:28:31,376 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:28:31,393 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 27 treesize of output 7 [2020-12-22 19:28:31,395 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:31,404 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:31,404 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2020-12-22 19:28:31,405 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2020-12-22 19:28:31,470 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:31,473 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2020-12-22 19:28:31,474 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:232, output treesize:192 [2020-12-22 19:28:31,643 INFO L443 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.offset|], 2=[|#memory_$Pointer$.base|]} [2020-12-22 19:28:31,647 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-22 19:28:31,648 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:31,665 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:31,672 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:28:31,677 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:31,677 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 33 [2020-12-22 19:28:31,682 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 19:28:31,706 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:31,710 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 19:28:31,711 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:84, output treesize:18 [2020-12-22 19:28:31,912 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:28:31,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:28:31,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21] total 43 [2020-12-22 19:28:31,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390649405] [2020-12-22 19:28:31,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-12-22 19:28:31,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:28:31,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-12-22 19:28:31,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=1720, Unknown=0, NotChecked=0, Total=1892 [2020-12-22 19:28:31,914 INFO L87 Difference]: Start difference. First operand 160 states and 186 transitions. Second operand 44 states. [2020-12-22 19:28:32,542 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 48 [2020-12-22 19:28:33,282 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 52 [2020-12-22 19:28:33,965 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 66 [2020-12-22 19:28:34,319 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2020-12-22 19:28:35,550 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 65 [2020-12-22 19:28:37,435 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2020-12-22 19:28:37,707 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 62 [2020-12-22 19:28:41,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:28:41,229 INFO L93 Difference]: Finished difference Result 340 states and 366 transitions. [2020-12-22 19:28:41,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-12-22 19:28:41,229 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 46 [2020-12-22 19:28:41,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:28:41,231 INFO L225 Difference]: With dead ends: 340 [2020-12-22 19:28:41,232 INFO L226 Difference]: Without dead ends: 340 [2020-12-22 19:28:41,233 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 23 SyntacticMatches, 5 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3069 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=1229, Invalid=8671, Unknown=0, NotChecked=0, Total=9900 [2020-12-22 19:28:41,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-12-22 19:28:41,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 165. [2020-12-22 19:28:41,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-12-22 19:28:41,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 192 transitions. [2020-12-22 19:28:41,238 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 192 transitions. Word has length 46 [2020-12-22 19:28:41,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:28:41,239 INFO L481 AbstractCegarLoop]: Abstraction has 165 states and 192 transitions. [2020-12-22 19:28:41,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-12-22 19:28:41,239 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 192 transitions. [2020-12-22 19:28:41,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-22 19:28:41,239 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:28:41,240 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:28:41,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:28:41,453 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:28:41,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:28:41,454 INFO L82 PathProgramCache]: Analyzing trace with hash -906319157, now seen corresponding path program 1 times [2020-12-22 19:28:41,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:28:41,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750687112] [2020-12-22 19:28:41,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:28:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:28:41,871 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-22 19:28:41,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750687112] [2020-12-22 19:28:41,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44743276] [2020-12-22 19:28:41,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:28:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:28:41,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 55 conjunts are in the unsatisfiable core [2020-12-22 19:28:41,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:28:41,971 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 19:28:41,972 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:41,977 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:41,978 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:28:41,978 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-22 19:28:42,048 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-22 19:28:42,049 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:42,075 INFO L625 ElimStorePlain]: treesize reduction 8, result has 73.3 percent of original size [2020-12-22 19:28:42,075 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:28:42,076 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:22 [2020-12-22 19:28:42,141 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:42,141 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 19:28:42,143 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:28:42,144 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:42,160 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:42,161 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:28:42,161 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:31 [2020-12-22 19:28:42,213 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_71|], 2=[|v_#memory_int_41|]} [2020-12-22 19:28:42,219 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 19:28:42,219 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:42,268 INFO L625 ElimStorePlain]: treesize reduction 5, result has 92.2 percent of original size [2020-12-22 19:28:42,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:28:42,275 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 27 treesize of output 11 [2020-12-22 19:28:42,277 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:42,296 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:42,297 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:28:42,298 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:68, output treesize:43 [2020-12-22 19:28:42,353 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2020-12-22 19:28:42,354 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:42,366 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:42,367 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:28:42,367 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:46, output treesize:25 [2020-12-22 19:28:42,461 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:28:42,462 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:42,476 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:42,477 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:28:42,477 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2020-12-22 19:28:42,571 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:42,571 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 19:28:42,573 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:28:42,574 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:28:42,576 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:42,597 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:42,598 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:28:42,598 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:45 [2020-12-22 19:28:42,663 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_72|], 6=[|v_#memory_int_43|]} [2020-12-22 19:28:42,668 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 19:28:42,668 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:42,698 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:42,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:28:42,706 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2020-12-22 19:28:42,707 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:42,732 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:42,734 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:28:42,734 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:77, output treesize:63 [2020-12-22 19:28:42,804 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 41 treesize of output 17 [2020-12-22 19:28:42,805 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:42,826 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:42,827 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:28:42,828 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:72, output treesize:45 [2020-12-22 19:28:42,983 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 0 case distinctions, treesize of input 26 treesize of output 28 [2020-12-22 19:28:42,985 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:43,010 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:43,012 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:28:43,013 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:56, output treesize:52 [2020-12-22 19:28:43,119 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:43,120 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 37 [2020-12-22 19:28:43,121 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:28:43,122 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:28:43,123 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:28:43,125 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:43,157 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:43,159 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 19:28:43,159 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:57, output treesize:49 [2020-12-22 19:28:43,239 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_73|], 12=[|v_#memory_int_45|]} [2020-12-22 19:28:43,244 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 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 19:28:43,244 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:43,278 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:43,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:28:43,286 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2020-12-22 19:28:43,287 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:43,315 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:43,317 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:28:43,318 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:81, output treesize:67 [2020-12-22 19:28:43,403 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 40 treesize of output 16 [2020-12-22 19:28:43,404 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:43,429 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:43,432 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 19:28:43,432 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:76, output treesize:49 [2020-12-22 19:28:43,611 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2020-12-22 19:28:43,613 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:43,639 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:43,643 INFO L547 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2020-12-22 19:28:43,644 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:60, output treesize:56 [2020-12-22 19:28:43,859 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2020-12-22 19:28:43,862 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:28:43,877 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:28:43,879 INFO L547 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:28:43,880 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:60, output treesize:3 [2020-12-22 19:28:43,939 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:28:43,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:28:43,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 22] total 40 [2020-12-22 19:28:43,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955538683] [2020-12-22 19:28:43,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-12-22 19:28:43,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:28:43,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-12-22 19:28:43,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1361, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 19:28:43,941 INFO L87 Difference]: Start difference. First operand 165 states and 192 transitions. Second operand 40 states. [2020-12-22 19:28:57,947 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-12-22 19:29:07,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:29:07,281 INFO L93 Difference]: Finished difference Result 296 states and 323 transitions. [2020-12-22 19:29:07,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-12-22 19:29:07,281 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 47 [2020-12-22 19:29:07,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:29:07,283 INFO L225 Difference]: With dead ends: 296 [2020-12-22 19:29:07,283 INFO L226 Difference]: Without dead ends: 296 [2020-12-22 19:29:07,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2426 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=1039, Invalid=6615, Unknown=2, NotChecked=0, Total=7656 [2020-12-22 19:29:07,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-12-22 19:29:07,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 156. [2020-12-22 19:29:07,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-12-22 19:29:07,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 182 transitions. [2020-12-22 19:29:07,290 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 182 transitions. Word has length 47 [2020-12-22 19:29:07,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:29:07,290 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 182 transitions. [2020-12-22 19:29:07,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-12-22 19:29:07,290 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 182 transitions. [2020-12-22 19:29:07,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 19:29:07,291 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:29:07,291 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:29:07,504 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2020-12-22 19:29:07,504 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:29:07,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:29:07,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1828266029, now seen corresponding path program 1 times [2020-12-22 19:29:07,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:29:07,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876326942] [2020-12-22 19:29:07,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:29:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:29:08,158 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:29:08,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876326942] [2020-12-22 19:29:08,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091557856] [2020-12-22 19:29:08,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:29:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:29:08,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 84 conjunts are in the unsatisfiable core [2020-12-22 19:29:08,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:29:08,250 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 19:29:08,251 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:08,255 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:08,256 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:29:08,256 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-22 19:29:08,418 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:08,419 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 19:29:08,420 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:29:08,422 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:08,435 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:08,435 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:29:08,435 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2020-12-22 19:29:08,455 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 19:29:08,456 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:08,472 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:08,476 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 19:29:08,477 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:08,491 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:08,492 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:29:08,492 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:40, output treesize:29 [2020-12-22 19:29:08,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:29:08,679 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 31 treesize of output 15 [2020-12-22 19:29:08,680 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:08,696 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:08,700 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 30 treesize of output 14 [2020-12-22 19:29:08,701 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:08,721 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:08,722 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:29:08,722 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:63, output treesize:25 [2020-12-22 19:29:08,839 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:29:08,853 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:08,854 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 29 treesize of output 40 [2020-12-22 19:29:08,855 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:08,873 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:08,878 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 28 treesize of output 23 [2020-12-22 19:29:08,879 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:08,896 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:08,898 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:29:08,898 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:59, output treesize:34 [2020-12-22 19:29:09,110 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_int_47|], 5=[|v_#memory_$Pointer$.base_77|, |v_#memory_$Pointer$.offset_55|]} [2020-12-22 19:29:09,115 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 35 treesize of output 23 [2020-12-22 19:29:09,116 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:09,139 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:09,191 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:09,191 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 153 treesize of output 160 [2020-12-22 19:29:09,195 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-22 19:29:09,195 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:29:09,196 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:29:09,197 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:29:09,198 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 19:29:09,198 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 19:29:09,199 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 19:29:09,200 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 19:29:09,201 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 19:29:09,201 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 19:29:09,202 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-22 19:29:09,203 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:29:09,205 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:29:09,220 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:09,268 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:09,269 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 97 treesize of output 186 [2020-12-22 19:29:09,272 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:09,283 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:09,284 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:29:09,284 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:175, output treesize:45 [2020-12-22 19:29:10,091 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:29:10,109 INFO L348 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2020-12-22 19:29:10,109 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 56 [2020-12-22 19:29:10,111 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:29:10,112 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:29:10,113 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 19:29:10,144 INFO L625 ElimStorePlain]: treesize reduction 8, result has 86.9 percent of original size [2020-12-22 19:29:10,175 INFO L348 Elim1Store]: treesize reduction 12, result has 58.6 percent of original size [2020-12-22 19:29:10,176 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 38 [2020-12-22 19:29:10,177 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:10,186 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:10,187 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:29:10,187 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:90, output treesize:25 [2020-12-22 19:29:10,388 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:10,389 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 37 [2020-12-22 19:29:10,391 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:10,399 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:10,400 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:29:10,400 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:29, output treesize:3 [2020-12-22 19:29:10,420 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:29:10,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:29:10,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 24] total 43 [2020-12-22 19:29:10,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716786119] [2020-12-22 19:29:10,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-12-22 19:29:10,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:29:10,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-12-22 19:29:10,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1684, Unknown=0, NotChecked=0, Total=1806 [2020-12-22 19:29:10,422 INFO L87 Difference]: Start difference. First operand 156 states and 182 transitions. Second operand 43 states. [2020-12-22 19:29:11,724 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2020-12-22 19:29:14,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:29:14,132 INFO L93 Difference]: Finished difference Result 200 states and 208 transitions. [2020-12-22 19:29:14,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-12-22 19:29:14,133 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 48 [2020-12-22 19:29:14,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:29:14,134 INFO L225 Difference]: With dead ends: 200 [2020-12-22 19:29:14,134 INFO L226 Difference]: Without dead ends: 200 [2020-12-22 19:29:14,135 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1280 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=473, Invalid=4783, Unknown=0, NotChecked=0, Total=5256 [2020-12-22 19:29:14,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-12-22 19:29:14,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 138. [2020-12-22 19:29:14,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-12-22 19:29:14,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 150 transitions. [2020-12-22 19:29:14,138 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 150 transitions. Word has length 48 [2020-12-22 19:29:14,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:29:14,139 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 150 transitions. [2020-12-22 19:29:14,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-12-22 19:29:14,139 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 150 transitions. [2020-12-22 19:29:14,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 19:29:14,139 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:29:14,140 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:29:14,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:29:14,356 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:29:14,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:29:14,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1991879104, now seen corresponding path program 2 times [2020-12-22 19:29:14,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:29:14,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950381843] [2020-12-22 19:29:14,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:29:14,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:29:15,319 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:29:15,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950381843] [2020-12-22 19:29:15,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415309408] [2020-12-22 19:29:15,320 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 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:29:15,411 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 19:29:15,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:29:15,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 91 conjunts are in the unsatisfiable core [2020-12-22 19:29:15,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:29:15,422 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 19:29:15,423 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:15,427 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:15,428 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:29:15,428 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-22 19:29:15,626 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:15,626 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 19:29:15,628 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:29:15,629 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:15,648 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:15,649 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:29:15,649 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:30 [2020-12-22 19:29:15,738 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:29:15,739 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:15,785 INFO L625 ElimStorePlain]: treesize reduction 5, result has 90.7 percent of original size [2020-12-22 19:29:15,790 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 19:29:15,791 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:15,812 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:15,814 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:29:15,814 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:58, output treesize:48 [2020-12-22 19:29:16,089 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_int_48|], 2=[|v_#memory_$Pointer$.offset_57|, |v_#memory_$Pointer$.base_79|]} [2020-12-22 19:29:16,095 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-22 19:29:16,096 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:16,182 INFO L625 ElimStorePlain]: treesize reduction 3, result has 97.1 percent of original size [2020-12-22 19:29:16,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:29:16,189 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 34 treesize of output 16 [2020-12-22 19:29:16,191 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:16,224 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:16,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:29:16,232 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 46 treesize of output 22 [2020-12-22 19:29:16,234 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:16,259 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:16,261 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:29:16,261 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:107, output treesize:70 [2020-12-22 19:29:16,376 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:16,377 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 22 treesize of output 32 [2020-12-22 19:29:16,378 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:29:16,378 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:29:16,381 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:16,406 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:16,408 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 19:29:16,408 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:75, output treesize:68 [2020-12-22 19:29:16,466 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_int_49|], 3=[|v_#memory_$Pointer$.offset_58|, |v_#memory_$Pointer$.base_80|]} [2020-12-22 19:29:16,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:29:16,473 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 27 treesize of output 11 [2020-12-22 19:29:16,474 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:16,502 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:16,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:29:16,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:29:16,511 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 19:29:16,512 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:16,537 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:16,541 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:29:16,550 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 19:29:16,563 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:16,563 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 1 case distinctions, treesize of input 34 treesize of output 49 [2020-12-22 19:29:16,565 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-12-22 19:29:16,565 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:29:16,567 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:16,616 INFO L625 ElimStorePlain]: treesize reduction 25, result has 68.4 percent of original size [2020-12-22 19:29:16,618 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:29:16,618 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:101, output treesize:48 [2020-12-22 19:29:16,851 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_59|, |v_#memory_int_50|], 5=[|v_#memory_$Pointer$.base_81|]} [2020-12-22 19:29:16,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:29:16,858 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 23 treesize of output 11 [2020-12-22 19:29:16,859 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:16,882 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:16,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:29:16,888 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 23 treesize of output 22 [2020-12-22 19:29:16,890 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:16,911 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:16,971 INFO L348 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2020-12-22 19:29:16,972 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 60 [2020-12-22 19:29:16,973 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:29:16,974 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:29:16,976 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:29:17,008 INFO L625 ElimStorePlain]: treesize reduction 8, result has 86.7 percent of original size [2020-12-22 19:29:17,009 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:29:17,010 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:102, output treesize:52 [2020-12-22 19:29:17,189 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_60|], 5=[|v_#memory_$Pointer$.base_82|], 6=[|v_#memory_int_51|]} [2020-12-22 19:29:17,193 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 21 treesize of output 20 [2020-12-22 19:29:17,195 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:17,227 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:17,261 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:17,262 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 77 [2020-12-22 19:29:17,264 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:17,323 INFO L625 ElimStorePlain]: treesize reduction 8, result has 91.8 percent of original size [2020-12-22 19:29:17,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:29:17,330 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 0 case distinctions, treesize of input 38 treesize of output 25 [2020-12-22 19:29:17,334 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:17,356 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:17,357 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:29:17,358 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:97, output treesize:61 [2020-12-22 19:29:17,720 INFO L443 ElimStorePlain]: Different costs {6=[|v_#memory_int_52|, |v_#memory_$Pointer$.offset_61|], 11=[|v_#memory_$Pointer$.base_83|]} [2020-12-22 19:29:17,765 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:17,765 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 2 case distinctions, treesize of input 80 treesize of output 228 [2020-12-22 19:29:17,767 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:17,900 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2020-12-22 19:29:17,901 INFO L625 ElimStorePlain]: treesize reduction 94, result has 79.0 percent of original size [2020-12-22 19:29:17,960 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:17,960 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 289 treesize of output 366 [2020-12-22 19:29:17,963 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:18,074 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2020-12-22 19:29:18,075 INFO L625 ElimStorePlain]: treesize reduction 68, result has 78.2 percent of original size [2020-12-22 19:29:18,130 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:18,131 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 234 treesize of output 174 [2020-12-22 19:29:18,135 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-22 19:29:18,135 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:29:18,137 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:18,265 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-12-22 19:29:18,266 INFO L625 ElimStorePlain]: treesize reduction 137, result has 59.8 percent of original size [2020-12-22 19:29:18,268 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:29:18,268 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:29:18,269 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:29:18,269 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:29:18,270 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:305, output treesize:199 [2020-12-22 19:29:18,271 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:29:18,271 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:29:18,272 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:29:18,431 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:29:18,431 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:29:18,801 WARN L197 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-12-22 19:29:19,519 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-22 19:29:19,921 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2020-12-22 19:29:19,928 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-22 19:29:19,931 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-22 19:29:19,934 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 4, 7, 1] term [2020-12-22 19:29:19,934 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-22 19:29:19,945 INFO L443 ElimStorePlain]: Different costs {0=[v_prenex_16], 1=[v_prenex_15, v_prenex_19], 2=[v_prenex_22, |#memory_$Pointer$.offset|], 3=[v_prenex_18], 5=[|#memory_$Pointer$.base|, v_prenex_21]} [2020-12-22 19:29:19,953 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-22 19:29:19,954 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:20,062 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-12-22 19:29:20,062 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:20,075 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:20,076 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 36 [2020-12-22 19:29:20,077 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:29:20,078 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:29:20,079 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 19:29:20,286 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 123 [2020-12-22 19:29:20,287 INFO L625 ElimStorePlain]: treesize reduction 8, result has 97.9 percent of original size [2020-12-22 19:29:20,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:29:20,296 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 30 treesize of output 10 [2020-12-22 19:29:20,298 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:20,397 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:20,407 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 32 treesize of output 10 [2020-12-22 19:29:20,409 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:20,500 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:20,508 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 32 treesize of output 10 [2020-12-22 19:29:20,510 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:20,594 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:20,618 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:20,618 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 51 [2020-12-22 19:29:20,620 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:29:20,620 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:29:20,622 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:29:20,622 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:29:20,622 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:29:20,783 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-12-22 19:29:20,784 INFO L625 ElimStorePlain]: treesize reduction 16, result has 94.1 percent of original size [2020-12-22 19:29:20,818 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:20,818 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 93 treesize of output 71 [2020-12-22 19:29:20,821 INFO L547 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 19:29:20,958 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-12-22 19:29:20,959 INFO L625 ElimStorePlain]: treesize reduction 4, result has 97.9 percent of original size [2020-12-22 19:29:20,987 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:20,988 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 83 treesize of output 75 [2020-12-22 19:29:20,991 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-22 19:29:20,991 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 19:29:20,992 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 19:29:20,992 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-22 19:29:20,993 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 19:29:20,993 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 19:29:20,994 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 19:29:20,995 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-22 19:29:20,995 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 19:29:20,998 INFO L547 ElimStorePlain]: Start of recursive call 9: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 19:29:21,119 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2020-12-22 19:29:21,120 INFO L625 ElimStorePlain]: treesize reduction 4, result has 97.0 percent of original size [2020-12-22 19:29:21,124 INFO L547 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 8 dim-2 vars, End of recursive call: 11 dim-0 vars, and 4 xjuncts. [2020-12-22 19:29:21,124 INFO L244 ElimStorePlain]: Needed 9 recursive calls to eliminate 14 variables, input treesize:420, output treesize:131 [2020-12-22 19:29:21,662 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 1] term [2020-12-22 19:29:21,662 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:29:21,851 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:21,852 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 37 [2020-12-22 19:29:21,853 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:21,861 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:21,863 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:29:21,863 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:29, output treesize:3 [2020-12-22 19:29:21,900 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:29:21,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:29:21,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 28] total 50 [2020-12-22 19:29:21,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067118270] [2020-12-22 19:29:21,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 50 states [2020-12-22 19:29:21,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:29:21,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2020-12-22 19:29:21,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=2273, Unknown=0, NotChecked=0, Total=2450 [2020-12-22 19:29:21,902 INFO L87 Difference]: Start difference. First operand 138 states and 150 transitions. Second operand 50 states. [2020-12-22 19:29:23,265 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2020-12-22 19:29:31,147 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 70 [2020-12-22 19:29:35,584 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2020-12-22 19:29:35,982 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 71 [2020-12-22 19:29:36,896 WARN L197 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 79 [2020-12-22 19:29:37,456 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 72 [2020-12-22 19:29:37,820 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 70 [2020-12-22 19:29:38,267 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 70 [2020-12-22 19:29:38,775 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 69 [2020-12-22 19:29:39,196 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 75 [2020-12-22 19:29:39,586 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-12-22 19:29:39,874 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 76 [2020-12-22 19:29:40,190 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-12-22 19:29:40,685 WARN L197 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2020-12-22 19:29:41,582 WARN L197 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-12-22 19:29:45,488 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-12-22 19:29:45,779 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 69 [2020-12-22 19:29:49,962 WARN L197 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2020-12-22 19:29:49,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:29:49,968 INFO L93 Difference]: Finished difference Result 306 states and 317 transitions. [2020-12-22 19:29:49,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-12-22 19:29:49,968 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 51 [2020-12-22 19:29:49,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:29:49,970 INFO L225 Difference]: With dead ends: 306 [2020-12-22 19:29:49,970 INFO L226 Difference]: Without dead ends: 306 [2020-12-22 19:29:49,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 23 SyntacticMatches, 6 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2381 ImplicationChecksByTransitivity, 22.3s TimeCoverageRelationStatistics Valid=803, Invalid=7933, Unknown=6, NotChecked=0, Total=8742 [2020-12-22 19:29:49,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-12-22 19:29:49,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 162. [2020-12-22 19:29:49,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-12-22 19:29:49,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 175 transitions. [2020-12-22 19:29:49,974 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 175 transitions. Word has length 51 [2020-12-22 19:29:49,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:29:49,974 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 175 transitions. [2020-12-22 19:29:49,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 50 states. [2020-12-22 19:29:49,974 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 175 transitions. [2020-12-22 19:29:49,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-22 19:29:49,975 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:29:49,975 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:29:50,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2020-12-22 19:29:50,179 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:29:50,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:29:50,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1359619190, now seen corresponding path program 2 times [2020-12-22 19:29:50,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:29:50,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871897419] [2020-12-22 19:29:50,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:29:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:29:51,230 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:29:51,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871897419] [2020-12-22 19:29:51,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110737686] [2020-12-22 19:29:51,231 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 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:29:51,328 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 19:29:51,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:29:51,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 68 conjunts are in the unsatisfiable core [2020-12-22 19:29:51,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:29:51,336 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 19:29:51,337 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:51,342 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:51,343 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:29:51,343 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-22 19:29:51,570 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:51,571 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 19:29:51,572 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:29:51,574 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:51,596 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:51,597 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:29:51,597 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:30 [2020-12-22 19:29:51,685 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-22 19:29:51,686 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:51,712 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:51,717 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 19:29:51,718 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:51,741 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:51,743 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 19:29:51,743 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:56, output treesize:48 [2020-12-22 19:29:52,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:29:52,052 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 46 treesize of output 22 [2020-12-22 19:29:52,054 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:52,085 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:52,090 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 34 treesize of output 16 [2020-12-22 19:29:52,091 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:52,115 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:52,117 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 19:29:52,117 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:93, output treesize:51 [2020-12-22 19:29:52,257 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:52,257 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 28 treesize of output 99 [2020-12-22 19:29:52,259 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:29:52,259 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:29:52,261 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:52,295 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:52,296 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 19:29:52,297 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:74, output treesize:82 [2020-12-22 19:29:52,446 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:52,446 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 54 treesize of output 69 [2020-12-22 19:29:52,449 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:52,494 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:52,498 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 32 treesize of output 25 [2020-12-22 19:29:52,500 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:52,542 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:52,545 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 19:29:52,545 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:108, output treesize:76 [2020-12-22 19:29:58,110 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_65|], 6=[|v_#memory_$Pointer$.base_87|]} [2020-12-22 19:29:58,144 INFO L348 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2020-12-22 19:29:58,144 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 119 treesize of output 93 [2020-12-22 19:29:58,146 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:29:58,147 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:29:58,148 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 19:29:58,232 INFO L625 ElimStorePlain]: treesize reduction 10, result has 93.0 percent of original size [2020-12-22 19:29:58,316 INFO L348 Elim1Store]: treesize reduction 48, result has 53.4 percent of original size [2020-12-22 19:29:58,317 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 107 treesize of output 83 [2020-12-22 19:29:58,319 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:29:58,320 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 19:29:58,320 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:29:58,322 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:29:58,355 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:58,357 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 19:29:58,358 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:169, output treesize:85 [2020-12-22 19:29:59,371 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:59,371 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 219 [2020-12-22 19:29:59,373 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 19:29:59,374 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 19:29:59,375 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:29:59,377 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:29:59,424 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:29:59,426 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 19:29:59,427 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:150, output treesize:180 [2020-12-22 19:30:00,404 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_66|], 6=[|v_#memory_$Pointer$.base_88|]} [2020-12-22 19:30:00,434 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:30:00,434 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 139 treesize of output 142 [2020-12-22 19:30:00,436 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:30:00,438 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:30:00,439 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 19:30:00,580 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-12-22 19:30:00,580 INFO L625 ElimStorePlain]: treesize reduction 26, result has 87.1 percent of original size [2020-12-22 19:30:00,653 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:30:00,653 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 148 [2020-12-22 19:30:00,656 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 19:30:00,657 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:30:00,658 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:30:00,659 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 19:30:00,661 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 19:30:00,661 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:30:00,662 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 19:30:00,664 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:30:00,719 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:30:00,723 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 19:30:00,723 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:206, output treesize:132