/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-17 23:53:24,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-17 23:53:24,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-17 23:53:24,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-17 23:53:24,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-17 23:53:24,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-17 23:53:24,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-17 23:53:24,458 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-01-17 23:53:24,486 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-17 23:53:24,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-17 23:53:24,487 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-17 23:53:24,487 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-17 23:53:24,488 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-17 23:53:24,488 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-17 23:53:24,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-17 23:53:24,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-17 23:53:24,489 INFO L138 SettingsManager]: * Use SBE=true [2022-01-17 23:53:24,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-17 23:53:24,489 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-17 23:53:24,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-17 23:53:24,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-17 23:53:24,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-17 23:53:24,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-17 23:53:24,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-17 23:53:24,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-17 23:53:24,490 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-17 23:53:24,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-17 23:53:24,490 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-17 23:53:24,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-17 23:53:24,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-17 23:53:24,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-17 23:53:24,491 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-17 23:53:24,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-17 23:53:24,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:53:24,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-17 23:53:24,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-17 23:53:24,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-17 23:53:24,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-17 23:53:24,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-17 23:53:24,492 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-17 23:53:24,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-17 23:53:24,492 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-17 23:53:24,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-17 23:53:24,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-17 23:53:24,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-17 23:53:24,709 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-17 23:53:24,709 INFO L275 PluginConnector]: CDTParser initialized [2022-01-17 23:53:24,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2022-01-17 23:53:24,770 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b84b86f39/33846d162a1e45889b9c755208ef1ee5/FLAGfb96dd634 [2022-01-17 23:53:25,170 INFO L306 CDTParser]: Found 1 translation units. [2022-01-17 23:53:25,170 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2022-01-17 23:53:25,180 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b84b86f39/33846d162a1e45889b9c755208ef1ee5/FLAGfb96dd634 [2022-01-17 23:53:25,197 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b84b86f39/33846d162a1e45889b9c755208ef1ee5 [2022-01-17 23:53:25,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-17 23:53:25,200 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-17 23:53:25,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-17 23:53:25,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-17 23:53:25,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-17 23:53:25,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:53:25" (1/1) ... [2022-01-17 23:53:25,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77e8ac67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:53:25, skipping insertion in model container [2022-01-17 23:53:25,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:53:25" (1/1) ... [2022-01-17 23:53:25,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-17 23:53:25,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-17 23:53:25,376 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128] [2022-01-17 23:53:25,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:53:25,532 INFO L203 MainTranslator]: Completed pre-run [2022-01-17 23:53:25,544 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128] [2022-01-17 23:53:25,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:53:25,610 INFO L208 MainTranslator]: Completed translation [2022-01-17 23:53:25,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:53:25 WrapperNode [2022-01-17 23:53:25,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-17 23:53:25,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-17 23:53:25,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-17 23:53:25,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-17 23:53:25,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:53:25" (1/1) ... [2022-01-17 23:53:25,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:53:25" (1/1) ... [2022-01-17 23:53:25,648 INFO L137 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 118 [2022-01-17 23:53:25,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-17 23:53:25,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-17 23:53:25,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-17 23:53:25,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-17 23:53:25,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:53:25" (1/1) ... [2022-01-17 23:53:25,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:53:25" (1/1) ... [2022-01-17 23:53:25,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:53:25" (1/1) ... [2022-01-17 23:53:25,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:53:25" (1/1) ... [2022-01-17 23:53:25,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:53:25" (1/1) ... [2022-01-17 23:53:25,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:53:25" (1/1) ... [2022-01-17 23:53:25,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:53:25" (1/1) ... [2022-01-17 23:53:25,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-17 23:53:25,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-17 23:53:25,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-17 23:53:25,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-17 23:53:25,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:53:25" (1/1) ... [2022-01-17 23:53:25,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:53:25,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:53:25,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-17 23:53:25,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-17 23:53:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-17 23:53:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2022-01-17 23:53:25,742 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2022-01-17 23:53:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-17 23:53:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-17 23:53:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-17 23:53:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-17 23:53:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-17 23:53:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-17 23:53:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-17 23:53:25,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-17 23:53:25,744 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-17 23:53:25,835 INFO L234 CfgBuilder]: Building ICFG [2022-01-17 23:53:25,836 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-17 23:53:26,045 INFO L275 CfgBuilder]: Performing block encoding [2022-01-17 23:53:26,053 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-17 23:53:26,053 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-17 23:53:26,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:53:26 BoogieIcfgContainer [2022-01-17 23:53:26,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-17 23:53:26,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-17 23:53:26,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-17 23:53:26,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-17 23:53:26,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.01 11:53:25" (1/3) ... [2022-01-17 23:53:26,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20aad34c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:53:26, skipping insertion in model container [2022-01-17 23:53:26,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:53:25" (2/3) ... [2022-01-17 23:53:26,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20aad34c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:53:26, skipping insertion in model container [2022-01-17 23:53:26,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:53:26" (3/3) ... [2022-01-17 23:53:26,065 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2022-01-17 23:53:26,072 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-17 23:53:26,072 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-17 23:53:26,072 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-17 23:53:26,072 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-17 23:53:26,138 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,138 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,139 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,139 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,139 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,139 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,139 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,139 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,140 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,140 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,140 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,140 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,140 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,140 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,141 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,141 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,141 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,141 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,141 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,141 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,141 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,141 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,142 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,142 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,142 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,142 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,142 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,142 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,142 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,142 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,142 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,142 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,143 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,143 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,143 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,143 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,143 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,143 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,143 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,143 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,144 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,144 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,144 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,144 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,144 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,144 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,144 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,145 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,145 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,145 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,145 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,145 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,145 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,146 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,146 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,146 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,146 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,146 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,146 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,146 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,147 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,147 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,151 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,152 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,152 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,152 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,153 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,153 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,153 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,154 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,154 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,154 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,155 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,155 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,156 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,156 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,156 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,156 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,156 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,156 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,157 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,157 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,157 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,157 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,157 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,158 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,158 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,158 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,158 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,159 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,159 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,160 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,160 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,162 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,168 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,169 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,169 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,169 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,169 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,170 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,170 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,170 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,171 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,171 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,172 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,172 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,172 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,172 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,172 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,172 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,173 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,173 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,173 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,174 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,174 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,174 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,174 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,174 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,174 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,175 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,175 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,176 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,177 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,177 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,177 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,177 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,177 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,177 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,178 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,178 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,178 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,178 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,178 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,178 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,178 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,178 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,179 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,179 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,179 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,179 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,179 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,179 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,179 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,179 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,179 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,180 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,180 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,180 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,180 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,180 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,180 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,180 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,181 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,181 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,181 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,181 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,181 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,181 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,181 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,181 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,182 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,182 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,182 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,183 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,183 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,183 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,183 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,183 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,183 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,183 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,196 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,196 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,196 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,196 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,197 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,197 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,197 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,197 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,197 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,197 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,197 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,197 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,197 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,198 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,198 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,198 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,198 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,198 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,198 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,198 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:53:26,200 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-17 23:53:26,246 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-17 23:53:26,252 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-17 23:53:26,252 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-17 23:53:26,263 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 136 places, 142 transitions, 289 flow [2022-01-17 23:53:26,374 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1949 states, 1947 states have (on average 2.12788906009245) internal successors, (4143), 1948 states have internal predecessors, (4143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:26,381 INFO L276 IsEmpty]: Start isEmpty. Operand has 1949 states, 1947 states have (on average 2.12788906009245) internal successors, (4143), 1948 states have internal predecessors, (4143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:26,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-17 23:53:26,394 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:53:26,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:53:26,395 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:53:26,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:53:26,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1865521660, now seen corresponding path program 1 times [2022-01-17 23:53:26,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:53:26,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615231309] [2022-01-17 23:53:26,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:53:26,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:53:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:53:26,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:53:26,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:53:26,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615231309] [2022-01-17 23:53:26,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615231309] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:53:26,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:53:26,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-17 23:53:26,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459581741] [2022-01-17 23:53:26,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:53:26,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-17 23:53:26,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:53:26,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-17 23:53:26,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-17 23:53:26,650 INFO L87 Difference]: Start difference. First operand has 1949 states, 1947 states have (on average 2.12788906009245) internal successors, (4143), 1948 states have internal predecessors, (4143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:26,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:53:26,712 INFO L93 Difference]: Finished difference Result 1877 states and 3836 transitions. [2022-01-17 23:53:26,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-17 23:53:26,714 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-17 23:53:26,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:53:26,741 INFO L225 Difference]: With dead ends: 1877 [2022-01-17 23:53:26,741 INFO L226 Difference]: Without dead ends: 1877 [2022-01-17 23:53:26,743 INFO L932 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 [2022-01-17 23:53:26,745 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:53:26,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:53:26,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states. [2022-01-17 23:53:26,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1877. [2022-01-17 23:53:26,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1875 states have (on average 2.0458666666666665) internal successors, (3836), 1876 states have internal predecessors, (3836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:26,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 3836 transitions. [2022-01-17 23:53:26,869 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 3836 transitions. Word has length 59 [2022-01-17 23:53:26,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:53:26,870 INFO L470 AbstractCegarLoop]: Abstraction has 1877 states and 3836 transitions. [2022-01-17 23:53:26,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:26,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 3836 transitions. [2022-01-17 23:53:26,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-17 23:53:26,881 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:53:26,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:53:26,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-17 23:53:26,882 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:53:26,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:53:26,885 INFO L85 PathProgramCache]: Analyzing trace with hash 326788120, now seen corresponding path program 1 times [2022-01-17 23:53:26,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:53:26,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506454804] [2022-01-17 23:53:26,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:53:26,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:53:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:53:27,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:53:27,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:53:27,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506454804] [2022-01-17 23:53:27,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506454804] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:53:27,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:53:27,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:53:27,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217188602] [2022-01-17 23:53:27,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:53:27,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:53:27,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:53:27,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:53:27,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:53:27,097 INFO L87 Difference]: Start difference. First operand 1877 states and 3836 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:27,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:53:27,566 INFO L93 Difference]: Finished difference Result 5657 states and 11744 transitions. [2022-01-17 23:53:27,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:53:27,566 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-17 23:53:27,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:53:27,592 INFO L225 Difference]: With dead ends: 5657 [2022-01-17 23:53:27,592 INFO L226 Difference]: Without dead ends: 5657 [2022-01-17 23:53:27,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:53:27,598 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 589 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:53:27,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [589 Valid, 2121 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:53:27,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5657 states. [2022-01-17 23:53:27,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5657 to 2135. [2022-01-17 23:53:27,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2135 states, 2133 states have (on average 2.0595405532114395) internal successors, (4393), 2134 states have internal predecessors, (4393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:27,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 4393 transitions. [2022-01-17 23:53:27,695 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 4393 transitions. Word has length 61 [2022-01-17 23:53:27,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:53:27,695 INFO L470 AbstractCegarLoop]: Abstraction has 2135 states and 4393 transitions. [2022-01-17 23:53:27,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:27,695 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 4393 transitions. [2022-01-17 23:53:27,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-17 23:53:27,698 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:53:27,698 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:53:27,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-17 23:53:27,698 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:53:27,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:53:27,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1938685600, now seen corresponding path program 1 times [2022-01-17 23:53:27,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:53:27,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569018709] [2022-01-17 23:53:27,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:53:27,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:53:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:53:27,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:53:27,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:53:27,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569018709] [2022-01-17 23:53:27,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569018709] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:53:27,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:53:27,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-17 23:53:27,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348761630] [2022-01-17 23:53:27,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:53:27,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-17 23:53:27,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:53:27,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-17 23:53:27,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:53:27,976 INFO L87 Difference]: Start difference. First operand 2135 states and 4393 transitions. Second operand has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:29,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:53:29,323 INFO L93 Difference]: Finished difference Result 6430 states and 13379 transitions. [2022-01-17 23:53:29,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-17 23:53:29,323 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-17 23:53:29,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:53:29,351 INFO L225 Difference]: With dead ends: 6430 [2022-01-17 23:53:29,352 INFO L226 Difference]: Without dead ends: 6430 [2022-01-17 23:53:29,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=589, Invalid=1861, Unknown=0, NotChecked=0, Total=2450 [2022-01-17 23:53:29,354 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 1547 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:53:29,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 2490 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:53:29,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6430 states. [2022-01-17 23:53:29,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6430 to 3623. [2022-01-17 23:53:29,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3623 states, 3621 states have (on average 2.0660038663352664) internal successors, (7481), 3622 states have internal predecessors, (7481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:29,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3623 states to 3623 states and 7481 transitions. [2022-01-17 23:53:29,478 INFO L78 Accepts]: Start accepts. Automaton has 3623 states and 7481 transitions. Word has length 61 [2022-01-17 23:53:29,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:53:29,479 INFO L470 AbstractCegarLoop]: Abstraction has 3623 states and 7481 transitions. [2022-01-17 23:53:29,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:29,479 INFO L276 IsEmpty]: Start isEmpty. Operand 3623 states and 7481 transitions. [2022-01-17 23:53:29,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:53:29,484 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:53:29,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:53:29,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-17 23:53:29,485 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:53:29,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:53:29,485 INFO L85 PathProgramCache]: Analyzing trace with hash -432958387, now seen corresponding path program 1 times [2022-01-17 23:53:29,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:53:29,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247778941] [2022-01-17 23:53:29,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:53:29,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:53:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:53:29,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:53:29,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:53:29,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247778941] [2022-01-17 23:53:29,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247778941] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:53:29,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:53:29,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-17 23:53:29,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667226486] [2022-01-17 23:53:29,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:53:29,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-17 23:53:29,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:53:29,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-17 23:53:29,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2022-01-17 23:53:29,919 INFO L87 Difference]: Start difference. First operand 3623 states and 7481 transitions. Second operand has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:32,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:53:32,715 INFO L93 Difference]: Finished difference Result 8900 states and 18300 transitions. [2022-01-17 23:53:32,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-17 23:53:32,716 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:53:32,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:53:32,750 INFO L225 Difference]: With dead ends: 8900 [2022-01-17 23:53:32,751 INFO L226 Difference]: Without dead ends: 8900 [2022-01-17 23:53:32,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1716 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1046, Invalid=4504, Unknown=0, NotChecked=0, Total=5550 [2022-01-17 23:53:32,753 INFO L933 BasicCegarLoop]: 455 mSDtfsCounter, 3901 mSDsluCounter, 3876 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3901 SdHoareTripleChecker+Valid, 4325 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:53:32,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3901 Valid, 4325 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:53:32,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8900 states. [2022-01-17 23:53:32,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8900 to 5530. [2022-01-17 23:53:32,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5530 states, 5528 states have (on average 2.0759768451519536) internal successors, (11476), 5529 states have internal predecessors, (11476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:32,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5530 states to 5530 states and 11476 transitions. [2022-01-17 23:53:32,906 INFO L78 Accepts]: Start accepts. Automaton has 5530 states and 11476 transitions. Word has length 78 [2022-01-17 23:53:32,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:53:32,906 INFO L470 AbstractCegarLoop]: Abstraction has 5530 states and 11476 transitions. [2022-01-17 23:53:32,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:32,907 INFO L276 IsEmpty]: Start isEmpty. Operand 5530 states and 11476 transitions. [2022-01-17 23:53:32,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:53:32,911 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:53:32,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:53:32,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-17 23:53:32,911 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:53:32,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:53:32,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1900567917, now seen corresponding path program 2 times [2022-01-17 23:53:32,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:53:32,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166417935] [2022-01-17 23:53:32,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:53:32,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:53:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:53:33,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:53:33,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:53:33,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166417935] [2022-01-17 23:53:33,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166417935] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:53:33,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:53:33,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-17 23:53:33,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966179567] [2022-01-17 23:53:33,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:53:33,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-17 23:53:33,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:53:33,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-17 23:53:33,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2022-01-17 23:53:33,249 INFO L87 Difference]: Start difference. First operand 5530 states and 11476 transitions. Second operand has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:36,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:53:36,421 INFO L93 Difference]: Finished difference Result 13090 states and 26982 transitions. [2022-01-17 23:53:36,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-01-17 23:53:36,421 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:53:36,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:53:36,454 INFO L225 Difference]: With dead ends: 13090 [2022-01-17 23:53:36,454 INFO L226 Difference]: Without dead ends: 13090 [2022-01-17 23:53:36,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2724 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1449, Invalid=6561, Unknown=0, NotChecked=0, Total=8010 [2022-01-17 23:53:36,457 INFO L933 BasicCegarLoop]: 449 mSDtfsCounter, 4458 mSDsluCounter, 4270 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4458 SdHoareTripleChecker+Valid, 4713 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:53:36,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4458 Valid, 4713 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:53:36,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13090 states. [2022-01-17 23:53:36,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13090 to 5536. [2022-01-17 23:53:36,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5536 states, 5534 states have (on average 2.0758944705457174) internal successors, (11488), 5535 states have internal predecessors, (11488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:36,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5536 states to 5536 states and 11488 transitions. [2022-01-17 23:53:36,684 INFO L78 Accepts]: Start accepts. Automaton has 5536 states and 11488 transitions. Word has length 78 [2022-01-17 23:53:36,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:53:36,685 INFO L470 AbstractCegarLoop]: Abstraction has 5536 states and 11488 transitions. [2022-01-17 23:53:36,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:36,686 INFO L276 IsEmpty]: Start isEmpty. Operand 5536 states and 11488 transitions. [2022-01-17 23:53:36,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:53:36,690 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:53:36,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:53:36,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-17 23:53:36,691 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:53:36,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:53:36,692 INFO L85 PathProgramCache]: Analyzing trace with hash -2057331115, now seen corresponding path program 3 times [2022-01-17 23:53:36,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:53:36,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138241529] [2022-01-17 23:53:36,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:53:36,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:53:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:53:36,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:53:36,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:53:36,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138241529] [2022-01-17 23:53:36,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138241529] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:53:36,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:53:36,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-17 23:53:36,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776895291] [2022-01-17 23:53:36,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:53:36,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-17 23:53:36,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:53:36,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-17 23:53:36,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2022-01-17 23:53:36,984 INFO L87 Difference]: Start difference. First operand 5536 states and 11488 transitions. Second operand has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:39,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:53:39,626 INFO L93 Difference]: Finished difference Result 10751 states and 22152 transitions. [2022-01-17 23:53:39,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-01-17 23:53:39,627 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:53:39,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:53:39,653 INFO L225 Difference]: With dead ends: 10751 [2022-01-17 23:53:39,654 INFO L226 Difference]: Without dead ends: 10751 [2022-01-17 23:53:39,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1922 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1227, Invalid=4935, Unknown=0, NotChecked=0, Total=6162 [2022-01-17 23:53:39,656 INFO L933 BasicCegarLoop]: 419 mSDtfsCounter, 4107 mSDsluCounter, 3212 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4107 SdHoareTripleChecker+Valid, 3627 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:53:39,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4107 Valid, 3627 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1132 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:53:39,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10751 states. [2022-01-17 23:53:39,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10751 to 6059. [2022-01-17 23:53:39,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6059 states, 6057 states have (on average 2.083209509658247) internal successors, (12618), 6058 states have internal predecessors, (12618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:39,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6059 states to 6059 states and 12618 transitions. [2022-01-17 23:53:39,809 INFO L78 Accepts]: Start accepts. Automaton has 6059 states and 12618 transitions. Word has length 78 [2022-01-17 23:53:39,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:53:39,809 INFO L470 AbstractCegarLoop]: Abstraction has 6059 states and 12618 transitions. [2022-01-17 23:53:39,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:39,810 INFO L276 IsEmpty]: Start isEmpty. Operand 6059 states and 12618 transitions. [2022-01-17 23:53:39,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:53:39,814 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:53:39,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:53:39,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-17 23:53:39,815 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:53:39,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:53:39,815 INFO L85 PathProgramCache]: Analyzing trace with hash -639973645, now seen corresponding path program 1 times [2022-01-17 23:53:39,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:53:39,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150418836] [2022-01-17 23:53:39,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:53:39,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:53:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:53:40,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:53:40,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:53:40,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150418836] [2022-01-17 23:53:40,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150418836] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:53:40,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:53:40,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-17 23:53:40,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84077868] [2022-01-17 23:53:40,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:53:40,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-17 23:53:40,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:53:40,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-17 23:53:40,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:53:40,002 INFO L87 Difference]: Start difference. First operand 6059 states and 12618 transitions. Second operand has 15 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:42,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:53:42,932 INFO L93 Difference]: Finished difference Result 15036 states and 31402 transitions. [2022-01-17 23:53:42,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-01-17 23:53:42,932 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:53:42,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:53:42,970 INFO L225 Difference]: With dead ends: 15036 [2022-01-17 23:53:42,970 INFO L226 Difference]: Without dead ends: 15036 [2022-01-17 23:53:42,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4516 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1974, Invalid=11136, Unknown=0, NotChecked=0, Total=13110 [2022-01-17 23:53:42,975 INFO L933 BasicCegarLoop]: 796 mSDtfsCounter, 1075 mSDsluCounter, 6162 mSDsCounter, 0 mSdLazyCounter, 2745 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 6955 SdHoareTripleChecker+Invalid, 2770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:53:42,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1075 Valid, 6955 Invalid, 2770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2745 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-17 23:53:42,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15036 states. [2022-01-17 23:53:43,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15036 to 6234. [2022-01-17 23:53:43,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6232 states have (on average 2.087772785622593) internal successors, (13011), 6233 states have internal predecessors, (13011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:43,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 13011 transitions. [2022-01-17 23:53:43,243 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 13011 transitions. Word has length 78 [2022-01-17 23:53:43,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:53:43,244 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 13011 transitions. [2022-01-17 23:53:43,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:43,244 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 13011 transitions. [2022-01-17 23:53:43,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:53:43,248 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:53:43,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:53:43,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-17 23:53:43,249 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:53:43,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:53:43,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1389519931, now seen corresponding path program 4 times [2022-01-17 23:53:43,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:53:43,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963460693] [2022-01-17 23:53:43,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:53:43,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:53:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:53:43,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:53:43,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:53:43,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963460693] [2022-01-17 23:53:43,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963460693] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:53:43,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:53:43,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-17 23:53:43,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035393491] [2022-01-17 23:53:43,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:53:43,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-17 23:53:43,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:53:43,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-17 23:53:43,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:53:43,425 INFO L87 Difference]: Start difference. First operand 6234 states and 13011 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:43,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:53:43,606 INFO L93 Difference]: Finished difference Result 8278 states and 17240 transitions. [2022-01-17 23:53:43,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-17 23:53:43,614 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:53:43,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:53:43,629 INFO L225 Difference]: With dead ends: 8278 [2022-01-17 23:53:43,630 INFO L226 Difference]: Without dead ends: 8278 [2022-01-17 23:53:43,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:53:43,630 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 388 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:53:43,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [388 Valid, 1065 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:53:43,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8278 states. [2022-01-17 23:53:43,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8278 to 6575. [2022-01-17 23:53:43,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6575 states, 6573 states have (on average 2.0827628175870987) internal successors, (13690), 6574 states have internal predecessors, (13690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:43,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6575 states to 6575 states and 13690 transitions. [2022-01-17 23:53:43,763 INFO L78 Accepts]: Start accepts. Automaton has 6575 states and 13690 transitions. Word has length 78 [2022-01-17 23:53:43,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:53:43,763 INFO L470 AbstractCegarLoop]: Abstraction has 6575 states and 13690 transitions. [2022-01-17 23:53:43,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:43,763 INFO L276 IsEmpty]: Start isEmpty. Operand 6575 states and 13690 transitions. [2022-01-17 23:53:43,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:53:43,768 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:53:43,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:53:43,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-17 23:53:43,768 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:53:43,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:53:43,769 INFO L85 PathProgramCache]: Analyzing trace with hash -230993537, now seen corresponding path program 2 times [2022-01-17 23:53:43,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:53:43,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117128807] [2022-01-17 23:53:43,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:53:43,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:53:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:53:43,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:53:43,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:53:43,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117128807] [2022-01-17 23:53:43,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117128807] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:53:43,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:53:43,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-17 23:53:43,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265994089] [2022-01-17 23:53:43,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:53:43,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-17 23:53:43,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:53:43,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-17 23:53:43,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-01-17 23:53:43,998 INFO L87 Difference]: Start difference. First operand 6575 states and 13690 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:46,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:53:46,936 INFO L93 Difference]: Finished difference Result 32822 states and 68435 transitions. [2022-01-17 23:53:46,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-01-17 23:53:46,937 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:53:46,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:53:47,010 INFO L225 Difference]: With dead ends: 32822 [2022-01-17 23:53:47,010 INFO L226 Difference]: Without dead ends: 32822 [2022-01-17 23:53:47,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4202 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2129, Invalid=9643, Unknown=0, NotChecked=0, Total=11772 [2022-01-17 23:53:47,017 INFO L933 BasicCegarLoop]: 681 mSDtfsCounter, 1649 mSDsluCounter, 5316 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1649 SdHoareTripleChecker+Valid, 5995 SdHoareTripleChecker+Invalid, 2094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:53:47,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1649 Valid, 5995 Invalid, 2094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-17 23:53:47,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32822 states. [2022-01-17 23:53:47,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32822 to 6832. [2022-01-17 23:53:47,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6832 states, 6830 states have (on average 2.0865300146412884) internal successors, (14251), 6831 states have internal predecessors, (14251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:47,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6832 states to 6832 states and 14251 transitions. [2022-01-17 23:53:47,409 INFO L78 Accepts]: Start accepts. Automaton has 6832 states and 14251 transitions. Word has length 78 [2022-01-17 23:53:47,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:53:47,409 INFO L470 AbstractCegarLoop]: Abstraction has 6832 states and 14251 transitions. [2022-01-17 23:53:47,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:47,409 INFO L276 IsEmpty]: Start isEmpty. Operand 6832 states and 14251 transitions. [2022-01-17 23:53:47,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:53:47,414 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:53:47,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:53:47,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-17 23:53:47,414 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:53:47,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:53:47,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1798500039, now seen corresponding path program 5 times [2022-01-17 23:53:47,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:53:47,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76189866] [2022-01-17 23:53:47,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:53:47,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:53:47,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:53:47,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:53:47,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:53:47,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76189866] [2022-01-17 23:53:47,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76189866] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:53:47,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:53:47,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-17 23:53:47,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131074568] [2022-01-17 23:53:47,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:53:47,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-17 23:53:47,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:53:47,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-17 23:53:47,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:53:47,550 INFO L87 Difference]: Start difference. First operand 6832 states and 14251 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:47,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:53:47,788 INFO L93 Difference]: Finished difference Result 13224 states and 27405 transitions. [2022-01-17 23:53:47,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-17 23:53:47,788 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:53:47,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:53:47,810 INFO L225 Difference]: With dead ends: 13224 [2022-01-17 23:53:47,810 INFO L226 Difference]: Without dead ends: 13224 [2022-01-17 23:53:47,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:53:47,811 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 587 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:53:47,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [587 Valid, 1230 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:53:47,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13224 states. [2022-01-17 23:53:47,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13224 to 6881. [2022-01-17 23:53:47,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6881 states, 6878 states have (on average 2.0754579819715033) internal successors, (14275), 6880 states have internal predecessors, (14275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:47,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6881 states to 6881 states and 14275 transitions. [2022-01-17 23:53:47,976 INFO L78 Accepts]: Start accepts. Automaton has 6881 states and 14275 transitions. Word has length 78 [2022-01-17 23:53:47,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:53:47,976 INFO L470 AbstractCegarLoop]: Abstraction has 6881 states and 14275 transitions. [2022-01-17 23:53:47,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:47,977 INFO L276 IsEmpty]: Start isEmpty. Operand 6881 states and 14275 transitions. [2022-01-17 23:53:47,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:53:47,981 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:53:47,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:53:47,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-17 23:53:47,982 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:53:47,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:53:47,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1210081927, now seen corresponding path program 6 times [2022-01-17 23:53:47,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:53:47,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110628467] [2022-01-17 23:53:47,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:53:47,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:53:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:53:48,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:53:48,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:53:48,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110628467] [2022-01-17 23:53:48,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110628467] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:53:48,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:53:48,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-17 23:53:48,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402417398] [2022-01-17 23:53:48,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:53:48,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-17 23:53:48,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:53:48,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-17 23:53:48,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:53:48,131 INFO L87 Difference]: Start difference. First operand 6881 states and 14275 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:48,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:53:48,327 INFO L93 Difference]: Finished difference Result 11923 states and 24660 transitions. [2022-01-17 23:53:48,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-17 23:53:48,327 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:53:48,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:53:48,343 INFO L225 Difference]: With dead ends: 11923 [2022-01-17 23:53:48,343 INFO L226 Difference]: Without dead ends: 11923 [2022-01-17 23:53:48,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:53:48,344 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 386 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:53:48,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 1048 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:53:48,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11923 states. [2022-01-17 23:53:48,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11923 to 6881. [2022-01-17 23:53:48,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6881 states, 6878 states have (on average 2.0754579819715033) internal successors, (14275), 6880 states have internal predecessors, (14275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:48,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6881 states to 6881 states and 14275 transitions. [2022-01-17 23:53:48,503 INFO L78 Accepts]: Start accepts. Automaton has 6881 states and 14275 transitions. Word has length 78 [2022-01-17 23:53:48,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:53:48,503 INFO L470 AbstractCegarLoop]: Abstraction has 6881 states and 14275 transitions. [2022-01-17 23:53:48,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:48,504 INFO L276 IsEmpty]: Start isEmpty. Operand 6881 states and 14275 transitions. [2022-01-17 23:53:48,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:53:48,507 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:53:48,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:53:48,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-17 23:53:48,508 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:53:48,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:53:48,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1470511061, now seen corresponding path program 3 times [2022-01-17 23:53:48,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:53:48,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972250640] [2022-01-17 23:53:48,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:53:48,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:53:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:53:48,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:53:48,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:53:48,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972250640] [2022-01-17 23:53:48,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972250640] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:53:48,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:53:48,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-17 23:53:48,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637655679] [2022-01-17 23:53:48,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:53:48,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-17 23:53:48,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:53:48,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-17 23:53:48,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-01-17 23:53:48,712 INFO L87 Difference]: Start difference. First operand 6881 states and 14275 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:51,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:53:51,667 INFO L93 Difference]: Finished difference Result 46267 states and 96712 transitions. [2022-01-17 23:53:51,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-01-17 23:53:51,668 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:53:51,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:53:51,748 INFO L225 Difference]: With dead ends: 46267 [2022-01-17 23:53:51,748 INFO L226 Difference]: Without dead ends: 46267 [2022-01-17 23:53:51,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3963 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2137, Invalid=9205, Unknown=0, NotChecked=0, Total=11342 [2022-01-17 23:53:51,751 INFO L933 BasicCegarLoop]: 732 mSDtfsCounter, 1440 mSDsluCounter, 6551 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 7282 SdHoareTripleChecker+Invalid, 2521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:53:51,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1440 Valid, 7282 Invalid, 2521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-17 23:53:51,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46267 states. [2022-01-17 23:53:52,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46267 to 7282. [2022-01-17 23:53:52,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7282 states, 7279 states have (on average 2.0839401016623165) internal successors, (15169), 7281 states have internal predecessors, (15169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:52,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7282 states to 7282 states and 15169 transitions. [2022-01-17 23:53:52,256 INFO L78 Accepts]: Start accepts. Automaton has 7282 states and 15169 transitions. Word has length 78 [2022-01-17 23:53:52,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:53:52,256 INFO L470 AbstractCegarLoop]: Abstraction has 7282 states and 15169 transitions. [2022-01-17 23:53:52,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:52,256 INFO L276 IsEmpty]: Start isEmpty. Operand 7282 states and 15169 transitions. [2022-01-17 23:53:52,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:53:52,260 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:53:52,260 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:53:52,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-17 23:53:52,260 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:53:52,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:53:52,261 INFO L85 PathProgramCache]: Analyzing trace with hash -794962659, now seen corresponding path program 7 times [2022-01-17 23:53:52,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:53:52,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56556884] [2022-01-17 23:53:52,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:53:52,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:53:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:53:52,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:53:52,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:53:52,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56556884] [2022-01-17 23:53:52,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56556884] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:53:52,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:53:52,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-17 23:53:52,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210787736] [2022-01-17 23:53:52,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:53:52,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-17 23:53:52,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:53:52,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-17 23:53:52,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:53:52,360 INFO L87 Difference]: Start difference. First operand 7282 states and 15169 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:52,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:53:52,650 INFO L93 Difference]: Finished difference Result 22479 states and 46559 transitions. [2022-01-17 23:53:52,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-17 23:53:52,651 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:53:52,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:53:52,693 INFO L225 Difference]: With dead ends: 22479 [2022-01-17 23:53:52,694 INFO L226 Difference]: Without dead ends: 22479 [2022-01-17 23:53:52,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:53:52,694 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 653 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:53:52,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [653 Valid, 1096 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:53:52,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22479 states. [2022-01-17 23:53:52,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22479 to 7257. [2022-01-17 23:53:52,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7257 states, 7254 states have (on average 2.0818858560794045) internal successors, (15102), 7256 states have internal predecessors, (15102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:52,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7257 states to 7257 states and 15102 transitions. [2022-01-17 23:53:52,884 INFO L78 Accepts]: Start accepts. Automaton has 7257 states and 15102 transitions. Word has length 78 [2022-01-17 23:53:52,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:53:52,885 INFO L470 AbstractCegarLoop]: Abstraction has 7257 states and 15102 transitions. [2022-01-17 23:53:52,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:52,885 INFO L276 IsEmpty]: Start isEmpty. Operand 7257 states and 15102 transitions. [2022-01-17 23:53:52,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:53:52,889 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:53:52,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:53:52,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-17 23:53:52,889 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:53:52,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:53:52,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1383380771, now seen corresponding path program 8 times [2022-01-17 23:53:52,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:53:52,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759476578] [2022-01-17 23:53:52,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:53:52,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:53:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:53:53,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:53:53,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:53:53,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759476578] [2022-01-17 23:53:53,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759476578] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:53:53,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:53:53,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-17 23:53:53,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386607490] [2022-01-17 23:53:53,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:53:53,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-17 23:53:53,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:53:53,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-17 23:53:53,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:53:53,042 INFO L87 Difference]: Start difference. First operand 7257 states and 15102 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:53,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:53:53,272 INFO L93 Difference]: Finished difference Result 17765 states and 36818 transitions. [2022-01-17 23:53:53,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-17 23:53:53,272 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:53:53,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:53:53,305 INFO L225 Difference]: With dead ends: 17765 [2022-01-17 23:53:53,305 INFO L226 Difference]: Without dead ends: 17765 [2022-01-17 23:53:53,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:53:53,306 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 446 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:53:53,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 1151 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:53:53,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17765 states. [2022-01-17 23:53:53,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17765 to 7164. [2022-01-17 23:53:53,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7164 states, 7161 states have (on average 2.079318530931434) internal successors, (14890), 7163 states have internal predecessors, (14890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:53,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7164 states to 7164 states and 14890 transitions. [2022-01-17 23:53:53,450 INFO L78 Accepts]: Start accepts. Automaton has 7164 states and 14890 transitions. Word has length 78 [2022-01-17 23:53:53,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:53:53,451 INFO L470 AbstractCegarLoop]: Abstraction has 7164 states and 14890 transitions. [2022-01-17 23:53:53,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:53,451 INFO L276 IsEmpty]: Start isEmpty. Operand 7164 states and 14890 transitions. [2022-01-17 23:53:53,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:53:53,454 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:53:53,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:53:53,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-17 23:53:53,455 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:53:53,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:53:53,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1994881031, now seen corresponding path program 4 times [2022-01-17 23:53:53,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:53:53,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000359168] [2022-01-17 23:53:53,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:53:53,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:53:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:53:53,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:53:53,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:53:53,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000359168] [2022-01-17 23:53:53,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000359168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:53:53,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:53:53,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-17 23:53:53,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59007749] [2022-01-17 23:53:53,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:53:53,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-17 23:53:53,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:53:53,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-17 23:53:53,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-01-17 23:53:53,674 INFO L87 Difference]: Start difference. First operand 7164 states and 14890 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:56,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:53:56,880 INFO L93 Difference]: Finished difference Result 35183 states and 73664 transitions. [2022-01-17 23:53:56,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-17 23:53:56,881 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:53:56,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:53:56,985 INFO L225 Difference]: With dead ends: 35183 [2022-01-17 23:53:56,985 INFO L226 Difference]: Without dead ends: 35183 [2022-01-17 23:53:56,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2865 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1874, Invalid=7246, Unknown=0, NotChecked=0, Total=9120 [2022-01-17 23:53:56,986 INFO L933 BasicCegarLoop]: 737 mSDtfsCounter, 1287 mSDsluCounter, 5017 mSDsCounter, 0 mSdLazyCounter, 1966 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 5753 SdHoareTripleChecker+Invalid, 2018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-17 23:53:56,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1287 Valid, 5753 Invalid, 2018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1966 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-17 23:53:57,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35183 states. [2022-01-17 23:53:57,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35183 to 8219. [2022-01-17 23:53:57,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8219 states, 8216 states have (on average 2.0978578383641673) internal successors, (17236), 8218 states have internal predecessors, (17236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:57,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8219 states to 8219 states and 17236 transitions. [2022-01-17 23:53:57,231 INFO L78 Accepts]: Start accepts. Automaton has 8219 states and 17236 transitions. Word has length 78 [2022-01-17 23:53:57,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:53:57,232 INFO L470 AbstractCegarLoop]: Abstraction has 8219 states and 17236 transitions. [2022-01-17 23:53:57,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:57,232 INFO L276 IsEmpty]: Start isEmpty. Operand 8219 states and 17236 transitions. [2022-01-17 23:53:57,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:53:57,236 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:53:57,236 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:53:57,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-17 23:53:57,236 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:53:57,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:53:57,237 INFO L85 PathProgramCache]: Analyzing trace with hash 34612545, now seen corresponding path program 9 times [2022-01-17 23:53:57,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:53:57,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574838699] [2022-01-17 23:53:57,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:53:57,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:53:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:53:57,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:53:57,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:53:57,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574838699] [2022-01-17 23:53:57,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574838699] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:53:57,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:53:57,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-17 23:53:57,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742459550] [2022-01-17 23:53:57,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:53:57,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-17 23:53:57,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:53:57,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-17 23:53:57,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:53:57,336 INFO L87 Difference]: Start difference. First operand 8219 states and 17236 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:57,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:53:57,560 INFO L93 Difference]: Finished difference Result 17751 states and 36797 transitions. [2022-01-17 23:53:57,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-17 23:53:57,560 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:53:57,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:53:57,592 INFO L225 Difference]: With dead ends: 17751 [2022-01-17 23:53:57,592 INFO L226 Difference]: Without dead ends: 17751 [2022-01-17 23:53:57,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:53:57,593 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 524 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:53:57,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [524 Valid, 1261 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:53:57,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17751 states. [2022-01-17 23:53:57,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17751 to 8195. [2022-01-17 23:53:57,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8195 states, 8192 states have (on average 2.097900390625) internal successors, (17186), 8194 states have internal predecessors, (17186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:57,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8195 states to 8195 states and 17186 transitions. [2022-01-17 23:53:57,806 INFO L78 Accepts]: Start accepts. Automaton has 8195 states and 17186 transitions. Word has length 78 [2022-01-17 23:53:57,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:53:57,807 INFO L470 AbstractCegarLoop]: Abstraction has 8195 states and 17186 transitions. [2022-01-17 23:53:57,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:57,807 INFO L276 IsEmpty]: Start isEmpty. Operand 8195 states and 17186 transitions. [2022-01-17 23:53:57,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:53:57,811 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:53:57,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:53:57,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-17 23:53:57,812 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:53:57,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:53:57,812 INFO L85 PathProgramCache]: Analyzing trace with hash 642429283, now seen corresponding path program 10 times [2022-01-17 23:53:57,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:53:57,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163371098] [2022-01-17 23:53:57,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:53:57,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:53:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:53:57,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:53:57,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:53:57,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163371098] [2022-01-17 23:53:57,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163371098] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:53:57,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:53:57,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-17 23:53:57,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925715021] [2022-01-17 23:53:57,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:53:57,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-17 23:53:57,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:53:57,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-17 23:53:57,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:53:57,910 INFO L87 Difference]: Start difference. First operand 8195 states and 17186 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:58,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:53:58,132 INFO L93 Difference]: Finished difference Result 14050 states and 29137 transitions. [2022-01-17 23:53:58,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-17 23:53:58,132 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:53:58,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:53:58,154 INFO L225 Difference]: With dead ends: 14050 [2022-01-17 23:53:58,154 INFO L226 Difference]: Without dead ends: 14050 [2022-01-17 23:53:58,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:53:58,155 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 549 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:53:58,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [549 Valid, 1052 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:53:58,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14050 states. [2022-01-17 23:53:58,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14050 to 9098. [2022-01-17 23:53:58,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9098 states, 9095 states have (on average 2.102363936228697) internal successors, (19121), 9097 states have internal predecessors, (19121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:58,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9098 states to 9098 states and 19121 transitions. [2022-01-17 23:53:58,314 INFO L78 Accepts]: Start accepts. Automaton has 9098 states and 19121 transitions. Word has length 78 [2022-01-17 23:53:58,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:53:58,314 INFO L470 AbstractCegarLoop]: Abstraction has 9098 states and 19121 transitions. [2022-01-17 23:53:58,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:53:58,314 INFO L276 IsEmpty]: Start isEmpty. Operand 9098 states and 19121 transitions. [2022-01-17 23:53:58,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:53:58,317 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:53:58,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:53:58,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-17 23:53:58,317 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:53:58,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:53:58,318 INFO L85 PathProgramCache]: Analyzing trace with hash -655223041, now seen corresponding path program 5 times [2022-01-17 23:53:58,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:53:58,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426316485] [2022-01-17 23:53:58,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:53:58,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:53:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:53:58,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:53:58,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:53:58,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426316485] [2022-01-17 23:53:58,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426316485] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:53:58,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:53:58,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-17 23:53:58,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736188517] [2022-01-17 23:53:58,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:53:58,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-17 23:53:58,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:53:58,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-17 23:53:58,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-01-17 23:53:58,505 INFO L87 Difference]: Start difference. First operand 9098 states and 19121 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:01,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:01,241 INFO L93 Difference]: Finished difference Result 42338 states and 88537 transitions. [2022-01-17 23:54:01,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-01-17 23:54:01,241 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:54:01,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:01,315 INFO L225 Difference]: With dead ends: 42338 [2022-01-17 23:54:01,316 INFO L226 Difference]: Without dead ends: 42338 [2022-01-17 23:54:01,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3907 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2137, Invalid=9205, Unknown=0, NotChecked=0, Total=11342 [2022-01-17 23:54:01,317 INFO L933 BasicCegarLoop]: 734 mSDtfsCounter, 1392 mSDsluCounter, 5329 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 6063 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:01,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1392 Valid, 6063 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1879 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-17 23:54:01,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42338 states. [2022-01-17 23:54:01,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42338 to 9356. [2022-01-17 23:54:01,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9356 states, 9353 states have (on average 2.106382978723404) internal successors, (19701), 9355 states have internal predecessors, (19701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:01,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9356 states to 9356 states and 19701 transitions. [2022-01-17 23:54:01,688 INFO L78 Accepts]: Start accepts. Automaton has 9356 states and 19701 transitions. Word has length 78 [2022-01-17 23:54:01,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:01,688 INFO L470 AbstractCegarLoop]: Abstraction has 9356 states and 19701 transitions. [2022-01-17 23:54:01,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:01,688 INFO L276 IsEmpty]: Start isEmpty. Operand 9356 states and 19701 transitions. [2022-01-17 23:54:01,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:54:01,691 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:01,691 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:01,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-17 23:54:01,692 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:01,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:01,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1374270535, now seen corresponding path program 11 times [2022-01-17 23:54:01,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:01,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450572550] [2022-01-17 23:54:01,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:01,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:01,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:01,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:01,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:01,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450572550] [2022-01-17 23:54:01,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450572550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:01,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:01,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-17 23:54:01,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363556271] [2022-01-17 23:54:01,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:01,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-17 23:54:01,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:01,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-17 23:54:01,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:54:01,817 INFO L87 Difference]: Start difference. First operand 9356 states and 19701 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:02,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:02,113 INFO L93 Difference]: Finished difference Result 19573 states and 40679 transitions. [2022-01-17 23:54:02,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-17 23:54:02,114 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:54:02,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:02,156 INFO L225 Difference]: With dead ends: 19573 [2022-01-17 23:54:02,156 INFO L226 Difference]: Without dead ends: 19573 [2022-01-17 23:54:02,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:54:02,157 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 506 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:02,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [506 Valid, 1263 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:54:02,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19573 states. [2022-01-17 23:54:02,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19573 to 9370. [2022-01-17 23:54:02,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9370 states, 9367 states have (on average 2.103448275862069) internal successors, (19703), 9369 states have internal predecessors, (19703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:02,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9370 states to 9370 states and 19703 transitions. [2022-01-17 23:54:02,402 INFO L78 Accepts]: Start accepts. Automaton has 9370 states and 19703 transitions. Word has length 78 [2022-01-17 23:54:02,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:02,402 INFO L470 AbstractCegarLoop]: Abstraction has 9370 states and 19703 transitions. [2022-01-17 23:54:02,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:02,403 INFO L276 IsEmpty]: Start isEmpty. Operand 9370 states and 19703 transitions. [2022-01-17 23:54:02,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:54:02,407 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:02,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:02,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-17 23:54:02,408 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:02,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:02,408 INFO L85 PathProgramCache]: Analyzing trace with hash 785852423, now seen corresponding path program 12 times [2022-01-17 23:54:02,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:02,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48529282] [2022-01-17 23:54:02,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:02,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:02,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:02,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:02,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48529282] [2022-01-17 23:54:02,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48529282] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:02,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:02,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-17 23:54:02,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893404841] [2022-01-17 23:54:02,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:02,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-17 23:54:02,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:02,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-17 23:54:02,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:54:02,515 INFO L87 Difference]: Start difference. First operand 9370 states and 19703 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:02,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:02,737 INFO L93 Difference]: Finished difference Result 13098 states and 27206 transitions. [2022-01-17 23:54:02,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-17 23:54:02,738 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:54:02,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:02,757 INFO L225 Difference]: With dead ends: 13098 [2022-01-17 23:54:02,757 INFO L226 Difference]: Without dead ends: 13098 [2022-01-17 23:54:02,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:54:02,759 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 380 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:02,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 1270 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:54:02,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13098 states. [2022-01-17 23:54:02,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13098 to 9142. [2022-01-17 23:54:02,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9142 states, 9139 states have (on average 2.0995732574679944) internal successors, (19188), 9141 states have internal predecessors, (19188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:02,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9142 states to 9142 states and 19188 transitions. [2022-01-17 23:54:02,906 INFO L78 Accepts]: Start accepts. Automaton has 9142 states and 19188 transitions. Word has length 78 [2022-01-17 23:54:02,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:02,906 INFO L470 AbstractCegarLoop]: Abstraction has 9142 states and 19188 transitions. [2022-01-17 23:54:02,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:02,907 INFO L276 IsEmpty]: Start isEmpty. Operand 9142 states and 19188 transitions. [2022-01-17 23:54:02,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:54:02,910 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:02,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:02,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-17 23:54:02,911 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:02,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:02,911 INFO L85 PathProgramCache]: Analyzing trace with hash 174352163, now seen corresponding path program 6 times [2022-01-17 23:54:02,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:02,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464393154] [2022-01-17 23:54:02,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:02,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:03,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:03,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:03,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464393154] [2022-01-17 23:54:03,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464393154] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:03,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:03,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-17 23:54:03,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566002647] [2022-01-17 23:54:03,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:03,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-17 23:54:03,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:03,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-17 23:54:03,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-01-17 23:54:03,132 INFO L87 Difference]: Start difference. First operand 9142 states and 19188 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:06,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:06,408 INFO L93 Difference]: Finished difference Result 45515 states and 95261 transitions. [2022-01-17 23:54:06,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-01-17 23:54:06,408 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:54:06,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:06,495 INFO L225 Difference]: With dead ends: 45515 [2022-01-17 23:54:06,495 INFO L226 Difference]: Without dead ends: 45515 [2022-01-17 23:54:06,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2801 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1874, Invalid=7246, Unknown=0, NotChecked=0, Total=9120 [2022-01-17 23:54:06,497 INFO L933 BasicCegarLoop]: 778 mSDtfsCounter, 1180 mSDsluCounter, 6158 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 6936 SdHoareTripleChecker+Invalid, 2457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:06,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1180 Valid, 6936 Invalid, 2457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2412 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-17 23:54:06,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45515 states. [2022-01-17 23:54:06,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45515 to 9322. [2022-01-17 23:54:06,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9322 states, 9319 states have (on average 2.0995815001609617) internal successors, (19566), 9321 states have internal predecessors, (19566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:06,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9322 states to 9322 states and 19566 transitions. [2022-01-17 23:54:06,858 INFO L78 Accepts]: Start accepts. Automaton has 9322 states and 19566 transitions. Word has length 78 [2022-01-17 23:54:06,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:06,858 INFO L470 AbstractCegarLoop]: Abstraction has 9322 states and 19566 transitions. [2022-01-17 23:54:06,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:06,858 INFO L276 IsEmpty]: Start isEmpty. Operand 9322 states and 19566 transitions. [2022-01-17 23:54:06,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:54:06,862 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:06,862 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:06,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-17 23:54:06,862 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:06,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:06,862 INFO L85 PathProgramCache]: Analyzing trace with hash -2091121557, now seen corresponding path program 13 times [2022-01-17 23:54:06,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:06,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286616838] [2022-01-17 23:54:06,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:06,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:06,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:06,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:06,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286616838] [2022-01-17 23:54:06,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286616838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:06,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:06,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-17 23:54:06,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547277284] [2022-01-17 23:54:06,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:06,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-17 23:54:06,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:06,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-17 23:54:06,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:54:06,966 INFO L87 Difference]: Start difference. First operand 9322 states and 19566 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:07,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:07,224 INFO L93 Difference]: Finished difference Result 23356 states and 48220 transitions. [2022-01-17 23:54:07,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-17 23:54:07,224 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:54:07,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:07,271 INFO L225 Difference]: With dead ends: 23356 [2022-01-17 23:54:07,271 INFO L226 Difference]: Without dead ends: 23356 [2022-01-17 23:54:07,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:54:07,272 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 559 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:07,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [559 Valid, 1292 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:54:07,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23356 states. [2022-01-17 23:54:07,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23356 to 9258. [2022-01-17 23:54:07,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9258 states, 9255 states have (on average 2.099837925445705) internal successors, (19434), 9257 states have internal predecessors, (19434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:07,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9258 states to 9258 states and 19434 transitions. [2022-01-17 23:54:07,522 INFO L78 Accepts]: Start accepts. Automaton has 9258 states and 19434 transitions. Word has length 78 [2022-01-17 23:54:07,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:07,522 INFO L470 AbstractCegarLoop]: Abstraction has 9258 states and 19434 transitions. [2022-01-17 23:54:07,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:07,522 INFO L276 IsEmpty]: Start isEmpty. Operand 9258 states and 19434 transitions. [2022-01-17 23:54:07,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:54:07,526 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:07,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:07,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-17 23:54:07,527 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:07,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:07,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1483304819, now seen corresponding path program 14 times [2022-01-17 23:54:07,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:07,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053472089] [2022-01-17 23:54:07,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:07,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:07,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:07,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:07,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:07,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053472089] [2022-01-17 23:54:07,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053472089] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:07,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:07,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-17 23:54:07,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79091203] [2022-01-17 23:54:07,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:07,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-17 23:54:07,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:07,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-17 23:54:07,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:54:07,638 INFO L87 Difference]: Start difference. First operand 9258 states and 19434 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:07,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:07,958 INFO L93 Difference]: Finished difference Result 18644 states and 38505 transitions. [2022-01-17 23:54:07,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-17 23:54:07,958 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:54:07,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:07,992 INFO L225 Difference]: With dead ends: 18644 [2022-01-17 23:54:07,992 INFO L226 Difference]: Without dead ends: 18644 [2022-01-17 23:54:07,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:54:07,993 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 480 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:07,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [480 Valid, 1270 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:54:08,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18644 states. [2022-01-17 23:54:08,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18644 to 8909. [2022-01-17 23:54:08,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8909 states, 8906 states have (on average 2.103188861441725) internal successors, (18731), 8908 states have internal predecessors, (18731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:08,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8909 states to 8909 states and 18731 transitions. [2022-01-17 23:54:08,162 INFO L78 Accepts]: Start accepts. Automaton has 8909 states and 18731 transitions. Word has length 78 [2022-01-17 23:54:08,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:08,163 INFO L470 AbstractCegarLoop]: Abstraction has 8909 states and 18731 transitions. [2022-01-17 23:54:08,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:08,163 INFO L276 IsEmpty]: Start isEmpty. Operand 8909 states and 18731 transitions. [2022-01-17 23:54:08,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:54:08,165 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:08,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:08,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-17 23:54:08,166 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:08,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:08,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1269523329, now seen corresponding path program 7 times [2022-01-17 23:54:08,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:08,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869679010] [2022-01-17 23:54:08,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:08,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:08,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:08,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:08,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869679010] [2022-01-17 23:54:08,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869679010] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:08,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:08,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-17 23:54:08,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569840436] [2022-01-17 23:54:08,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:08,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-17 23:54:08,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:08,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-17 23:54:08,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-01-17 23:54:08,393 INFO L87 Difference]: Start difference. First operand 8909 states and 18731 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:11,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:11,519 INFO L93 Difference]: Finished difference Result 33119 states and 69705 transitions. [2022-01-17 23:54:11,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-17 23:54:11,520 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:54:11,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:11,588 INFO L225 Difference]: With dead ends: 33119 [2022-01-17 23:54:11,588 INFO L226 Difference]: Without dead ends: 33119 [2022-01-17 23:54:11,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2895 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1905, Invalid=7407, Unknown=0, NotChecked=0, Total=9312 [2022-01-17 23:54:11,590 INFO L933 BasicCegarLoop]: 751 mSDtfsCounter, 1159 mSDsluCounter, 5643 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 6394 SdHoareTripleChecker+Invalid, 2347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:11,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1159 Valid, 6394 Invalid, 2347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2305 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-17 23:54:11,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33119 states. [2022-01-17 23:54:11,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33119 to 7895. [2022-01-17 23:54:11,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7895 states, 7892 states have (on average 2.087430309173847) internal successors, (16474), 7894 states have internal predecessors, (16474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:11,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7895 states to 7895 states and 16474 transitions. [2022-01-17 23:54:11,914 INFO L78 Accepts]: Start accepts. Automaton has 7895 states and 16474 transitions. Word has length 78 [2022-01-17 23:54:11,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:11,914 INFO L470 AbstractCegarLoop]: Abstraction has 7895 states and 16474 transitions. [2022-01-17 23:54:11,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:11,914 INFO L276 IsEmpty]: Start isEmpty. Operand 7895 states and 16474 transitions. [2022-01-17 23:54:11,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:54:11,918 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:11,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:11,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-17 23:54:11,918 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:11,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:11,919 INFO L85 PathProgramCache]: Analyzing trace with hash 759970247, now seen corresponding path program 15 times [2022-01-17 23:54:11,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:11,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124872845] [2022-01-17 23:54:11,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:11,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:12,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:12,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:12,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124872845] [2022-01-17 23:54:12,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124872845] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:12,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:12,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-17 23:54:12,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160599138] [2022-01-17 23:54:12,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:12,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-17 23:54:12,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:12,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-17 23:54:12,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:54:12,008 INFO L87 Difference]: Start difference. First operand 7895 states and 16474 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:12,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:12,246 INFO L93 Difference]: Finished difference Result 15260 states and 31594 transitions. [2022-01-17 23:54:12,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-17 23:54:12,246 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:54:12,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:12,278 INFO L225 Difference]: With dead ends: 15260 [2022-01-17 23:54:12,278 INFO L226 Difference]: Without dead ends: 15260 [2022-01-17 23:54:12,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:54:12,279 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 480 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:12,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [480 Valid, 1137 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:54:12,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15260 states. [2022-01-17 23:54:12,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15260 to 7887. [2022-01-17 23:54:12,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7887 states, 7884 states have (on average 2.084348046676814) internal successors, (16433), 7886 states have internal predecessors, (16433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:12,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7887 states to 7887 states and 16433 transitions. [2022-01-17 23:54:12,466 INFO L78 Accepts]: Start accepts. Automaton has 7887 states and 16433 transitions. Word has length 78 [2022-01-17 23:54:12,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:12,466 INFO L470 AbstractCegarLoop]: Abstraction has 7887 states and 16433 transitions. [2022-01-17 23:54:12,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:12,467 INFO L276 IsEmpty]: Start isEmpty. Operand 7887 states and 16433 transitions. [2022-01-17 23:54:12,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:54:12,469 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:12,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:12,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-17 23:54:12,470 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:12,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:12,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1367786985, now seen corresponding path program 16 times [2022-01-17 23:54:12,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:12,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720026454] [2022-01-17 23:54:12,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:12,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:12,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:12,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:12,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720026454] [2022-01-17 23:54:12,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720026454] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:12,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:12,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-17 23:54:12,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451322253] [2022-01-17 23:54:12,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:12,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-17 23:54:12,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:12,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-17 23:54:12,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:54:12,570 INFO L87 Difference]: Start difference. First operand 7887 states and 16433 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:12,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:12,798 INFO L93 Difference]: Finished difference Result 15277 states and 31545 transitions. [2022-01-17 23:54:12,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-17 23:54:12,798 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:54:12,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:12,823 INFO L225 Difference]: With dead ends: 15277 [2022-01-17 23:54:12,823 INFO L226 Difference]: Without dead ends: 15277 [2022-01-17 23:54:12,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:54:12,824 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 419 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:12,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [419 Valid, 977 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:54:12,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15277 states. [2022-01-17 23:54:12,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15277 to 7769. [2022-01-17 23:54:12,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7769 states, 7766 states have (on average 2.087818696883853) internal successors, (16214), 7768 states have internal predecessors, (16214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:12,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7769 states to 7769 states and 16214 transitions. [2022-01-17 23:54:12,966 INFO L78 Accepts]: Start accepts. Automaton has 7769 states and 16214 transitions. Word has length 78 [2022-01-17 23:54:12,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:12,966 INFO L470 AbstractCegarLoop]: Abstraction has 7769 states and 16214 transitions. [2022-01-17 23:54:12,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:12,966 INFO L276 IsEmpty]: Start isEmpty. Operand 7769 states and 16214 transitions. [2022-01-17 23:54:12,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:54:12,970 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:12,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:12,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-17 23:54:12,970 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:12,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:12,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1877525063, now seen corresponding path program 17 times [2022-01-17 23:54:12,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:12,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048656869] [2022-01-17 23:54:12,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:12,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:13,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:13,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:13,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048656869] [2022-01-17 23:54:13,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048656869] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:13,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:13,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-17 23:54:13,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276612589] [2022-01-17 23:54:13,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:13,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-17 23:54:13,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:13,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-17 23:54:13,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:54:13,069 INFO L87 Difference]: Start difference. First operand 7769 states and 16214 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:13,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:13,249 INFO L93 Difference]: Finished difference Result 4518 states and 9036 transitions. [2022-01-17 23:54:13,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-17 23:54:13,249 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-17 23:54:13,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:13,255 INFO L225 Difference]: With dead ends: 4518 [2022-01-17 23:54:13,256 INFO L226 Difference]: Without dead ends: 4518 [2022-01-17 23:54:13,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:54:13,256 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 369 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:13,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 884 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:54:13,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4518 states. [2022-01-17 23:54:13,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4518 to 3350. [2022-01-17 23:54:13,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3350 states, 3348 states have (on average 2.0074671445639187) internal successors, (6721), 3349 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:13,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3350 states to 3350 states and 6721 transitions. [2022-01-17 23:54:13,310 INFO L78 Accepts]: Start accepts. Automaton has 3350 states and 6721 transitions. Word has length 78 [2022-01-17 23:54:13,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:13,310 INFO L470 AbstractCegarLoop]: Abstraction has 3350 states and 6721 transitions. [2022-01-17 23:54:13,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:13,311 INFO L276 IsEmpty]: Start isEmpty. Operand 3350 states and 6721 transitions. [2022-01-17 23:54:13,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-17 23:54:13,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:13,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:13,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-17 23:54:13,314 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:13,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:13,314 INFO L85 PathProgramCache]: Analyzing trace with hash 185879758, now seen corresponding path program 1 times [2022-01-17 23:54:13,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:13,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976009971] [2022-01-17 23:54:13,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:13,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:13,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:13,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:13,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976009971] [2022-01-17 23:54:13,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976009971] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:13,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:13,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-17 23:54:13,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177413348] [2022-01-17 23:54:13,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:13,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-17 23:54:13,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:13,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-17 23:54:13,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2022-01-17 23:54:13,551 INFO L87 Difference]: Start difference. First operand 3350 states and 6721 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:14,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:14,973 INFO L93 Difference]: Finished difference Result 5553 states and 11161 transitions. [2022-01-17 23:54:14,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-17 23:54:14,973 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-17 23:54:14,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:14,981 INFO L225 Difference]: With dead ends: 5553 [2022-01-17 23:54:14,982 INFO L226 Difference]: Without dead ends: 5553 [2022-01-17 23:54:14,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 734 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=581, Invalid=2499, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:54:14,983 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 1602 mSDsluCounter, 2986 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 3268 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:14,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1602 Valid, 3268 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:54:14,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5553 states. [2022-01-17 23:54:15,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5553 to 3355. [2022-01-17 23:54:15,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3353 states have (on average 2.0071577691619447) internal successors, (6730), 3354 states have internal predecessors, (6730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:15,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 6730 transitions. [2022-01-17 23:54:15,032 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 6730 transitions. Word has length 81 [2022-01-17 23:54:15,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:15,032 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 6730 transitions. [2022-01-17 23:54:15,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:15,032 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 6730 transitions. [2022-01-17 23:54:15,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-17 23:54:15,034 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:15,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:15,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-17 23:54:15,035 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:15,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:15,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1324480462, now seen corresponding path program 2 times [2022-01-17 23:54:15,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:15,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963470087] [2022-01-17 23:54:15,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:15,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:15,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:15,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:15,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963470087] [2022-01-17 23:54:15,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963470087] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:15,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:15,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-17 23:54:15,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630238948] [2022-01-17 23:54:15,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:15,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-17 23:54:15,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:15,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-17 23:54:15,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2022-01-17 23:54:15,278 INFO L87 Difference]: Start difference. First operand 3355 states and 6730 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:16,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:16,769 INFO L93 Difference]: Finished difference Result 6169 states and 12402 transitions. [2022-01-17 23:54:16,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-17 23:54:16,769 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-17 23:54:16,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:16,777 INFO L225 Difference]: With dead ends: 6169 [2022-01-17 23:54:16,777 INFO L226 Difference]: Without dead ends: 6169 [2022-01-17 23:54:16,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 730 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=563, Invalid=2517, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:54:16,778 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 1628 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1628 SdHoareTripleChecker+Valid, 3633 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:16,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1628 Valid, 3633 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:54:16,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6169 states. [2022-01-17 23:54:16,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6169 to 3406. [2022-01-17 23:54:16,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3406 states, 3404 states have (on average 2.0079318448883665) internal successors, (6835), 3405 states have internal predecessors, (6835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:16,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 6835 transitions. [2022-01-17 23:54:16,825 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 6835 transitions. Word has length 81 [2022-01-17 23:54:16,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:16,826 INFO L470 AbstractCegarLoop]: Abstraction has 3406 states and 6835 transitions. [2022-01-17 23:54:16,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:16,826 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 6835 transitions. [2022-01-17 23:54:16,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-17 23:54:16,828 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:16,828 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:16,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-17 23:54:16,828 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:16,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:16,828 INFO L85 PathProgramCache]: Analyzing trace with hash -178500404, now seen corresponding path program 3 times [2022-01-17 23:54:16,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:16,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403900817] [2022-01-17 23:54:16,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:16,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:17,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:17,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:17,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403900817] [2022-01-17 23:54:17,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403900817] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:17,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:17,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-17 23:54:17,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737464026] [2022-01-17 23:54:17,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:17,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-17 23:54:17,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:17,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-17 23:54:17,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2022-01-17 23:54:17,074 INFO L87 Difference]: Start difference. First operand 3406 states and 6835 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:18,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:18,616 INFO L93 Difference]: Finished difference Result 5606 states and 11266 transitions. [2022-01-17 23:54:18,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-17 23:54:18,617 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-17 23:54:18,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:18,623 INFO L225 Difference]: With dead ends: 5606 [2022-01-17 23:54:18,623 INFO L226 Difference]: Without dead ends: 5606 [2022-01-17 23:54:18,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=641, Invalid=2781, Unknown=0, NotChecked=0, Total=3422 [2022-01-17 23:54:18,624 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 1300 mSDsluCounter, 3481 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 3786 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:18,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1300 Valid, 3786 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:54:18,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5606 states. [2022-01-17 23:54:18,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5606 to 3406. [2022-01-17 23:54:18,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3406 states, 3404 states have (on average 2.0079318448883665) internal successors, (6835), 3405 states have internal predecessors, (6835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:18,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 6835 transitions. [2022-01-17 23:54:18,672 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 6835 transitions. Word has length 81 [2022-01-17 23:54:18,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:18,672 INFO L470 AbstractCegarLoop]: Abstraction has 3406 states and 6835 transitions. [2022-01-17 23:54:18,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:18,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 6835 transitions. [2022-01-17 23:54:18,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-17 23:54:18,674 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:18,674 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:18,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-17 23:54:18,675 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:18,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:18,675 INFO L85 PathProgramCache]: Analyzing trace with hash 164150042, now seen corresponding path program 4 times [2022-01-17 23:54:18,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:18,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452188645] [2022-01-17 23:54:18,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:18,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:18,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:18,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:18,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452188645] [2022-01-17 23:54:18,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452188645] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:18,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:18,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-17 23:54:18,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526236863] [2022-01-17 23:54:18,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:18,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-17 23:54:18,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:18,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-17 23:54:18,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2022-01-17 23:54:18,909 INFO L87 Difference]: Start difference. First operand 3406 states and 6835 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:20,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:20,532 INFO L93 Difference]: Finished difference Result 6287 states and 12618 transitions. [2022-01-17 23:54:20,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-17 23:54:20,533 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-17 23:54:20,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:20,539 INFO L225 Difference]: With dead ends: 6287 [2022-01-17 23:54:20,539 INFO L226 Difference]: Without dead ends: 6287 [2022-01-17 23:54:20,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=680, Invalid=2626, Unknown=0, NotChecked=0, Total=3306 [2022-01-17 23:54:20,540 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 2000 mSDsluCounter, 3435 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2000 SdHoareTripleChecker+Valid, 3735 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:20,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2000 Valid, 3735 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:54:20,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6287 states. [2022-01-17 23:54:20,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6287 to 3436. [2022-01-17 23:54:20,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3436 states, 3434 states have (on average 2.006406523005242) internal successors, (6890), 3435 states have internal predecessors, (6890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:20,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3436 states to 3436 states and 6890 transitions. [2022-01-17 23:54:20,581 INFO L78 Accepts]: Start accepts. Automaton has 3436 states and 6890 transitions. Word has length 81 [2022-01-17 23:54:20,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:20,581 INFO L470 AbstractCegarLoop]: Abstraction has 3436 states and 6890 transitions. [2022-01-17 23:54:20,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:20,581 INFO L276 IsEmpty]: Start isEmpty. Operand 3436 states and 6890 transitions. [2022-01-17 23:54:20,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-17 23:54:20,583 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:20,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:20,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-17 23:54:20,584 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:20,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:20,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1025934648, now seen corresponding path program 5 times [2022-01-17 23:54:20,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:20,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072445601] [2022-01-17 23:54:20,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:20,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:20,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:20,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:20,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072445601] [2022-01-17 23:54:20,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072445601] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:20,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:20,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-17 23:54:20,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501441765] [2022-01-17 23:54:20,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:20,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-17 23:54:20,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:20,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-17 23:54:20,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2022-01-17 23:54:20,861 INFO L87 Difference]: Start difference. First operand 3436 states and 6890 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:22,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:22,354 INFO L93 Difference]: Finished difference Result 5995 states and 11999 transitions. [2022-01-17 23:54:22,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-17 23:54:22,355 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-17 23:54:22,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:22,361 INFO L225 Difference]: With dead ends: 5995 [2022-01-17 23:54:22,362 INFO L226 Difference]: Without dead ends: 5995 [2022-01-17 23:54:22,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=623, Invalid=2569, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:54:22,363 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 1578 mSDsluCounter, 3122 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1578 SdHoareTripleChecker+Valid, 3409 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:22,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1578 Valid, 3409 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:54:22,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5995 states. [2022-01-17 23:54:22,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5995 to 3439. [2022-01-17 23:54:22,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3437 states have (on average 2.0064009310445154) internal successors, (6896), 3438 states have internal predecessors, (6896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:22,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 6896 transitions. [2022-01-17 23:54:22,404 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 6896 transitions. Word has length 81 [2022-01-17 23:54:22,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:22,404 INFO L470 AbstractCegarLoop]: Abstraction has 3439 states and 6896 transitions. [2022-01-17 23:54:22,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:22,404 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 6896 transitions. [2022-01-17 23:54:22,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-17 23:54:22,406 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:22,406 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:22,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-17 23:54:22,406 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:22,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:22,407 INFO L85 PathProgramCache]: Analyzing trace with hash -2130431944, now seen corresponding path program 6 times [2022-01-17 23:54:22,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:22,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527286452] [2022-01-17 23:54:22,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:22,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:22,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:22,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:22,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527286452] [2022-01-17 23:54:22,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527286452] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:22,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:22,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-17 23:54:22,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518340627] [2022-01-17 23:54:22,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:22,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-17 23:54:22,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:22,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-17 23:54:22,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2022-01-17 23:54:22,665 INFO L87 Difference]: Start difference. First operand 3439 states and 6896 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:24,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:24,083 INFO L93 Difference]: Finished difference Result 6444 states and 12922 transitions. [2022-01-17 23:54:24,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-17 23:54:24,084 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-17 23:54:24,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:24,091 INFO L225 Difference]: With dead ends: 6444 [2022-01-17 23:54:24,091 INFO L226 Difference]: Without dead ends: 6444 [2022-01-17 23:54:24,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=598, Invalid=2482, Unknown=0, NotChecked=0, Total=3080 [2022-01-17 23:54:24,092 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 2089 mSDsluCounter, 2683 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2089 SdHoareTripleChecker+Valid, 3033 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:24,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2089 Valid, 3033 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:54:24,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6444 states. [2022-01-17 23:54:24,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6444 to 3442. [2022-01-17 23:54:24,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3442 states, 3440 states have (on average 2.0063953488372093) internal successors, (6902), 3441 states have internal predecessors, (6902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:24,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3442 states to 3442 states and 6902 transitions. [2022-01-17 23:54:24,133 INFO L78 Accepts]: Start accepts. Automaton has 3442 states and 6902 transitions. Word has length 81 [2022-01-17 23:54:24,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:24,133 INFO L470 AbstractCegarLoop]: Abstraction has 3442 states and 6902 transitions. [2022-01-17 23:54:24,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:24,133 INFO L276 IsEmpty]: Start isEmpty. Operand 3442 states and 6902 transitions. [2022-01-17 23:54:24,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-17 23:54:24,135 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:24,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:24,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-17 23:54:24,136 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:24,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:24,136 INFO L85 PathProgramCache]: Analyzing trace with hash 661554486, now seen corresponding path program 7 times [2022-01-17 23:54:24,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:24,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047146253] [2022-01-17 23:54:24,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:24,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:24,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:24,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:24,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047146253] [2022-01-17 23:54:24,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047146253] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:24,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:24,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-17 23:54:24,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000131199] [2022-01-17 23:54:24,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:24,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-17 23:54:24,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:24,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-17 23:54:24,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2022-01-17 23:54:24,370 INFO L87 Difference]: Start difference. First operand 3442 states and 6902 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:25,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:25,961 INFO L93 Difference]: Finished difference Result 6055 states and 12124 transitions. [2022-01-17 23:54:25,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-17 23:54:25,962 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-17 23:54:25,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:25,969 INFO L225 Difference]: With dead ends: 6055 [2022-01-17 23:54:25,969 INFO L226 Difference]: Without dead ends: 6055 [2022-01-17 23:54:25,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 824 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=670, Invalid=2752, Unknown=0, NotChecked=0, Total=3422 [2022-01-17 23:54:25,970 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 1993 mSDsluCounter, 3124 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1993 SdHoareTripleChecker+Valid, 3441 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:25,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1993 Valid, 3441 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1070 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:54:25,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6055 states. [2022-01-17 23:54:26,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6055 to 3436. [2022-01-17 23:54:26,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3436 states, 3434 states have (on average 2.006406523005242) internal successors, (6890), 3435 states have internal predecessors, (6890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:26,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3436 states to 3436 states and 6890 transitions. [2022-01-17 23:54:26,020 INFO L78 Accepts]: Start accepts. Automaton has 3436 states and 6890 transitions. Word has length 81 [2022-01-17 23:54:26,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:26,020 INFO L470 AbstractCegarLoop]: Abstraction has 3436 states and 6890 transitions. [2022-01-17 23:54:26,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:26,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3436 states and 6890 transitions. [2022-01-17 23:54:26,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-17 23:54:26,022 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:26,022 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:26,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-17 23:54:26,023 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:26,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:26,023 INFO L85 PathProgramCache]: Analyzing trace with hash 475759382, now seen corresponding path program 8 times [2022-01-17 23:54:26,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:26,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118152868] [2022-01-17 23:54:26,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:26,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:26,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:26,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:26,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118152868] [2022-01-17 23:54:26,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118152868] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:26,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:26,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-17 23:54:26,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134341165] [2022-01-17 23:54:26,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:26,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-17 23:54:26,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:26,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-17 23:54:26,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-01-17 23:54:26,281 INFO L87 Difference]: Start difference. First operand 3436 states and 6890 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:27,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:27,616 INFO L93 Difference]: Finished difference Result 5842 states and 11611 transitions. [2022-01-17 23:54:27,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:54:27,617 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-17 23:54:27,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:27,624 INFO L225 Difference]: With dead ends: 5842 [2022-01-17 23:54:27,624 INFO L226 Difference]: Without dead ends: 5842 [2022-01-17 23:54:27,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=527, Invalid=2023, Unknown=0, NotChecked=0, Total=2550 [2022-01-17 23:54:27,624 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 1513 mSDsluCounter, 3339 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 3642 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:27,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1513 Valid, 3642 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:54:27,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5842 states. [2022-01-17 23:54:27,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5842 to 3463. [2022-01-17 23:54:27,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3463 states, 3461 states have (on average 2.0063565443513434) internal successors, (6944), 3462 states have internal predecessors, (6944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:27,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 6944 transitions. [2022-01-17 23:54:27,673 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 6944 transitions. Word has length 81 [2022-01-17 23:54:27,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:27,674 INFO L470 AbstractCegarLoop]: Abstraction has 3463 states and 6944 transitions. [2022-01-17 23:54:27,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:27,674 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 6944 transitions. [2022-01-17 23:54:27,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-17 23:54:27,677 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:27,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:27,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-17 23:54:27,677 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:27,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:27,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1983120214, now seen corresponding path program 9 times [2022-01-17 23:54:27,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:27,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883384727] [2022-01-17 23:54:27,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:27,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:27,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:27,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:27,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883384727] [2022-01-17 23:54:27,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883384727] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:27,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:27,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-17 23:54:27,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137930563] [2022-01-17 23:54:27,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:27,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-17 23:54:27,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:27,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-17 23:54:27,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-01-17 23:54:27,945 INFO L87 Difference]: Start difference. First operand 3463 states and 6944 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:29,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:29,300 INFO L93 Difference]: Finished difference Result 5620 states and 11195 transitions. [2022-01-17 23:54:29,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-17 23:54:29,301 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-17 23:54:29,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:29,307 INFO L225 Difference]: With dead ends: 5620 [2022-01-17 23:54:29,307 INFO L226 Difference]: Without dead ends: 5620 [2022-01-17 23:54:29,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=552, Invalid=2310, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:54:29,308 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 1547 mSDsluCounter, 3198 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 3490 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:29,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 3490 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1156 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:54:29,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states. [2022-01-17 23:54:29,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 3466. [2022-01-17 23:54:29,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3466 states, 3464 states have (on average 2.00635103926097) internal successors, (6950), 3465 states have internal predecessors, (6950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:29,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3466 states to 3466 states and 6950 transitions. [2022-01-17 23:54:29,354 INFO L78 Accepts]: Start accepts. Automaton has 3466 states and 6950 transitions. Word has length 81 [2022-01-17 23:54:29,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:29,354 INFO L470 AbstractCegarLoop]: Abstraction has 3466 states and 6950 transitions. [2022-01-17 23:54:29,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:29,354 INFO L276 IsEmpty]: Start isEmpty. Operand 3466 states and 6950 transitions. [2022-01-17 23:54:29,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-17 23:54:29,356 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:29,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:29,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-17 23:54:29,357 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:29,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:29,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1173246378, now seen corresponding path program 10 times [2022-01-17 23:54:29,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:29,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016513291] [2022-01-17 23:54:29,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:29,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:29,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:29,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:29,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016513291] [2022-01-17 23:54:29,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016513291] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:29,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:29,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-17 23:54:29,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905960520] [2022-01-17 23:54:29,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:29,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-17 23:54:29,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:29,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-17 23:54:29,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-01-17 23:54:29,609 INFO L87 Difference]: Start difference. First operand 3466 states and 6950 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:31,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:31,016 INFO L93 Difference]: Finished difference Result 6725 states and 13452 transitions. [2022-01-17 23:54:31,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-17 23:54:31,017 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-17 23:54:31,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:31,026 INFO L225 Difference]: With dead ends: 6725 [2022-01-17 23:54:31,026 INFO L226 Difference]: Without dead ends: 6725 [2022-01-17 23:54:31,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 759 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=590, Invalid=2602, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:54:31,027 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 1899 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1899 SdHoareTripleChecker+Valid, 3722 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:31,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1899 Valid, 3722 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:54:31,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6725 states. [2022-01-17 23:54:31,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6725 to 3469. [2022-01-17 23:54:31,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3469 states, 3467 states have (on average 2.0063455436977216) internal successors, (6956), 3468 states have internal predecessors, (6956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:31,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3469 states to 3469 states and 6956 transitions. [2022-01-17 23:54:31,082 INFO L78 Accepts]: Start accepts. Automaton has 3469 states and 6956 transitions. Word has length 81 [2022-01-17 23:54:31,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:31,082 INFO L470 AbstractCegarLoop]: Abstraction has 3469 states and 6956 transitions. [2022-01-17 23:54:31,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:31,082 INFO L276 IsEmpty]: Start isEmpty. Operand 3469 states and 6956 transitions. [2022-01-17 23:54:31,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-17 23:54:31,085 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:31,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:31,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-17 23:54:31,085 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:31,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:31,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1618740052, now seen corresponding path program 11 times [2022-01-17 23:54:31,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:31,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777815846] [2022-01-17 23:54:31,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:31,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:31,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:31,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:31,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777815846] [2022-01-17 23:54:31,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777815846] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:31,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:31,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-17 23:54:31,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157738938] [2022-01-17 23:54:31,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:31,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-17 23:54:31,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:31,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-17 23:54:31,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-01-17 23:54:31,365 INFO L87 Difference]: Start difference. First operand 3469 states and 6956 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:32,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:32,929 INFO L93 Difference]: Finished difference Result 6664 states and 13326 transitions. [2022-01-17 23:54:32,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-17 23:54:32,929 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-17 23:54:32,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:32,936 INFO L225 Difference]: With dead ends: 6664 [2022-01-17 23:54:32,936 INFO L226 Difference]: Without dead ends: 6664 [2022-01-17 23:54:32,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 850 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=660, Invalid=2880, Unknown=0, NotChecked=0, Total=3540 [2022-01-17 23:54:32,937 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 1841 mSDsluCounter, 3409 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 3731 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:32,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1841 Valid, 3731 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:54:32,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6664 states. [2022-01-17 23:54:32,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6664 to 3445. [2022-01-17 23:54:32,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3445 states, 3443 states have (on average 2.0063897763578273) internal successors, (6908), 3444 states have internal predecessors, (6908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:32,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3445 states to 3445 states and 6908 transitions. [2022-01-17 23:54:32,980 INFO L78 Accepts]: Start accepts. Automaton has 3445 states and 6908 transitions. Word has length 81 [2022-01-17 23:54:32,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:32,981 INFO L470 AbstractCegarLoop]: Abstraction has 3445 states and 6908 transitions. [2022-01-17 23:54:32,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:32,981 INFO L276 IsEmpty]: Start isEmpty. Operand 3445 states and 6908 transitions. [2022-01-17 23:54:32,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-17 23:54:32,983 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:32,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:32,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-17 23:54:32,983 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:32,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:32,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1108840562, now seen corresponding path program 12 times [2022-01-17 23:54:32,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:32,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113452759] [2022-01-17 23:54:32,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:32,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:33,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:33,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:33,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113452759] [2022-01-17 23:54:33,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113452759] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:33,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:33,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-17 23:54:33,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981663110] [2022-01-17 23:54:33,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:33,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-17 23:54:33,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:33,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-17 23:54:33,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-01-17 23:54:33,269 INFO L87 Difference]: Start difference. First operand 3445 states and 6908 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:34,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:34,524 INFO L93 Difference]: Finished difference Result 5448 states and 10881 transitions. [2022-01-17 23:54:34,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-17 23:54:34,524 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-17 23:54:34,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:34,530 INFO L225 Difference]: With dead ends: 5448 [2022-01-17 23:54:34,530 INFO L226 Difference]: Without dead ends: 5448 [2022-01-17 23:54:34,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=500, Invalid=1950, Unknown=0, NotChecked=0, Total=2450 [2022-01-17 23:54:34,531 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 1251 mSDsluCounter, 3132 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 3436 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:34,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1251 Valid, 3436 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:54:34,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5448 states. [2022-01-17 23:54:34,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5448 to 3451. [2022-01-17 23:54:34,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3451 states, 3449 states have (on average 2.0063786604812988) internal successors, (6920), 3450 states have internal predecessors, (6920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:34,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3451 states to 3451 states and 6920 transitions. [2022-01-17 23:54:34,572 INFO L78 Accepts]: Start accepts. Automaton has 3451 states and 6920 transitions. Word has length 81 [2022-01-17 23:54:34,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:34,573 INFO L470 AbstractCegarLoop]: Abstraction has 3451 states and 6920 transitions. [2022-01-17 23:54:34,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:34,573 INFO L276 IsEmpty]: Start isEmpty. Operand 3451 states and 6920 transitions. [2022-01-17 23:54:34,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-17 23:54:34,574 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:34,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:34,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-17 23:54:34,575 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:34,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:34,575 INFO L85 PathProgramCache]: Analyzing trace with hash 2023906220, now seen corresponding path program 13 times [2022-01-17 23:54:34,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:34,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89450296] [2022-01-17 23:54:34,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:34,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:34,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:34,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:34,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89450296] [2022-01-17 23:54:34,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89450296] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:34,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:34,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-17 23:54:34,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248211760] [2022-01-17 23:54:34,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:34,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-17 23:54:34,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:34,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-17 23:54:34,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-01-17 23:54:34,839 INFO L87 Difference]: Start difference. First operand 3451 states and 6920 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:36,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:36,175 INFO L93 Difference]: Finished difference Result 5812 states and 11578 transitions. [2022-01-17 23:54:36,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:54:36,175 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-17 23:54:36,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:36,182 INFO L225 Difference]: With dead ends: 5812 [2022-01-17 23:54:36,182 INFO L226 Difference]: Without dead ends: 5812 [2022-01-17 23:54:36,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=524, Invalid=2026, Unknown=0, NotChecked=0, Total=2550 [2022-01-17 23:54:36,183 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 1375 mSDsluCounter, 2969 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 3289 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:36,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1375 Valid, 3289 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:54:36,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5812 states. [2022-01-17 23:54:36,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5812 to 3451. [2022-01-17 23:54:36,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3451 states, 3449 states have (on average 2.0063786604812988) internal successors, (6920), 3450 states have internal predecessors, (6920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:36,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3451 states to 3451 states and 6920 transitions. [2022-01-17 23:54:36,226 INFO L78 Accepts]: Start accepts. Automaton has 3451 states and 6920 transitions. Word has length 81 [2022-01-17 23:54:36,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:36,226 INFO L470 AbstractCegarLoop]: Abstraction has 3451 states and 6920 transitions. [2022-01-17 23:54:36,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:36,226 INFO L276 IsEmpty]: Start isEmpty. Operand 3451 states and 6920 transitions. [2022-01-17 23:54:36,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-17 23:54:36,228 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:36,228 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:36,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-17 23:54:36,228 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:36,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:36,228 INFO L85 PathProgramCache]: Analyzing trace with hash -763700244, now seen corresponding path program 14 times [2022-01-17 23:54:36,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:36,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059749338] [2022-01-17 23:54:36,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:36,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:36,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:36,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:36,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059749338] [2022-01-17 23:54:36,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059749338] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:36,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:36,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-17 23:54:36,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008533658] [2022-01-17 23:54:36,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:36,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-17 23:54:36,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:36,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-17 23:54:36,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-01-17 23:54:36,462 INFO L87 Difference]: Start difference. First operand 3451 states and 6920 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:37,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:37,770 INFO L93 Difference]: Finished difference Result 5569 states and 11128 transitions. [2022-01-17 23:54:37,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-17 23:54:37,770 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-17 23:54:37,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:37,776 INFO L225 Difference]: With dead ends: 5569 [2022-01-17 23:54:37,776 INFO L226 Difference]: Without dead ends: 5569 [2022-01-17 23:54:37,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=549, Invalid=2313, Unknown=0, NotChecked=0, Total=2862 [2022-01-17 23:54:37,777 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 1630 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1630 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:37,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1630 Valid, 2801 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:54:37,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5569 states. [2022-01-17 23:54:37,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5569 to 3451. [2022-01-17 23:54:37,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3451 states, 3449 states have (on average 2.0063786604812988) internal successors, (6920), 3450 states have internal predecessors, (6920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:37,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3451 states to 3451 states and 6920 transitions. [2022-01-17 23:54:37,819 INFO L78 Accepts]: Start accepts. Automaton has 3451 states and 6920 transitions. Word has length 81 [2022-01-17 23:54:37,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:37,819 INFO L470 AbstractCegarLoop]: Abstraction has 3451 states and 6920 transitions. [2022-01-17 23:54:37,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:37,819 INFO L276 IsEmpty]: Start isEmpty. Operand 3451 states and 6920 transitions. [2022-01-17 23:54:37,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-17 23:54:37,821 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:37,821 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:37,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-17 23:54:37,821 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:37,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:37,821 INFO L85 PathProgramCache]: Analyzing trace with hash 374900460, now seen corresponding path program 15 times [2022-01-17 23:54:37,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:37,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266639340] [2022-01-17 23:54:37,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:37,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:38,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:38,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:38,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266639340] [2022-01-17 23:54:38,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266639340] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:38,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:38,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-17 23:54:38,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92833553] [2022-01-17 23:54:38,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:38,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-17 23:54:38,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:38,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-17 23:54:38,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-01-17 23:54:38,078 INFO L87 Difference]: Start difference. First operand 3451 states and 6920 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:39,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:39,477 INFO L93 Difference]: Finished difference Result 6669 states and 13376 transitions. [2022-01-17 23:54:39,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-17 23:54:39,477 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-17 23:54:39,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:39,485 INFO L225 Difference]: With dead ends: 6669 [2022-01-17 23:54:39,485 INFO L226 Difference]: Without dead ends: 6669 [2022-01-17 23:54:39,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=586, Invalid=2606, Unknown=0, NotChecked=0, Total=3192 [2022-01-17 23:54:39,486 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 1659 mSDsluCounter, 3168 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 3540 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:39,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1659 Valid, 3540 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:54:39,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6669 states. [2022-01-17 23:54:39,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6669 to 3445. [2022-01-17 23:54:39,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3445 states, 3443 states have (on average 2.0063897763578273) internal successors, (6908), 3444 states have internal predecessors, (6908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:39,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3445 states to 3445 states and 6908 transitions. [2022-01-17 23:54:39,533 INFO L78 Accepts]: Start accepts. Automaton has 3445 states and 6908 transitions. Word has length 81 [2022-01-17 23:54:39,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:39,533 INFO L470 AbstractCegarLoop]: Abstraction has 3445 states and 6908 transitions. [2022-01-17 23:54:39,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:39,533 INFO L276 IsEmpty]: Start isEmpty. Operand 3445 states and 6908 transitions. [2022-01-17 23:54:39,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-17 23:54:39,535 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:39,535 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:39,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-17 23:54:39,535 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:39,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:39,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1128080406, now seen corresponding path program 16 times [2022-01-17 23:54:39,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:39,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186491624] [2022-01-17 23:54:39,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:39,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:39,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:39,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:39,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186491624] [2022-01-17 23:54:39,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186491624] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:39,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:39,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-17 23:54:39,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058050163] [2022-01-17 23:54:39,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:39,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-17 23:54:39,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:39,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-17 23:54:39,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-01-17 23:54:39,774 INFO L87 Difference]: Start difference. First operand 3445 states and 6908 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:41,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:41,336 INFO L93 Difference]: Finished difference Result 6608 states and 13250 transitions. [2022-01-17 23:54:41,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-17 23:54:41,336 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-17 23:54:41,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:41,344 INFO L225 Difference]: With dead ends: 6608 [2022-01-17 23:54:41,344 INFO L226 Difference]: Without dead ends: 6608 [2022-01-17 23:54:41,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 853 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=657, Invalid=2883, Unknown=0, NotChecked=0, Total=3540 [2022-01-17 23:54:41,345 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 1680 mSDsluCounter, 3538 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:41,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1680 Valid, 3877 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:54:41,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6608 states. [2022-01-17 23:54:41,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6608 to 3421. [2022-01-17 23:54:41,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3421 states, 3419 states have (on average 2.0064346300087745) internal successors, (6860), 3420 states have internal predecessors, (6860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:41,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3421 states to 3421 states and 6860 transitions. [2022-01-17 23:54:41,386 INFO L78 Accepts]: Start accepts. Automaton has 3421 states and 6860 transitions. Word has length 81 [2022-01-17 23:54:41,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:41,386 INFO L470 AbstractCegarLoop]: Abstraction has 3421 states and 6860 transitions. [2022-01-17 23:54:41,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:41,386 INFO L276 IsEmpty]: Start isEmpty. Operand 3421 states and 6860 transitions. [2022-01-17 23:54:41,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-17 23:54:41,388 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:41,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:41,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-17 23:54:41,389 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:41,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:41,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1637979896, now seen corresponding path program 17 times [2022-01-17 23:54:41,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:41,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964890402] [2022-01-17 23:54:41,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:41,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:41,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:41,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:41,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964890402] [2022-01-17 23:54:41,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964890402] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:41,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:41,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-17 23:54:41,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979198476] [2022-01-17 23:54:41,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:41,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-17 23:54:41,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:41,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-17 23:54:41,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-01-17 23:54:41,617 INFO L87 Difference]: Start difference. First operand 3421 states and 6860 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:42,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:42,951 INFO L93 Difference]: Finished difference Result 6000 states and 11941 transitions. [2022-01-17 23:54:42,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:54:42,952 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-17 23:54:42,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:42,958 INFO L225 Difference]: With dead ends: 6000 [2022-01-17 23:54:42,958 INFO L226 Difference]: Without dead ends: 6000 [2022-01-17 23:54:42,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=524, Invalid=2026, Unknown=0, NotChecked=0, Total=2550 [2022-01-17 23:54:42,959 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 1324 mSDsluCounter, 3266 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 3592 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:42,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1324 Valid, 3592 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:54:42,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6000 states. [2022-01-17 23:54:42,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6000 to 3412. [2022-01-17 23:54:42,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 3410 states have (on average 2.0064516129032257) internal successors, (6842), 3411 states have internal predecessors, (6842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:43,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 6842 transitions. [2022-01-17 23:54:43,000 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 6842 transitions. Word has length 81 [2022-01-17 23:54:43,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:43,000 INFO L470 AbstractCegarLoop]: Abstraction has 3412 states and 6842 transitions. [2022-01-17 23:54:43,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:43,000 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 6842 transitions. [2022-01-17 23:54:43,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-17 23:54:43,002 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:43,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:43,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-17 23:54:43,002 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:43,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:43,002 INFO L85 PathProgramCache]: Analyzing trace with hash -2035292628, now seen corresponding path program 18 times [2022-01-17 23:54:43,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:43,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909915169] [2022-01-17 23:54:43,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:43,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:43,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:43,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:43,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909915169] [2022-01-17 23:54:43,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909915169] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:54:43,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:54:43,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-17 23:54:43,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387259215] [2022-01-17 23:54:43,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:54:43,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-17 23:54:43,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:43,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-17 23:54:43,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2022-01-17 23:54:43,244 INFO L87 Difference]: Start difference. First operand 3412 states and 6842 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:44,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:44,449 INFO L93 Difference]: Finished difference Result 5400 states and 10821 transitions. [2022-01-17 23:54:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-17 23:54:44,450 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-17 23:54:44,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:44,456 INFO L225 Difference]: With dead ends: 5400 [2022-01-17 23:54:44,457 INFO L226 Difference]: Without dead ends: 5400 [2022-01-17 23:54:44,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=520, Invalid=2030, Unknown=0, NotChecked=0, Total=2550 [2022-01-17 23:54:44,457 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 1703 mSDsluCounter, 2504 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1703 SdHoareTripleChecker+Valid, 2835 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:44,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1703 Valid, 2835 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:54:44,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5400 states. [2022-01-17 23:54:44,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5400 to 3386. [2022-01-17 23:54:44,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3384 states have (on average 2.009160756501182) internal successors, (6799), 3385 states have internal predecessors, (6799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:44,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 6799 transitions. [2022-01-17 23:54:44,530 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 6799 transitions. Word has length 81 [2022-01-17 23:54:44,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:44,530 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 6799 transitions. [2022-01-17 23:54:44,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:44,530 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 6799 transitions. [2022-01-17 23:54:44,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-17 23:54:44,533 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:44,533 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:44,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-17 23:54:44,533 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:44,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:44,534 INFO L85 PathProgramCache]: Analyzing trace with hash -820424251, now seen corresponding path program 1 times [2022-01-17 23:54:44,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:44,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459027310] [2022-01-17 23:54:44,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:44,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:44,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:44,788 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:44,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:44,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459027310] [2022-01-17 23:54:44,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459027310] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:54:44,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175843927] [2022-01-17 23:54:44,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:44,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:54:44,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:54:44,790 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:54:44,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-17 23:54:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:44,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 43 conjunts are in the unsatisfiable core [2022-01-17 23:54:44,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:54:45,144 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-17 23:54:45,145 INFO L387 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 11 [2022-01-17 23:54:45,284 INFO L387 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 [2022-01-17 23:54:45,406 INFO L387 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 14 treesize of output 16 [2022-01-17 23:54:45,801 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:54:45,990 INFO L387 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 [2022-01-17 23:54:46,005 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:46,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:54:46,491 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_689 (Array Int Int))) (<= 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_689) |c_~#pqb~0.base|) |c_~#pqb~0.offset|))) is different from false [2022-01-17 23:54:46,526 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:54:46,526 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-01-17 23:54:46,534 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:54:46,534 INFO L387 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 30 treesize of output 33 [2022-01-17 23:54:46,538 INFO L387 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 9 treesize of output 7 [2022-01-17 23:54:46,692 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-17 23:54:46,692 INFO L387 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 13 treesize of output 12 [2022-01-17 23:54:46,702 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:46,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175843927] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:54:46,702 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:54:46,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 17] total 45 [2022-01-17 23:54:46,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86398261] [2022-01-17 23:54:46,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:54:46,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-01-17 23:54:46,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:46,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-01-17 23:54:46,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1711, Unknown=1, NotChecked=84, Total=1980 [2022-01-17 23:54:46,705 INFO L87 Difference]: Start difference. First operand 3386 states and 6799 transitions. Second operand has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:49,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:49,318 INFO L93 Difference]: Finished difference Result 7054 states and 14168 transitions. [2022-01-17 23:54:49,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-17 23:54:49,318 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-01-17 23:54:49,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:49,328 INFO L225 Difference]: With dead ends: 7054 [2022-01-17 23:54:49,328 INFO L226 Difference]: Without dead ends: 7054 [2022-01-17 23:54:49,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 164 SyntacticMatches, 7 SemanticMatches, 81 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1691 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1321, Invalid=5324, Unknown=1, NotChecked=160, Total=6806 [2022-01-17 23:54:49,329 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 3072 mSDsluCounter, 5239 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3072 SdHoareTripleChecker+Valid, 5618 SdHoareTripleChecker+Invalid, 2508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1112 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:49,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3072 Valid, 5618 Invalid, 2508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1280 Invalid, 0 Unknown, 1112 Unchecked, 0.6s Time] [2022-01-17 23:54:49,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7054 states. [2022-01-17 23:54:49,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7054 to 4250. [2022-01-17 23:54:49,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4250 states, 4248 states have (on average 2.0185969868173257) internal successors, (8575), 4249 states have internal predecessors, (8575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:49,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4250 states to 4250 states and 8575 transitions. [2022-01-17 23:54:49,389 INFO L78 Accepts]: Start accepts. Automaton has 4250 states and 8575 transitions. Word has length 94 [2022-01-17 23:54:49,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:49,389 INFO L470 AbstractCegarLoop]: Abstraction has 4250 states and 8575 transitions. [2022-01-17 23:54:49,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:49,390 INFO L276 IsEmpty]: Start isEmpty. Operand 4250 states and 8575 transitions. [2022-01-17 23:54:49,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-17 23:54:49,393 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:49,393 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:49,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-17 23:54:49,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-01-17 23:54:49,594 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:49,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:49,594 INFO L85 PathProgramCache]: Analyzing trace with hash 339187099, now seen corresponding path program 2 times [2022-01-17 23:54:49,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:49,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927991374] [2022-01-17 23:54:49,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:49,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:49,871 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:49,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:49,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927991374] [2022-01-17 23:54:49,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927991374] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:54:49,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102668297] [2022-01-17 23:54:49,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-17 23:54:49,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:54:49,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:54:49,873 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:54:49,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-17 23:54:49,977 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-17 23:54:49,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:54:49,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 43 conjunts are in the unsatisfiable core [2022-01-17 23:54:49,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:54:50,113 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-17 23:54:50,114 INFO L387 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 11 [2022-01-17 23:54:50,235 INFO L387 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 [2022-01-17 23:54:50,321 INFO L387 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 14 treesize of output 16 [2022-01-17 23:54:50,768 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:54:50,946 INFO L387 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 [2022-01-17 23:54:50,958 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:50,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:54:51,311 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_726 (Array Int Int))) (<= 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_726) |c_~#pqb~0.base|) |c_~#pqb~0.offset|))) is different from false [2022-01-17 23:54:51,340 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:54:51,340 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-01-17 23:54:51,346 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:54:51,346 INFO L387 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 30 treesize of output 33 [2022-01-17 23:54:51,350 INFO L387 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 9 treesize of output 7 [2022-01-17 23:54:51,478 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-17 23:54:51,478 INFO L387 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 13 treesize of output 12 [2022-01-17 23:54:51,486 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:51,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102668297] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:54:51,487 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:54:51,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 17] total 45 [2022-01-17 23:54:51,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461918160] [2022-01-17 23:54:51,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:54:51,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-01-17 23:54:51,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:51,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-01-17 23:54:51,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1708, Unknown=1, NotChecked=84, Total=1980 [2022-01-17 23:54:51,488 INFO L87 Difference]: Start difference. First operand 4250 states and 8575 transitions. Second operand has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:53,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:53,952 INFO L93 Difference]: Finished difference Result 9523 states and 19206 transitions. [2022-01-17 23:54:53,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-17 23:54:53,952 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-01-17 23:54:53,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:53,963 INFO L225 Difference]: With dead ends: 9523 [2022-01-17 23:54:53,963 INFO L226 Difference]: Without dead ends: 9523 [2022-01-17 23:54:53,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 168 SyntacticMatches, 7 SemanticMatches, 82 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1764 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1421, Invalid=5388, Unknown=1, NotChecked=162, Total=6972 [2022-01-17 23:54:53,964 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 3669 mSDsluCounter, 4954 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3669 SdHoareTripleChecker+Valid, 5346 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 673 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:53,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3669 Valid, 5346 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1399 Invalid, 0 Unknown, 673 Unchecked, 0.6s Time] [2022-01-17 23:54:53,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9523 states. [2022-01-17 23:54:54,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9523 to 4369. [2022-01-17 23:54:54,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4369 states, 4367 states have (on average 2.0116784978245934) internal successors, (8785), 4368 states have internal predecessors, (8785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:54,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4369 states to 4369 states and 8785 transitions. [2022-01-17 23:54:54,022 INFO L78 Accepts]: Start accepts. Automaton has 4369 states and 8785 transitions. Word has length 94 [2022-01-17 23:54:54,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:54,023 INFO L470 AbstractCegarLoop]: Abstraction has 4369 states and 8785 transitions. [2022-01-17 23:54:54,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:54,023 INFO L276 IsEmpty]: Start isEmpty. Operand 4369 states and 8785 transitions. [2022-01-17 23:54:54,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-17 23:54:54,025 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:54,025 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:54,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-17 23:54:54,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2022-01-17 23:54:54,226 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:54,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:54,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1501853757, now seen corresponding path program 3 times [2022-01-17 23:54:54,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:54,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029672103] [2022-01-17 23:54:54,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:54,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:54,460 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:54,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:54,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029672103] [2022-01-17 23:54:54,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029672103] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:54:54,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695300154] [2022-01-17 23:54:54,461 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-17 23:54:54,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:54:54,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:54:54,464 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:54:54,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-17 23:54:54,562 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-17 23:54:54,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:54:54,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 43 conjunts are in the unsatisfiable core [2022-01-17 23:54:54,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:54:54,698 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-17 23:54:54,699 INFO L387 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 11 [2022-01-17 23:54:54,828 INFO L387 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 [2022-01-17 23:54:54,918 INFO L387 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 14 treesize of output 16 [2022-01-17 23:54:55,250 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:54:55,395 INFO L387 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 [2022-01-17 23:54:55,405 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:55,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:54:55,750 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_763 (Array Int Int))) (<= 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_763) |c_~#pqb~0.base|) |c_~#pqb~0.offset|))) is different from false [2022-01-17 23:54:55,775 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:54:55,776 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-01-17 23:54:55,782 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:54:55,782 INFO L387 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 30 treesize of output 33 [2022-01-17 23:54:55,785 INFO L387 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 9 treesize of output 7 [2022-01-17 23:54:55,922 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-17 23:54:55,922 INFO L387 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 13 treesize of output 12 [2022-01-17 23:54:55,930 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:55,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695300154] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:54:55,930 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:54:55,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 17] total 45 [2022-01-17 23:54:55,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282060905] [2022-01-17 23:54:55,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:54:55,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-01-17 23:54:55,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:54:55,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-01-17 23:54:55,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1716, Unknown=1, NotChecked=84, Total=1980 [2022-01-17 23:54:55,932 INFO L87 Difference]: Start difference. First operand 4369 states and 8785 transitions. Second operand has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:58,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:54:58,426 INFO L93 Difference]: Finished difference Result 9891 states and 19888 transitions. [2022-01-17 23:54:58,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-17 23:54:58,427 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-01-17 23:54:58,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:54:58,439 INFO L225 Difference]: With dead ends: 9891 [2022-01-17 23:54:58,439 INFO L226 Difference]: Without dead ends: 9891 [2022-01-17 23:54:58,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 166 SyntacticMatches, 3 SemanticMatches, 81 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1492 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1362, Invalid=5283, Unknown=1, NotChecked=160, Total=6806 [2022-01-17 23:54:58,441 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 3333 mSDsluCounter, 5450 mSDsCounter, 0 mSdLazyCounter, 1422 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3333 SdHoareTripleChecker+Valid, 5846 SdHoareTripleChecker+Invalid, 2376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 819 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:54:58,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3333 Valid, 5846 Invalid, 2376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1422 Invalid, 0 Unknown, 819 Unchecked, 0.6s Time] [2022-01-17 23:54:58,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9891 states. [2022-01-17 23:54:58,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9891 to 4483. [2022-01-17 23:54:58,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4483 states, 4481 states have (on average 2.0127203749163134) internal successors, (9019), 4482 states have internal predecessors, (9019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:58,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4483 states to 4483 states and 9019 transitions. [2022-01-17 23:54:58,510 INFO L78 Accepts]: Start accepts. Automaton has 4483 states and 9019 transitions. Word has length 94 [2022-01-17 23:54:58,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:54:58,510 INFO L470 AbstractCegarLoop]: Abstraction has 4483 states and 9019 transitions. [2022-01-17 23:54:58,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:54:58,511 INFO L276 IsEmpty]: Start isEmpty. Operand 4483 states and 9019 transitions. [2022-01-17 23:54:58,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-17 23:54:58,514 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:54:58,514 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:54:58,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-17 23:54:58,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:54:58,715 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:54:58,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:54:58,730 INFO L85 PathProgramCache]: Analyzing trace with hash 420528999, now seen corresponding path program 4 times [2022-01-17 23:54:58,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:54:58,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944475020] [2022-01-17 23:54:58,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:54:58,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:54:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:54:58,985 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:58,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:54:58,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944475020] [2022-01-17 23:54:58,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944475020] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:54:58,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023515721] [2022-01-17 23:54:58,986 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-17 23:54:58,986 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:54:58,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:54:58,987 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:54:58,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-17 23:54:59,075 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-17 23:54:59,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:54:59,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 45 conjunts are in the unsatisfiable core [2022-01-17 23:54:59,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:54:59,234 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-17 23:54:59,235 INFO L387 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 11 [2022-01-17 23:54:59,338 INFO L387 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 [2022-01-17 23:54:59,416 INFO L387 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 14 treesize of output 16 [2022-01-17 23:54:59,725 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:54:59,906 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:54:59,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:55:00,247 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_800 (Array Int Int))) (<= 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_800) |c_~#pqb~0.base|) |c_~#pqb~0.offset|))) is different from false [2022-01-17 23:55:00,275 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:55:00,275 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-01-17 23:55:00,282 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:55:00,282 INFO L387 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 30 treesize of output 33 [2022-01-17 23:55:00,287 INFO L387 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 9 treesize of output 7 [2022-01-17 23:55:00,444 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-17 23:55:00,444 INFO L387 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 13 treesize of output 12 [2022-01-17 23:55:00,452 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:55:00,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023515721] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:55:00,453 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:55:00,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 17] total 46 [2022-01-17 23:55:00,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074728097] [2022-01-17 23:55:00,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:55:00,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-01-17 23:55:00,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:55:00,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-01-17 23:55:00,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1797, Unknown=1, NotChecked=86, Total=2070 [2022-01-17 23:55:00,454 INFO L87 Difference]: Start difference. First operand 4483 states and 9019 transitions. Second operand has 46 states, 46 states have (on average 5.0) internal successors, (230), 46 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:55:02,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:55:02,904 INFO L93 Difference]: Finished difference Result 9836 states and 19719 transitions. [2022-01-17 23:55:02,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-17 23:55:02,905 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 5.0) internal successors, (230), 46 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-01-17 23:55:02,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:55:02,925 INFO L225 Difference]: With dead ends: 9836 [2022-01-17 23:55:02,925 INFO L226 Difference]: Without dead ends: 9836 [2022-01-17 23:55:02,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 168 SyntacticMatches, 7 SemanticMatches, 80 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1571 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1285, Invalid=5198, Unknown=1, NotChecked=158, Total=6642 [2022-01-17 23:55:02,926 INFO L933 BasicCegarLoop]: 415 mSDtfsCounter, 3536 mSDsluCounter, 5499 mSDsCounter, 0 mSdLazyCounter, 1452 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3536 SdHoareTripleChecker+Valid, 5914 SdHoareTripleChecker+Invalid, 2378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 1452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 797 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:55:02,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3536 Valid, 5914 Invalid, 2378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 1452 Invalid, 0 Unknown, 797 Unchecked, 0.6s Time] [2022-01-17 23:55:02,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9836 states. [2022-01-17 23:55:03,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9836 to 4124. [2022-01-17 23:55:03,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4124 states, 4122 states have (on average 2.005337214944202) internal successors, (8266), 4123 states have internal predecessors, (8266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:55:03,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4124 states to 4124 states and 8266 transitions. [2022-01-17 23:55:03,015 INFO L78 Accepts]: Start accepts. Automaton has 4124 states and 8266 transitions. Word has length 94 [2022-01-17 23:55:03,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:55:03,015 INFO L470 AbstractCegarLoop]: Abstraction has 4124 states and 8266 transitions. [2022-01-17 23:55:03,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 5.0) internal successors, (230), 46 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:55:03,016 INFO L276 IsEmpty]: Start isEmpty. Operand 4124 states and 8266 transitions. [2022-01-17 23:55:03,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-17 23:55:03,019 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:55:03,019 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:55:03,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-17 23:55:03,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2022-01-17 23:55:03,220 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:55:03,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:55:03,220 INFO L85 PathProgramCache]: Analyzing trace with hash -579571583, now seen corresponding path program 1 times [2022-01-17 23:55:03,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:55:03,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404579681] [2022-01-17 23:55:03,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:55:03,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:55:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:55:03,389 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:55:03,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:55:03,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404579681] [2022-01-17 23:55:03,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404579681] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:55:03,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:55:03,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-17 23:55:03,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346632651] [2022-01-17 23:55:03,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:55:03,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-17 23:55:03,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:55:03,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-17 23:55:03,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:55:03,390 INFO L87 Difference]: Start difference. First operand 4124 states and 8266 transitions. Second operand has 15 states, 15 states have (on average 6.4) internal successors, (96), 15 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:55:03,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:55:03,845 INFO L93 Difference]: Finished difference Result 3495 states and 6986 transitions. [2022-01-17 23:55:03,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:55:03,845 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.4) internal successors, (96), 15 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-01-17 23:55:03,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:55:03,850 INFO L225 Difference]: With dead ends: 3495 [2022-01-17 23:55:03,851 INFO L226 Difference]: Without dead ends: 3180 [2022-01-17 23:55:03,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2022-01-17 23:55:03,851 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 662 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:55:03,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [662 Valid, 1498 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:55:03,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3180 states. [2022-01-17 23:55:03,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3180 to 3172. [2022-01-17 23:55:03,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3172 states, 3170 states have (on average 2.00410094637224) internal successors, (6353), 3171 states have internal predecessors, (6353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:55:03,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3172 states to 3172 states and 6353 transitions. [2022-01-17 23:55:03,894 INFO L78 Accepts]: Start accepts. Automaton has 3172 states and 6353 transitions. Word has length 96 [2022-01-17 23:55:03,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:55:03,894 INFO L470 AbstractCegarLoop]: Abstraction has 3172 states and 6353 transitions. [2022-01-17 23:55:03,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.4) internal successors, (96), 15 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:55:03,895 INFO L276 IsEmpty]: Start isEmpty. Operand 3172 states and 6353 transitions. [2022-01-17 23:55:03,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:55:03,898 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:55:03,898 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:55:03,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-17 23:55:03,898 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:55:03,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:55:03,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1471731716, now seen corresponding path program 5 times [2022-01-17 23:55:03,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:55:03,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634824250] [2022-01-17 23:55:03,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:55:03,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:55:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:55:04,247 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:55:04,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:55:04,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634824250] [2022-01-17 23:55:04,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634824250] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:55:04,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511748487] [2022-01-17 23:55:04,247 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-17 23:55:04,247 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:55:04,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:55:04,252 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:55:04,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-17 23:55:04,348 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-17 23:55:04,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:55:04,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core [2022-01-17 23:55:04,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:55:04,471 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-17 23:55:04,471 INFO L387 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 11 [2022-01-17 23:55:04,580 INFO L387 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 [2022-01-17 23:55:04,668 INFO L387 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 14 treesize of output 16 [2022-01-17 23:55:04,944 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:55:05,251 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:55:05,381 INFO L387 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 [2022-01-17 23:55:05,407 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:55:05,407 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-17 23:55:05,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511748487] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:55:05,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-17 23:55:05,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [27] total 47 [2022-01-17 23:55:05,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641497880] [2022-01-17 23:55:05,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:55:05,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:55:05,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:55:05,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:55:05,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=1919, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:55:05,409 INFO L87 Difference]: Start difference. First operand 3172 states and 6353 transitions. Second operand has 22 states, 22 states have (on average 4.818181818181818) internal successors, (106), 22 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:55:06,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:55:06,996 INFO L93 Difference]: Finished difference Result 6982 states and 14000 transitions. [2022-01-17 23:55:06,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-17 23:55:06,997 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.818181818181818) internal successors, (106), 22 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:55:06,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:55:07,007 INFO L225 Difference]: With dead ends: 6982 [2022-01-17 23:55:07,007 INFO L226 Difference]: Without dead ends: 6982 [2022-01-17 23:55:07,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1521 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1330, Invalid=4832, Unknown=0, NotChecked=0, Total=6162 [2022-01-17 23:55:07,008 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 1907 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1907 SdHoareTripleChecker+Valid, 2514 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:55:07,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1907 Valid, 2514 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:55:07,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6982 states. [2022-01-17 23:55:07,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6982 to 3300. [2022-01-17 23:55:07,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 3298 states have (on average 2.0051546391752577) internal successors, (6613), 3299 states have internal predecessors, (6613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:55:07,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 6613 transitions. [2022-01-17 23:55:07,062 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 6613 transitions. Word has length 106 [2022-01-17 23:55:07,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:55:07,063 INFO L470 AbstractCegarLoop]: Abstraction has 3300 states and 6613 transitions. [2022-01-17 23:55:07,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.818181818181818) internal successors, (106), 22 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:55:07,063 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 6613 transitions. [2022-01-17 23:55:07,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:55:07,065 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:55:07,065 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:55:07,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-01-17 23:55:07,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:55:07,276 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:55:07,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:55:07,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1681139458, now seen corresponding path program 6 times [2022-01-17 23:55:07,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:55:07,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940168143] [2022-01-17 23:55:07,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:55:07,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:55:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:55:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:55:07,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:55:07,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940168143] [2022-01-17 23:55:07,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940168143] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:55:07,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783727321] [2022-01-17 23:55:07,663 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-17 23:55:07,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:55:07,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:55:07,665 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:55:07,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-17 23:55:07,764 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-01-17 23:55:07,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:55:07,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core [2022-01-17 23:55:07,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:55:07,894 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-17 23:55:07,894 INFO L387 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 11 [2022-01-17 23:55:08,003 INFO L387 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 [2022-01-17 23:55:08,085 INFO L387 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 14 treesize of output 16 [2022-01-17 23:55:08,348 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:55:08,732 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:55:08,814 INFO L387 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 [2022-01-17 23:55:08,841 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:55:08,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:55:09,397 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_916 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_916) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false [2022-01-17 23:55:09,424 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:55:09,424 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-01-17 23:55:09,429 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:55:09,429 INFO L387 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 34 treesize of output 37 [2022-01-17 23:55:09,433 INFO L387 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 11 treesize of output 9 [2022-01-17 23:55:09,577 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-17 23:55:09,578 INFO L387 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 13 treesize of output 12 [2022-01-17 23:55:09,586 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:55:09,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783727321] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:55:09,586 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:55:09,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 22, 22] total 62 [2022-01-17 23:55:09,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948437032] [2022-01-17 23:55:09,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:55:09,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-01-17 23:55:09,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:55:09,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-01-17 23:55:09,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=386, Invalid=3277, Unknown=1, NotChecked=118, Total=3782 [2022-01-17 23:55:09,588 INFO L87 Difference]: Start difference. First operand 3300 states and 6613 transitions. Second operand has 62 states, 62 states have (on average 4.370967741935484) internal successors, (271), 62 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:55:14,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:55:14,865 INFO L93 Difference]: Finished difference Result 12947 states and 26179 transitions. [2022-01-17 23:55:14,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-01-17 23:55:14,866 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 4.370967741935484) internal successors, (271), 62 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:55:14,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:55:14,883 INFO L225 Difference]: With dead ends: 12947 [2022-01-17 23:55:14,884 INFO L226 Difference]: Without dead ends: 12947 [2022-01-17 23:55:14,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 194 SyntacticMatches, 9 SemanticMatches, 160 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8181 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=4214, Invalid=21549, Unknown=1, NotChecked=318, Total=26082 [2022-01-17 23:55:14,887 INFO L933 BasicCegarLoop]: 460 mSDtfsCounter, 4671 mSDsluCounter, 10297 mSDsCounter, 0 mSdLazyCounter, 3199 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4671 SdHoareTripleChecker+Valid, 10740 SdHoareTripleChecker+Invalid, 4448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1163 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:55:14,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4671 Valid, 10740 Invalid, 4448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3199 Invalid, 0 Unknown, 1163 Unchecked, 1.1s Time] [2022-01-17 23:55:14,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12947 states. [2022-01-17 23:55:14,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12947 to 2581. [2022-01-17 23:55:14,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2581 states, 2579 states have (on average 1.9945715393563397) internal successors, (5144), 2580 states have internal predecessors, (5144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:55:14,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2581 states to 2581 states and 5144 transitions. [2022-01-17 23:55:14,951 INFO L78 Accepts]: Start accepts. Automaton has 2581 states and 5144 transitions. Word has length 106 [2022-01-17 23:55:14,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:55:14,951 INFO L470 AbstractCegarLoop]: Abstraction has 2581 states and 5144 transitions. [2022-01-17 23:55:14,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 4.370967741935484) internal successors, (271), 62 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:55:14,951 INFO L276 IsEmpty]: Start isEmpty. Operand 2581 states and 5144 transitions. [2022-01-17 23:55:14,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:55:14,953 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:55:14,953 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:55:14,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-17 23:55:15,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:55:15,154 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:55:15,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:55:15,154 INFO L85 PathProgramCache]: Analyzing trace with hash -207921658, now seen corresponding path program 7 times [2022-01-17 23:55:15,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:55:15,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191030678] [2022-01-17 23:55:15,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:55:15,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:55:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:55:15,585 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:55:15,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:55:15,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191030678] [2022-01-17 23:55:15,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191030678] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:55:15,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052200426] [2022-01-17 23:55:15,586 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-17 23:55:15,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:55:15,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:55:15,588 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:55:15,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-17 23:55:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:55:15,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core [2022-01-17 23:55:15,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:55:15,808 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-17 23:55:15,808 INFO L387 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 11 [2022-01-17 23:55:15,924 INFO L387 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 [2022-01-17 23:55:16,004 INFO L387 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 14 treesize of output 16 [2022-01-17 23:55:16,441 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:55:16,899 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:55:16,953 INFO L387 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 [2022-01-17 23:55:16,981 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:55:16,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:55:22,342 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_967 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_967) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false [2022-01-17 23:55:22,365 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:55:22,365 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-01-17 23:55:22,371 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:55:22,371 INFO L387 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 34 treesize of output 37 [2022-01-17 23:55:22,374 INFO L387 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 11 treesize of output 9 [2022-01-17 23:55:22,545 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-17 23:55:22,546 INFO L387 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 13 treesize of output 12 [2022-01-17 23:55:22,554 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:55:22,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052200426] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:55:22,554 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:55:22,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64 [2022-01-17 23:55:22,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171482718] [2022-01-17 23:55:22,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:55:22,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-01-17 23:55:22,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:55:22,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-01-17 23:55:22,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=353, Invalid=3554, Unknown=3, NotChecked=122, Total=4032 [2022-01-17 23:55:22,556 INFO L87 Difference]: Start difference. First operand 2581 states and 5144 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:55:25,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:55:25,850 INFO L93 Difference]: Finished difference Result 4446 states and 8836 transitions. [2022-01-17 23:55:25,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-17 23:55:25,851 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:55:25,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:55:25,857 INFO L225 Difference]: With dead ends: 4446 [2022-01-17 23:55:25,857 INFO L226 Difference]: Without dead ends: 4446 [2022-01-17 23:55:25,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 178 SyntacticMatches, 11 SemanticMatches, 106 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3334 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=1941, Invalid=9402, Unknown=3, NotChecked=210, Total=11556 [2022-01-17 23:55:25,858 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 3221 mSDsluCounter, 6352 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3221 SdHoareTripleChecker+Valid, 6652 SdHoareTripleChecker+Invalid, 2708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 970 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:55:25,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3221 Valid, 6652 Invalid, 2708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1617 Invalid, 0 Unknown, 970 Unchecked, 0.8s Time] [2022-01-17 23:55:25,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4446 states. [2022-01-17 23:55:25,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4446 to 2577. [2022-01-17 23:55:25,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2577 states, 2575 states have (on average 1.9945631067961165) internal successors, (5136), 2576 states have internal predecessors, (5136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:55:25,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2577 states to 2577 states and 5136 transitions. [2022-01-17 23:55:25,896 INFO L78 Accepts]: Start accepts. Automaton has 2577 states and 5136 transitions. Word has length 106 [2022-01-17 23:55:25,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:55:25,896 INFO L470 AbstractCegarLoop]: Abstraction has 2577 states and 5136 transitions. [2022-01-17 23:55:25,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:55:25,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2577 states and 5136 transitions. [2022-01-17 23:55:25,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:55:25,898 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:55:25,899 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:55:25,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-17 23:55:26,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:55:26,104 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:55:26,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:55:26,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1735581496, now seen corresponding path program 8 times [2022-01-17 23:55:26,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:55:26,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264191946] [2022-01-17 23:55:26,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:55:26,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:55:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:55:26,518 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:55:26,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:55:26,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264191946] [2022-01-17 23:55:26,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264191946] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:55:26,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475285507] [2022-01-17 23:55:26,519 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-17 23:55:26,519 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:55:26,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:55:26,524 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:55:26,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-17 23:55:26,638 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-17 23:55:26,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:55:26,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core [2022-01-17 23:55:26,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:55:26,768 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-17 23:55:26,769 INFO L387 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 11 [2022-01-17 23:55:26,897 INFO L387 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 [2022-01-17 23:55:26,994 INFO L387 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 14 treesize of output 16 [2022-01-17 23:55:27,491 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:55:27,897 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:55:27,959 INFO L387 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 [2022-01-17 23:55:27,991 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:55:27,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:55:41,932 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1018 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1018) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false [2022-01-17 23:55:41,995 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:55:41,995 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-01-17 23:55:42,014 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:55:42,015 INFO L387 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 34 treesize of output 37 [2022-01-17 23:55:42,021 INFO L387 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 11 treesize of output 9 [2022-01-17 23:55:42,333 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-17 23:55:42,333 INFO L387 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 13 treesize of output 12 [2022-01-17 23:55:42,343 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:55:42,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475285507] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:55:42,344 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:55:42,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64 [2022-01-17 23:55:42,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917188820] [2022-01-17 23:55:42,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:55:42,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-01-17 23:55:42,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:55:42,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-01-17 23:55:42,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=3541, Unknown=6, NotChecked=122, Total=4032 [2022-01-17 23:55:42,346 INFO L87 Difference]: Start difference. First operand 2577 states and 5136 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:55:49,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:55:49,538 INFO L93 Difference]: Finished difference Result 7327 states and 14654 transitions. [2022-01-17 23:55:49,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-17 23:55:49,538 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:55:49,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:55:49,548 INFO L225 Difference]: With dead ends: 7327 [2022-01-17 23:55:49,548 INFO L226 Difference]: Without dead ends: 7327 [2022-01-17 23:55:49,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 185 SyntacticMatches, 19 SemanticMatches, 124 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5363 ImplicationChecksByTransitivity, 19.8s TimeCoverageRelationStatistics Valid=2174, Invalid=13324, Unknown=6, NotChecked=246, Total=15750 [2022-01-17 23:55:49,549 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 2652 mSDsluCounter, 7018 mSDsCounter, 0 mSdLazyCounter, 1558 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2652 SdHoareTripleChecker+Valid, 7367 SdHoareTripleChecker+Invalid, 3142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1503 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:55:49,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2652 Valid, 7367 Invalid, 3142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1558 Invalid, 0 Unknown, 1503 Unchecked, 1.6s Time] [2022-01-17 23:55:49,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7327 states. [2022-01-17 23:55:49,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7327 to 2580. [2022-01-17 23:55:49,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2580 states, 2578 states have (on average 1.9945694336695112) internal successors, (5142), 2579 states have internal predecessors, (5142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:55:49,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2580 states to 2580 states and 5142 transitions. [2022-01-17 23:55:49,595 INFO L78 Accepts]: Start accepts. Automaton has 2580 states and 5142 transitions. Word has length 106 [2022-01-17 23:55:49,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:55:49,595 INFO L470 AbstractCegarLoop]: Abstraction has 2580 states and 5142 transitions. [2022-01-17 23:55:49,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:55:49,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2580 states and 5142 transitions. [2022-01-17 23:55:49,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:55:49,597 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:55:49,597 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:55:49,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-17 23:55:49,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2022-01-17 23:55:49,797 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:55:49,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:55:49,798 INFO L85 PathProgramCache]: Analyzing trace with hash 444086522, now seen corresponding path program 9 times [2022-01-17 23:55:49,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:55:49,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887524090] [2022-01-17 23:55:49,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:55:49,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:55:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:55:50,581 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:55:50,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:55:50,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887524090] [2022-01-17 23:55:50,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887524090] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:55:50,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420058122] [2022-01-17 23:55:50,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-17 23:55:50,582 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:55:50,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:55:50,584 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:55:50,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-17 23:55:50,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-17 23:55:50,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:55:50,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core [2022-01-17 23:55:50,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:55:50,967 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-17 23:55:50,967 INFO L387 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 11 [2022-01-17 23:55:51,211 INFO L387 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 [2022-01-17 23:55:51,376 INFO L387 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 14 treesize of output 16 [2022-01-17 23:55:52,282 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:55:53,132 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:55:53,249 INFO L387 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 [2022-01-17 23:55:53,313 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:55:53,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:56:01,313 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1069 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1069) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false [2022-01-17 23:56:01,362 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:56:01,362 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-01-17 23:56:01,376 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:56:01,377 INFO L387 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 34 treesize of output 37 [2022-01-17 23:56:01,382 INFO L387 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 11 treesize of output 9 [2022-01-17 23:56:01,777 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-17 23:56:01,778 INFO L387 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 13 treesize of output 12 [2022-01-17 23:56:01,788 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:56:01,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420058122] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:56:01,788 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:56:01,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64 [2022-01-17 23:56:01,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190868632] [2022-01-17 23:56:01,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:56:01,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-01-17 23:56:01,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:56:01,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-01-17 23:56:01,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=348, Invalid=3559, Unknown=3, NotChecked=122, Total=4032 [2022-01-17 23:56:01,790 INFO L87 Difference]: Start difference. First operand 2580 states and 5142 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:56:14,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:56:14,993 INFO L93 Difference]: Finished difference Result 6230 states and 12435 transitions. [2022-01-17 23:56:14,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-01-17 23:56:14,993 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:56:14,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:56:15,003 INFO L225 Difference]: With dead ends: 6230 [2022-01-17 23:56:15,004 INFO L226 Difference]: Without dead ends: 6230 [2022-01-17 23:56:15,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 183 SyntacticMatches, 21 SemanticMatches, 145 ConstructedPredicates, 1 IntricatePredicates, 2 DeprecatedPredicates, 6875 ImplicationChecksByTransitivity, 19.8s TimeCoverageRelationStatistics Valid=4008, Invalid=17163, Unknown=3, NotChecked=288, Total=21462 [2022-01-17 23:56:15,006 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 4191 mSDsluCounter, 7488 mSDsCounter, 0 mSdLazyCounter, 1941 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4191 SdHoareTripleChecker+Valid, 7829 SdHoareTripleChecker+Invalid, 4047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 1941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1939 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:56:15,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4191 Valid, 7829 Invalid, 4047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 1941 Invalid, 0 Unknown, 1939 Unchecked, 2.4s Time] [2022-01-17 23:56:15,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6230 states. [2022-01-17 23:56:15,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6230 to 2573. [2022-01-17 23:56:15,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 2571 states have (on average 1.9945546479968883) internal successors, (5128), 2572 states have internal predecessors, (5128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:56:15,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 5128 transitions. [2022-01-17 23:56:15,059 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 5128 transitions. Word has length 106 [2022-01-17 23:56:15,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:56:15,059 INFO L470 AbstractCegarLoop]: Abstraction has 2573 states and 5128 transitions. [2022-01-17 23:56:15,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:56:15,059 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 5128 transitions. [2022-01-17 23:56:15,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:56:15,061 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:56:15,062 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:56:15,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-17 23:56:15,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:56:15,275 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:56:15,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:56:15,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1988436372, now seen corresponding path program 10 times [2022-01-17 23:56:15,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:56:15,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14554380] [2022-01-17 23:56:15,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:56:15,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:56:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:56:16,218 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:56:16,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:56:16,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14554380] [2022-01-17 23:56:16,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14554380] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:56:16,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113204295] [2022-01-17 23:56:16,219 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-17 23:56:16,219 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:56:16,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:56:16,220 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:56:16,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-17 23:56:16,341 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-17 23:56:16,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:56:16,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 58 conjunts are in the unsatisfiable core [2022-01-17 23:56:16,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:56:16,606 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-17 23:56:16,606 INFO L387 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 11 [2022-01-17 23:56:16,911 INFO L387 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 [2022-01-17 23:56:17,118 INFO L387 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 14 treesize of output 16 [2022-01-17 23:56:18,102 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:56:18,960 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:56:19,213 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:56:19,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:56:40,422 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1120 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1120) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false [2022-01-17 23:56:40,469 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:56:40,469 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-01-17 23:56:40,484 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:56:40,484 INFO L387 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 34 treesize of output 37 [2022-01-17 23:56:40,490 INFO L387 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 11 treesize of output 9 [2022-01-17 23:56:40,879 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-17 23:56:40,879 INFO L387 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 13 treesize of output 12 [2022-01-17 23:56:40,892 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:56:40,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113204295] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:56:40,893 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:56:40,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64 [2022-01-17 23:56:40,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939451779] [2022-01-17 23:56:40,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:56:40,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-01-17 23:56:40,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:56:40,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-01-17 23:56:40,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=391, Invalid=3514, Unknown=5, NotChecked=122, Total=4032 [2022-01-17 23:56:40,895 INFO L87 Difference]: Start difference. First operand 2573 states and 5128 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:57:19,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:57:19,675 INFO L93 Difference]: Finished difference Result 15296 states and 30680 transitions. [2022-01-17 23:57:19,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-01-17 23:57:19,676 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:57:19,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:57:19,697 INFO L225 Difference]: With dead ends: 15296 [2022-01-17 23:57:19,697 INFO L226 Difference]: Without dead ends: 15296 [2022-01-17 23:57:19,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 189 SyntacticMatches, 6 SemanticMatches, 168 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 9749 ImplicationChecksByTransitivity, 57.8s TimeCoverageRelationStatistics Valid=3634, Invalid=24752, Unknown=10, NotChecked=334, Total=28730 [2022-01-17 23:57:19,701 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 3308 mSDsluCounter, 13959 mSDsCounter, 0 mSdLazyCounter, 2812 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3308 SdHoareTripleChecker+Valid, 14375 SdHoareTripleChecker+Invalid, 6357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3496 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:57:19,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3308 Valid, 14375 Invalid, 6357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2812 Invalid, 0 Unknown, 3496 Unchecked, 3.2s Time] [2022-01-17 23:57:19,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15296 states. [2022-01-17 23:57:19,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15296 to 2599. [2022-01-17 23:57:19,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2599 states, 2597 states have (on average 1.993068925683481) internal successors, (5176), 2598 states have internal predecessors, (5176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:57:19,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 5176 transitions. [2022-01-17 23:57:19,779 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 5176 transitions. Word has length 106 [2022-01-17 23:57:19,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:57:19,780 INFO L470 AbstractCegarLoop]: Abstraction has 2599 states and 5176 transitions. [2022-01-17 23:57:19,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:57:19,780 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 5176 transitions. [2022-01-17 23:57:19,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:57:19,782 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:57:19,782 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:57:19,798 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-01-17 23:57:19,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2022-01-17 23:57:19,983 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:57:19,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:57:19,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1681124850, now seen corresponding path program 11 times [2022-01-17 23:57:19,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:57:19,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081247668] [2022-01-17 23:57:19,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:57:19,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:57:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:57:20,932 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:57:20,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:57:20,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081247668] [2022-01-17 23:57:20,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081247668] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:57:20,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136223156] [2022-01-17 23:57:20,932 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-17 23:57:20,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:57:20,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:57:20,933 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:57:20,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-17 23:57:21,033 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-17 23:57:21,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:57:21,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core [2022-01-17 23:57:21,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:57:21,358 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-17 23:57:21,359 INFO L387 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 11 [2022-01-17 23:57:21,610 INFO L387 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 [2022-01-17 23:57:21,765 INFO L387 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 14 treesize of output 16 [2022-01-17 23:57:22,779 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:57:23,583 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:57:23,721 INFO L387 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 [2022-01-17 23:57:23,823 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:57:23,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:57:38,489 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1171 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1171) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false [2022-01-17 23:57:38,566 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:57:38,566 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-01-17 23:57:38,579 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:57:38,579 INFO L387 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 34 treesize of output 37 [2022-01-17 23:57:38,585 INFO L387 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 11 treesize of output 9 [2022-01-17 23:57:39,127 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-17 23:57:39,127 INFO L387 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 13 treesize of output 12 [2022-01-17 23:57:39,138 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:57:39,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136223156] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:57:39,138 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:57:39,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64 [2022-01-17 23:57:39,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890915824] [2022-01-17 23:57:39,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:57:39,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-01-17 23:57:39,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:57:39,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-01-17 23:57:39,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=359, Invalid=3546, Unknown=5, NotChecked=122, Total=4032 [2022-01-17 23:57:39,140 INFO L87 Difference]: Start difference. First operand 2599 states and 5176 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:57:53,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:57:53,857 INFO L93 Difference]: Finished difference Result 6773 states and 13528 transitions. [2022-01-17 23:57:53,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-01-17 23:57:53,859 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:57:53,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:57:53,872 INFO L225 Difference]: With dead ends: 6773 [2022-01-17 23:57:53,872 INFO L226 Difference]: Without dead ends: 6773 [2022-01-17 23:57:53,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 181 SyntacticMatches, 37 SemanticMatches, 125 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 6116 ImplicationChecksByTransitivity, 27.6s TimeCoverageRelationStatistics Valid=2169, Invalid=13579, Unknown=6, NotChecked=248, Total=16002 [2022-01-17 23:57:53,875 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 2266 mSDsluCounter, 10359 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2266 SdHoareTripleChecker+Valid, 10775 SdHoareTripleChecker+Invalid, 3613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1408 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:57:53,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2266 Valid, 10775 Invalid, 3613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2155 Invalid, 0 Unknown, 1408 Unchecked, 3.1s Time] [2022-01-17 23:57:53,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6773 states. [2022-01-17 23:57:53,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6773 to 2602. [2022-01-17 23:57:53,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2602 states, 2600 states have (on average 1.993076923076923) internal successors, (5182), 2601 states have internal predecessors, (5182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:57:53,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2602 states to 2602 states and 5182 transitions. [2022-01-17 23:57:53,965 INFO L78 Accepts]: Start accepts. Automaton has 2602 states and 5182 transitions. Word has length 106 [2022-01-17 23:57:53,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:57:53,965 INFO L470 AbstractCegarLoop]: Abstraction has 2602 states and 5182 transitions. [2022-01-17 23:57:53,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:57:53,966 INFO L276 IsEmpty]: Start isEmpty. Operand 2602 states and 5182 transitions. [2022-01-17 23:57:53,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:57:53,967 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:57:53,968 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:57:53,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-17 23:57:54,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2022-01-17 23:57:54,184 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:57:54,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:57:54,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1322347472, now seen corresponding path program 12 times [2022-01-17 23:57:54,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:57:54,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313808108] [2022-01-17 23:57:54,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:57:54,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:57:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:57:55,562 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:57:55,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:57:55,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313808108] [2022-01-17 23:57:55,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313808108] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:57:55,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532856728] [2022-01-17 23:57:55,563 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-17 23:57:55,563 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:57:55,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:57:55,564 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:57:55,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-01-17 23:57:55,671 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-01-17 23:57:55,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:57:55,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core [2022-01-17 23:57:55,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:57:56,002 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-17 23:57:56,002 INFO L387 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 11 [2022-01-17 23:57:56,437 INFO L387 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 [2022-01-17 23:57:56,729 INFO L387 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 14 treesize of output 16 [2022-01-17 23:57:57,814 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:57:59,012 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:57:59,154 INFO L387 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 [2022-01-17 23:57:59,234 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:57:59,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:58:06,685 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1222 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1222) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false [2022-01-17 23:58:06,739 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:58:06,739 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-01-17 23:58:06,764 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:58:06,764 INFO L387 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 34 treesize of output 37 [2022-01-17 23:58:06,771 INFO L387 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 11 treesize of output 9 [2022-01-17 23:58:07,215 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-17 23:58:07,216 INFO L387 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 13 treesize of output 12 [2022-01-17 23:58:07,226 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:58:07,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532856728] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:58:07,227 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:58:07,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64 [2022-01-17 23:58:07,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758636627] [2022-01-17 23:58:07,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:58:07,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-01-17 23:58:07,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:58:07,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-01-17 23:58:07,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=352, Invalid=3555, Unknown=3, NotChecked=122, Total=4032 [2022-01-17 23:58:07,228 INFO L87 Difference]: Start difference. First operand 2602 states and 5182 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:58:19,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:58:19,147 INFO L93 Difference]: Finished difference Result 5834 states and 11662 transitions. [2022-01-17 23:58:19,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-01-17 23:58:19,148 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:58:19,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:58:19,155 INFO L225 Difference]: With dead ends: 5834 [2022-01-17 23:58:19,155 INFO L226 Difference]: Without dead ends: 5834 [2022-01-17 23:58:19,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 186 SyntacticMatches, 4 SemanticMatches, 115 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3779 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=1769, Invalid=11571, Unknown=4, NotChecked=228, Total=13572 [2022-01-17 23:58:19,157 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 1897 mSDsluCounter, 10193 mSDsCounter, 0 mSdLazyCounter, 2316 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1897 SdHoareTripleChecker+Valid, 10577 SdHoareTripleChecker+Invalid, 3905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1571 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:58:19,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1897 Valid, 10577 Invalid, 3905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2316 Invalid, 0 Unknown, 1571 Unchecked, 3.2s Time] [2022-01-17 23:58:19,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5834 states. [2022-01-17 23:58:19,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5834 to 2585. [2022-01-17 23:58:19,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2585 states, 2583 states have (on average 1.9930313588850175) internal successors, (5148), 2584 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:58:19,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2585 states to 2585 states and 5148 transitions. [2022-01-17 23:58:19,205 INFO L78 Accepts]: Start accepts. Automaton has 2585 states and 5148 transitions. Word has length 106 [2022-01-17 23:58:19,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:58:19,205 INFO L470 AbstractCegarLoop]: Abstraction has 2585 states and 5148 transitions. [2022-01-17 23:58:19,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:58:19,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2585 states and 5148 transitions. [2022-01-17 23:58:19,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:58:19,207 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:58:19,207 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:58:19,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-01-17 23:58:19,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2022-01-17 23:58:19,410 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:58:19,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:58:19,410 INFO L85 PathProgramCache]: Analyzing trace with hash -525088272, now seen corresponding path program 13 times [2022-01-17 23:58:19,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:58:19,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35459439] [2022-01-17 23:58:19,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:58:19,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:58:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:58:20,809 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:58:20,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:58:20,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35459439] [2022-01-17 23:58:20,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35459439] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:58:20,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080683708] [2022-01-17 23:58:20,810 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-17 23:58:20,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:58:20,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:58:20,811 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:58:20,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-01-17 23:58:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:58:20,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core [2022-01-17 23:58:20,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:58:21,224 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-17 23:58:21,224 INFO L387 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 11 [2022-01-17 23:58:21,535 INFO L387 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 [2022-01-17 23:58:21,816 INFO L387 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 14 treesize of output 16 [2022-01-17 23:58:23,049 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:58:24,020 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-17 23:58:24,192 INFO L387 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 [2022-01-17 23:58:24,294 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:58:24,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:58:45,451 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1273 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1273) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false [2022-01-17 23:58:45,502 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:58:45,502 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-01-17 23:58:45,518 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-17 23:58:45,518 INFO L387 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 34 treesize of output 37 [2022-01-17 23:58:45,525 INFO L387 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 11 treesize of output 9 [2022-01-17 23:58:45,979 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-17 23:58:45,980 INFO L387 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 13 treesize of output 12 [2022-01-17 23:58:45,991 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:58:45,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080683708] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:58:45,991 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:58:45,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64 [2022-01-17 23:58:45,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801519587] [2022-01-17 23:58:45,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:58:45,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-01-17 23:58:45,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:58:45,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-01-17 23:58:45,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=376, Invalid=3525, Unknown=9, NotChecked=122, Total=4032 [2022-01-17 23:58:45,993 INFO L87 Difference]: Start difference. First operand 2585 states and 5148 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:59:56,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:59:56,729 INFO L93 Difference]: Finished difference Result 15288 states and 30642 transitions. [2022-01-17 23:59:56,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-01-17 23:59:56,730 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-17 23:59:56,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:59:56,749 INFO L225 Difference]: With dead ends: 15288 [2022-01-17 23:59:56,749 INFO L226 Difference]: Without dead ends: 15288 [2022-01-17 23:59:56,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 187 SyntacticMatches, 7 SemanticMatches, 164 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 9216 ImplicationChecksByTransitivity, 89.8s TimeCoverageRelationStatistics Valid=3498, Invalid=23545, Unknown=21, NotChecked=326, Total=27390 [2022-01-17 23:59:56,751 INFO L933 BasicCegarLoop]: 477 mSDtfsCounter, 3390 mSDsluCounter, 14525 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3390 SdHoareTripleChecker+Valid, 15000 SdHoareTripleChecker+Invalid, 6416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3863 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:59:56,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3390 Valid, 15000 Invalid, 6416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2471 Invalid, 0 Unknown, 3863 Unchecked, 3.4s Time] [2022-01-17 23:59:56,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15288 states. [2022-01-17 23:59:56,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15288 to 2612. [2022-01-17 23:59:56,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2612 states, 2610 states have (on average 1.993103448275862) internal successors, (5202), 2611 states have internal predecessors, (5202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:59:56,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2612 states to 2612 states and 5202 transitions. [2022-01-17 23:59:56,822 INFO L78 Accepts]: Start accepts. Automaton has 2612 states and 5202 transitions. Word has length 106 [2022-01-17 23:59:56,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:59:56,822 INFO L470 AbstractCegarLoop]: Abstraction has 2612 states and 5202 transitions. [2022-01-17 23:59:56,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:59:56,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2612 states and 5202 transitions. [2022-01-17 23:59:56,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-17 23:59:56,824 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:59:56,824 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:59:56,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-01-17 23:59:57,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2022-01-17 23:59:57,030 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-17 23:59:57,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:59:57,030 INFO L85 PathProgramCache]: Analyzing trace with hash -373288528, now seen corresponding path program 14 times [2022-01-17 23:59:57,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:59:57,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642692391] [2022-01-17 23:59:57,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:59:57,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:59:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:59:58,399 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:59:58,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:59:58,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642692391] [2022-01-17 23:59:58,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642692391] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:59:58,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283527526] [2022-01-17 23:59:58,399 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-17 23:59:58,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:59:58,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:59:58,401 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:59:58,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-01-17 23:59:58,514 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-17 23:59:58,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:59:58,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core [2022-01-17 23:59:58,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:59:58,901 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-17 23:59:58,901 INFO L387 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 11 [2022-01-17 23:59:59,251 INFO L387 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 [2022-01-17 23:59:59,473 INFO L387 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 14 treesize of output 16 [2022-01-18 00:00:00,785 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-18 00:00:02,032 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-18 00:00:02,197 INFO L387 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 [2022-01-18 00:00:02,306 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:00:02,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 00:00:25,809 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1324 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1324) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false [2022-01-18 00:00:25,879 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 00:00:25,879 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-01-18 00:00:25,909 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 00:00:25,909 INFO L387 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 34 treesize of output 37 [2022-01-18 00:00:25,918 INFO L387 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 11 treesize of output 9 [2022-01-18 00:00:26,657 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-18 00:00:26,658 INFO L387 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 13 treesize of output 12 [2022-01-18 00:00:26,670 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:00:26,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283527526] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 00:00:26,671 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 00:00:26,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64 [2022-01-18 00:00:26,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312973628] [2022-01-18 00:00:26,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 00:00:26,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-01-18 00:00:26,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:00:26,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-01-18 00:00:26,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=3561, Unknown=7, NotChecked=122, Total=4032 [2022-01-18 00:00:26,672 INFO L87 Difference]: Start difference. First operand 2612 states and 5202 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:00:33,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:00:33,260 INFO L93 Difference]: Finished difference Result 5081 states and 10132 transitions. [2022-01-18 00:00:33,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 00:00:33,260 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-18 00:00:33,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:00:33,267 INFO L225 Difference]: With dead ends: 5081 [2022-01-18 00:00:33,267 INFO L226 Difference]: Without dead ends: 5081 [2022-01-18 00:00:33,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 176 SyntacticMatches, 8 SemanticMatches, 84 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2259 ImplicationChecksByTransitivity, 30.2s TimeCoverageRelationStatistics Valid=789, Invalid=6348, Unknown=7, NotChecked=166, Total=7310 [2022-01-18 00:00:33,268 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 1231 mSDsluCounter, 6686 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 7016 SdHoareTripleChecker+Invalid, 1982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1048 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:00:33,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1231 Valid, 7016 Invalid, 1982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 898 Invalid, 0 Unknown, 1048 Unchecked, 2.1s Time] [2022-01-18 00:00:33,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5081 states. [2022-01-18 00:00:33,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5081 to 2803. [2022-01-18 00:00:33,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2803 states, 2801 states have (on average 1.9892895394501964) internal successors, (5572), 2802 states have internal predecessors, (5572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:00:33,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 5572 transitions. [2022-01-18 00:00:33,322 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 5572 transitions. Word has length 106 [2022-01-18 00:00:33,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:00:33,322 INFO L470 AbstractCegarLoop]: Abstraction has 2803 states and 5572 transitions. [2022-01-18 00:00:33,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:00:33,323 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 5572 transitions. [2022-01-18 00:00:33,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-18 00:00:33,324 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:00:33,324 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:00:33,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-01-18 00:00:33,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:00:33,525 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 00:00:33,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:00:33,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1664783502, now seen corresponding path program 15 times [2022-01-18 00:00:33,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:00:33,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910951451] [2022-01-18 00:00:33,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:00:33,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:00:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:00:35,848 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:00:35,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:00:35,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910951451] [2022-01-18 00:00:35,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910951451] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 00:00:35,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032355747] [2022-01-18 00:00:35,850 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 00:00:35,850 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:00:35,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 00:00:35,851 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 00:00:35,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-01-18 00:00:35,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 00:00:35,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 00:00:35,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core [2022-01-18 00:00:35,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 00:00:36,570 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 00:00:36,571 INFO L387 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 11 [2022-01-18 00:00:37,191 INFO L387 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 [2022-01-18 00:00:37,497 INFO L387 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 14 treesize of output 16 [2022-01-18 00:00:39,283 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-18 00:00:40,854 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-18 00:00:41,083 INFO L387 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 [2022-01-18 00:00:41,221 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:00:41,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 00:00:50,407 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1375 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1375) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false [2022-01-18 00:00:50,477 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 00:00:50,478 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-01-18 00:00:50,503 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 00:00:50,503 INFO L387 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 34 treesize of output 37 [2022-01-18 00:00:50,510 INFO L387 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 11 treesize of output 9 [2022-01-18 00:00:51,265 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-18 00:00:51,266 INFO L387 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 13 treesize of output 12 [2022-01-18 00:00:51,278 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:00:51,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032355747] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 00:00:51,279 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 00:00:51,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64 [2022-01-18 00:00:51,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359028526] [2022-01-18 00:00:51,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 00:00:51,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-01-18 00:00:51,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:00:51,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-01-18 00:00:51,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=3572, Unknown=2, NotChecked=122, Total=4032 [2022-01-18 00:00:51,280 INFO L87 Difference]: Start difference. First operand 2803 states and 5572 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:01:11,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:01:11,813 INFO L93 Difference]: Finished difference Result 7736 states and 15421 transitions. [2022-01-18 00:01:11,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-01-18 00:01:11,814 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-18 00:01:11,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:01:11,824 INFO L225 Difference]: With dead ends: 7736 [2022-01-18 00:01:11,824 INFO L226 Difference]: Without dead ends: 7736 [2022-01-18 00:01:11,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 185 SyntacticMatches, 12 SemanticMatches, 133 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 5688 ImplicationChecksByTransitivity, 28.2s TimeCoverageRelationStatistics Valid=2147, Invalid=15677, Unknown=2, NotChecked=264, Total=18090 [2022-01-18 00:01:11,825 INFO L933 BasicCegarLoop]: 522 mSDtfsCounter, 2386 mSDsluCounter, 14998 mSDsCounter, 0 mSdLazyCounter, 2083 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2386 SdHoareTripleChecker+Valid, 15519 SdHoareTripleChecker+Invalid, 5167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3012 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:01:11,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2386 Valid, 15519 Invalid, 5167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2083 Invalid, 0 Unknown, 3012 Unchecked, 5.1s Time] [2022-01-18 00:01:11,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7736 states. [2022-01-18 00:01:11,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7736 to 2982. [2022-01-18 00:01:11,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2982 states, 2980 states have (on average 1.9875838926174496) internal successors, (5923), 2981 states have internal predecessors, (5923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:01:11,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2982 states to 2982 states and 5923 transitions. [2022-01-18 00:01:11,876 INFO L78 Accepts]: Start accepts. Automaton has 2982 states and 5923 transitions. Word has length 106 [2022-01-18 00:01:11,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:01:11,876 INFO L470 AbstractCegarLoop]: Abstraction has 2982 states and 5923 transitions. [2022-01-18 00:01:11,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:01:11,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2982 states and 5923 transitions. [2022-01-18 00:01:11,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-18 00:01:11,878 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:01:11,879 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:01:11,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-01-18 00:01:12,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:01:12,080 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 00:01:12,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:01:12,080 INFO L85 PathProgramCache]: Analyzing trace with hash 432684052, now seen corresponding path program 16 times [2022-01-18 00:01:12,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:01:12,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451231251] [2022-01-18 00:01:12,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:01:12,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:01:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:01:14,380 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:01:14,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:01:14,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451231251] [2022-01-18 00:01:14,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451231251] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 00:01:14,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894452116] [2022-01-18 00:01:14,381 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 00:01:14,381 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:01:14,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 00:01:14,382 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 00:01:14,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-01-18 00:01:14,519 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 00:01:14,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 00:01:14,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 58 conjunts are in the unsatisfiable core [2022-01-18 00:01:14,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 00:01:15,047 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 00:01:15,047 INFO L387 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 11 [2022-01-18 00:01:15,609 INFO L387 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 [2022-01-18 00:01:15,956 INFO L387 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 14 treesize of output 16 [2022-01-18 00:01:18,123 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-18 00:01:19,769 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-18 00:01:20,221 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:01:20,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 00:01:49,292 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1426 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1426) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false [2022-01-18 00:01:49,370 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 00:01:49,370 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-01-18 00:01:49,400 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 00:01:49,401 INFO L387 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 34 treesize of output 37 [2022-01-18 00:01:49,410 INFO L387 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 11 treesize of output 9 [2022-01-18 00:01:50,066 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-18 00:01:50,066 INFO L387 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 13 treesize of output 12 [2022-01-18 00:01:50,079 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:01:50,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894452116] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 00:01:50,080 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 00:01:50,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64 [2022-01-18 00:01:50,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795013661] [2022-01-18 00:01:50,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 00:01:50,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-01-18 00:01:50,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:01:50,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-01-18 00:01:50,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=409, Invalid=3495, Unknown=6, NotChecked=122, Total=4032 [2022-01-18 00:01:50,081 INFO L87 Difference]: Start difference. First operand 2982 states and 5923 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:02:08,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:02:08,148 INFO L93 Difference]: Finished difference Result 8245 states and 16400 transitions. [2022-01-18 00:02:08,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 00:02:08,148 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-18 00:02:08,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:02:08,157 INFO L225 Difference]: With dead ends: 8245 [2022-01-18 00:02:08,157 INFO L226 Difference]: Without dead ends: 8245 [2022-01-18 00:02:08,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 185 SyntacticMatches, 10 SemanticMatches, 123 ConstructedPredicates, 1 IntricatePredicates, 2 DeprecatedPredicates, 5014 ImplicationChecksByTransitivity, 45.9s TimeCoverageRelationStatistics Valid=2066, Invalid=13184, Unknown=6, NotChecked=244, Total=15500 [2022-01-18 00:02:08,158 INFO L933 BasicCegarLoop]: 534 mSDtfsCounter, 2219 mSDsluCounter, 13249 mSDsCounter, 0 mSdLazyCounter, 2231 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2219 SdHoareTripleChecker+Valid, 13777 SdHoareTripleChecker+Invalid, 4348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2080 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-01-18 00:02:08,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2219 Valid, 13777 Invalid, 4348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2231 Invalid, 0 Unknown, 2080 Unchecked, 4.9s Time] [2022-01-18 00:02:08,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8245 states. [2022-01-18 00:02:08,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8245 to 3173. [2022-01-18 00:02:08,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3173 states, 3171 states have (on average 1.9820245979186377) internal successors, (6285), 3172 states have internal predecessors, (6285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:02:08,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3173 states to 3173 states and 6285 transitions. [2022-01-18 00:02:08,202 INFO L78 Accepts]: Start accepts. Automaton has 3173 states and 6285 transitions. Word has length 106 [2022-01-18 00:02:08,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:02:08,202 INFO L470 AbstractCegarLoop]: Abstraction has 3173 states and 6285 transitions. [2022-01-18 00:02:08,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:02:08,202 INFO L276 IsEmpty]: Start isEmpty. Operand 3173 states and 6285 transitions. [2022-01-18 00:02:08,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-18 00:02:08,205 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:02:08,205 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:02:08,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-01-18 00:02:08,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:02:08,420 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 00:02:08,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:02:08,421 INFO L85 PathProgramCache]: Analyzing trace with hash 849782298, now seen corresponding path program 17 times [2022-01-18 00:02:08,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:02:08,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152122571] [2022-01-18 00:02:08,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:02:08,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:02:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:02:10,530 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:02:10,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:02:10,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152122571] [2022-01-18 00:02:10,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152122571] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 00:02:10,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787078069] [2022-01-18 00:02:10,531 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 00:02:10,531 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:02:10,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 00:02:10,532 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 00:02:10,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-01-18 00:02:10,651 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 00:02:10,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 00:02:10,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core [2022-01-18 00:02:10,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 00:02:11,115 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 00:02:11,116 INFO L387 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 11 [2022-01-18 00:02:11,611 INFO L387 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 [2022-01-18 00:02:11,932 INFO L387 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 14 treesize of output 16 [2022-01-18 00:02:13,624 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-18 00:02:15,002 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-18 00:02:15,219 INFO L387 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 [2022-01-18 00:02:15,345 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:02:15,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 00:02:40,057 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1477 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1477) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false [2022-01-18 00:02:40,135 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 00:02:40,136 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-01-18 00:02:40,170 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 00:02:40,171 INFO L387 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 34 treesize of output 37 [2022-01-18 00:02:40,180 INFO L387 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 11 treesize of output 9 [2022-01-18 00:02:40,938 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-18 00:02:40,939 INFO L387 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 13 treesize of output 12 [2022-01-18 00:02:40,952 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:02:40,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787078069] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 00:02:40,952 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 00:02:40,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64 [2022-01-18 00:02:40,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144877136] [2022-01-18 00:02:40,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 00:02:40,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-01-18 00:02:40,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:02:40,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-01-18 00:02:40,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=3535, Unknown=7, NotChecked=122, Total=4032 [2022-01-18 00:02:40,954 INFO L87 Difference]: Start difference. First operand 3173 states and 6285 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:03:06,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:03:06,529 INFO L93 Difference]: Finished difference Result 8868 states and 17681 transitions. [2022-01-18 00:03:06,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-01-18 00:03:06,530 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-18 00:03:06,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:03:06,541 INFO L225 Difference]: With dead ends: 8868 [2022-01-18 00:03:06,541 INFO L226 Difference]: Without dead ends: 8868 [2022-01-18 00:03:06,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 185 SyntacticMatches, 27 SemanticMatches, 149 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7647 ImplicationChecksByTransitivity, 47.6s TimeCoverageRelationStatistics Valid=4005, Invalid=18342, Unknown=7, NotChecked=296, Total=22650 [2022-01-18 00:03:06,544 INFO L933 BasicCegarLoop]: 546 mSDtfsCounter, 3977 mSDsluCounter, 7883 mSDsCounter, 0 mSdLazyCounter, 2197 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3977 SdHoareTripleChecker+Valid, 8429 SdHoareTripleChecker+Invalid, 4143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 2197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1798 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-01-18 00:03:06,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3977 Valid, 8429 Invalid, 4143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 2197 Invalid, 0 Unknown, 1798 Unchecked, 5.5s Time] [2022-01-18 00:03:06,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8868 states. [2022-01-18 00:03:06,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8868 to 3249. [2022-01-18 00:03:06,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3249 states, 3247 states have (on average 1.9824453341546042) internal successors, (6437), 3248 states have internal predecessors, (6437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:03:06,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3249 states to 3249 states and 6437 transitions. [2022-01-18 00:03:06,605 INFO L78 Accepts]: Start accepts. Automaton has 3249 states and 6437 transitions. Word has length 106 [2022-01-18 00:03:06,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:03:06,605 INFO L470 AbstractCegarLoop]: Abstraction has 3249 states and 6437 transitions. [2022-01-18 00:03:06,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:03:06,605 INFO L276 IsEmpty]: Start isEmpty. Operand 3249 states and 6437 transitions. [2022-01-18 00:03:06,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-18 00:03:06,607 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:03:06,607 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:03:06,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-01-18 00:03:06,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:03:06,808 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 00:03:06,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:03:06,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1001582042, now seen corresponding path program 18 times [2022-01-18 00:03:06,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:03:06,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220341201] [2022-01-18 00:03:06,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:03:06,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:03:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:03:09,138 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:03:09,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:03:09,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220341201] [2022-01-18 00:03:09,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220341201] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 00:03:09,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334384164] [2022-01-18 00:03:09,139 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 00:03:09,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:03:09,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 00:03:09,140 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 00:03:09,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-01-18 00:03:09,264 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-01-18 00:03:09,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 00:03:09,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core [2022-01-18 00:03:09,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 00:03:09,793 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 00:03:09,794 INFO L387 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 11 [2022-01-18 00:03:10,425 INFO L387 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 [2022-01-18 00:03:10,836 INFO L387 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 14 treesize of output 16 [2022-01-18 00:03:13,007 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-18 00:03:14,697 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-18 00:03:14,970 INFO L387 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 [2022-01-18 00:03:15,144 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:03:15,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 00:03:24,734 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1528 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1528) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false [2022-01-18 00:03:24,807 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 00:03:24,807 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-01-18 00:03:24,833 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 00:03:24,833 INFO L387 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 34 treesize of output 37 [2022-01-18 00:03:24,841 INFO L387 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 11 treesize of output 9 [2022-01-18 00:03:25,702 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-18 00:03:25,703 INFO L387 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 13 treesize of output 12 [2022-01-18 00:03:25,715 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:03:25,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334384164] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 00:03:25,716 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 00:03:25,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64 [2022-01-18 00:03:25,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121769023] [2022-01-18 00:03:25,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 00:03:25,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-01-18 00:03:25,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:03:25,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-01-18 00:03:25,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=340, Invalid=3567, Unknown=3, NotChecked=122, Total=4032 [2022-01-18 00:03:25,718 INFO L87 Difference]: Start difference. First operand 3249 states and 6437 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:04:54,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:04:54,490 INFO L93 Difference]: Finished difference Result 13236 states and 26466 transitions. [2022-01-18 00:04:54,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-01-18 00:04:54,491 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-18 00:04:54,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:04:54,507 INFO L225 Difference]: With dead ends: 13236 [2022-01-18 00:04:54,507 INFO L226 Difference]: Without dead ends: 13236 [2022-01-18 00:04:54,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 192 SyntacticMatches, 47 SemanticMatches, 171 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 12472 ImplicationChecksByTransitivity, 96.7s TimeCoverageRelationStatistics Valid=4769, Invalid=24625, Unknown=22, NotChecked=340, Total=29756 [2022-01-18 00:04:54,509 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 5954 mSDsluCounter, 10093 mSDsCounter, 0 mSdLazyCounter, 2122 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5954 SdHoareTripleChecker+Valid, 10498 SdHoareTripleChecker+Invalid, 5062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 2122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2755 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-01-18 00:04:54,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5954 Valid, 10498 Invalid, 5062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 2122 Invalid, 0 Unknown, 2755 Unchecked, 5.2s Time] [2022-01-18 00:04:54,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13236 states. [2022-01-18 00:04:54,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13236 to 3338. [2022-01-18 00:04:54,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3338 states, 3336 states have (on average 1.980515587529976) internal successors, (6607), 3337 states have internal predecessors, (6607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:04:54,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3338 states to 3338 states and 6607 transitions. [2022-01-18 00:04:54,575 INFO L78 Accepts]: Start accepts. Automaton has 3338 states and 6607 transitions. Word has length 106 [2022-01-18 00:04:54,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:04:54,575 INFO L470 AbstractCegarLoop]: Abstraction has 3338 states and 6607 transitions. [2022-01-18 00:04:54,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:04:54,575 INFO L276 IsEmpty]: Start isEmpty. Operand 3338 states and 6607 transitions. [2022-01-18 00:04:54,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-18 00:04:54,577 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:04:54,578 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:04:54,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-01-18 00:04:54,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:04:54,778 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 00:04:54,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:04:54,779 INFO L85 PathProgramCache]: Analyzing trace with hash -289912932, now seen corresponding path program 19 times [2022-01-18 00:04:54,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:04:54,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492360456] [2022-01-18 00:04:54,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:04:54,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:04:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:04:56,703 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:04:56,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:04:56,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492360456] [2022-01-18 00:04:56,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492360456] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 00:04:56,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689515812] [2022-01-18 00:04:56,704 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 00:04:56,704 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:04:56,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 00:04:56,705 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 00:04:56,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-01-18 00:04:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:04:56,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core [2022-01-18 00:04:56,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 00:04:57,371 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 00:04:57,371 INFO L387 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 11 [2022-01-18 00:04:57,929 INFO L387 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 [2022-01-18 00:04:58,227 INFO L387 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 14 treesize of output 16 [2022-01-18 00:05:00,021 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-18 00:05:01,513 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-18 00:05:01,779 INFO L387 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 [2022-01-18 00:05:01,959 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:05:01,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 00:05:06,900 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1579 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1579) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false [2022-01-18 00:05:06,968 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 00:05:06,968 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-01-18 00:05:06,992 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 00:05:06,992 INFO L387 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 34 treesize of output 37 [2022-01-18 00:05:07,000 INFO L387 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 11 treesize of output 9 [2022-01-18 00:05:07,780 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-18 00:05:07,780 INFO L387 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 13 treesize of output 12 [2022-01-18 00:05:07,793 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:05:07,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689515812] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 00:05:07,793 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 00:05:07,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64 [2022-01-18 00:05:07,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627600010] [2022-01-18 00:05:07,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 00:05:07,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-01-18 00:05:07,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:05:07,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-01-18 00:05:07,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=3573, Unknown=1, NotChecked=122, Total=4032 [2022-01-18 00:05:07,795 INFO L87 Difference]: Start difference. First operand 3338 states and 6607 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:05:48,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:05:48,827 INFO L93 Difference]: Finished difference Result 7159 states and 14231 transitions. [2022-01-18 00:05:48,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-01-18 00:05:48,828 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-18 00:05:48,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:05:48,837 INFO L225 Difference]: With dead ends: 7159 [2022-01-18 00:05:48,838 INFO L226 Difference]: Without dead ends: 7159 [2022-01-18 00:05:48,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 192 SyntacticMatches, 29 SemanticMatches, 147 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7583 ImplicationChecksByTransitivity, 46.0s TimeCoverageRelationStatistics Valid=3646, Invalid=18106, Unknown=8, NotChecked=292, Total=22052 [2022-01-18 00:05:48,840 INFO L933 BasicCegarLoop]: 512 mSDtfsCounter, 3494 mSDsluCounter, 8306 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3494 SdHoareTripleChecker+Valid, 8818 SdHoareTripleChecker+Invalid, 3937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2536 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-01-18 00:05:48,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3494 Valid, 8818 Invalid, 3937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1289 Invalid, 0 Unknown, 2536 Unchecked, 3.2s Time] [2022-01-18 00:05:48,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7159 states. [2022-01-18 00:05:48,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7159 to 3512. [2022-01-18 00:05:48,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3512 states, 3510 states have (on average 1.9817663817663818) internal successors, (6956), 3511 states have internal predecessors, (6956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:05:48,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3512 states to 3512 states and 6956 transitions. [2022-01-18 00:05:48,902 INFO L78 Accepts]: Start accepts. Automaton has 3512 states and 6956 transitions. Word has length 106 [2022-01-18 00:05:48,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:05:48,903 INFO L470 AbstractCegarLoop]: Abstraction has 3512 states and 6956 transitions. [2022-01-18 00:05:48,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:05:48,903 INFO L276 IsEmpty]: Start isEmpty. Operand 3512 states and 6956 transitions. [2022-01-18 00:05:48,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-18 00:05:48,905 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:05:48,906 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:05:48,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-01-18 00:05:49,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:05:49,106 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 00:05:49,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:05:49,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1150805599, now seen corresponding path program 1 times [2022-01-18 00:05:49,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:05:49,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640793898] [2022-01-18 00:05:49,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:05:49,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:05:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:05:49,846 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:05:49,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:05:49,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640793898] [2022-01-18 00:05:49,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640793898] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 00:05:49,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415934668] [2022-01-18 00:05:49,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:05:49,847 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:05:49,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 00:05:49,849 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 00:05:49,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-01-18 00:05:49,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:05:49,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 34 conjunts are in the unsatisfiable core [2022-01-18 00:05:49,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 00:05:51,999 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-18 00:05:52,906 INFO L387 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 24 treesize of output 12 [2022-01-18 00:05:53,143 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:05:53,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 00:05:54,316 INFO L353 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2022-01-18 00:05:54,317 INFO L387 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 44 treesize of output 32 [2022-01-18 00:05:54,493 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:05:54,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415934668] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 00:05:54,494 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 00:05:54,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 16] total 36 [2022-01-18 00:05:54,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007273666] [2022-01-18 00:05:54,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 00:05:54,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-01-18 00:05:54,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:05:54,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-01-18 00:05:54,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1110, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 00:05:54,495 INFO L87 Difference]: Start difference. First operand 3512 states and 6956 transitions. Second operand has 36 states, 36 states have (on average 6.805555555555555) internal successors, (245), 36 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:06:00,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:06:00,270 INFO L93 Difference]: Finished difference Result 5738 states and 11420 transitions. [2022-01-18 00:06:00,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 00:06:00,271 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 6.805555555555555) internal successors, (245), 36 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2022-01-18 00:06:00,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:06:00,276 INFO L225 Difference]: With dead ends: 5738 [2022-01-18 00:06:00,276 INFO L226 Difference]: Without dead ends: 4623 [2022-01-18 00:06:00,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 240 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 847 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=690, Invalid=2850, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 00:06:00,277 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 2050 mSDsluCounter, 7177 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2050 SdHoareTripleChecker+Valid, 7611 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 228 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-18 00:06:00,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2050 Valid, 7611 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1006 Invalid, 0 Unknown, 228 Unchecked, 2.5s Time] [2022-01-18 00:06:00,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4623 states. [2022-01-18 00:06:00,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4623 to 3382. [2022-01-18 00:06:00,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3382 states, 3380 states have (on average 1.96301775147929) internal successors, (6635), 3381 states have internal predecessors, (6635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:06:00,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 6635 transitions. [2022-01-18 00:06:00,324 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 6635 transitions. Word has length 116 [2022-01-18 00:06:00,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:06:00,324 INFO L470 AbstractCegarLoop]: Abstraction has 3382 states and 6635 transitions. [2022-01-18 00:06:00,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 6.805555555555555) internal successors, (245), 36 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:06:00,324 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 6635 transitions. [2022-01-18 00:06:00,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 00:06:00,327 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:06:00,327 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:06:00,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-01-18 00:06:00,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2022-01-18 00:06:00,529 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 00:06:00,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:06:00,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1299269377, now seen corresponding path program 20 times [2022-01-18 00:06:00,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:06:00,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952645354] [2022-01-18 00:06:00,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:06:00,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:06:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:06:02,814 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:06:02,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:06:02,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952645354] [2022-01-18 00:06:02,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952645354] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 00:06:02,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423724974] [2022-01-18 00:06:02,814 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 00:06:02,814 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:06:02,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 00:06:02,816 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 00:06:02,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-01-18 00:06:02,934 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 00:06:02,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 00:06:02,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 56 conjunts are in the unsatisfiable core [2022-01-18 00:06:02,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 00:06:03,448 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 00:06:03,449 INFO L387 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 11 [2022-01-18 00:06:04,045 INFO L387 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 [2022-01-18 00:06:04,379 INFO L387 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 14 treesize of output 16 [2022-01-18 00:06:06,368 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-18 00:06:07,973 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-18 00:06:08,432 INFO L387 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 [2022-01-18 00:06:08,594 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:06:08,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 00:06:30,301 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1676 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1676) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false [2022-01-18 00:06:30,365 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 00:06:30,365 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-01-18 00:06:30,388 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 00:06:30,388 INFO L387 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 34 treesize of output 37 [2022-01-18 00:06:30,395 INFO L387 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 11 treesize of output 9 [2022-01-18 00:06:31,133 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-18 00:06:31,133 INFO L387 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 13 treesize of output 12 [2022-01-18 00:06:31,145 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:06:31,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423724974] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 00:06:31,145 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 00:06:31,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64 [2022-01-18 00:06:31,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173329217] [2022-01-18 00:06:31,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 00:06:31,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-01-18 00:06:31,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:06:31,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-01-18 00:06:31,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=3561, Unknown=7, NotChecked=122, Total=4032 [2022-01-18 00:06:31,147 INFO L87 Difference]: Start difference. First operand 3382 states and 6635 transitions. Second operand has 64 states, 64 states have (on average 4.734375) internal successors, (303), 64 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:06:47,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:06:47,678 INFO L93 Difference]: Finished difference Result 8257 states and 16359 transitions. [2022-01-18 00:06:47,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-01-18 00:06:47,678 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.734375) internal successors, (303), 64 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 00:06:47,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:06:47,688 INFO L225 Difference]: With dead ends: 8257 [2022-01-18 00:06:47,688 INFO L226 Difference]: Without dead ends: 8187 [2022-01-18 00:06:47,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 206 SyntacticMatches, 7 SemanticMatches, 120 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4361 ImplicationChecksByTransitivity, 36.1s TimeCoverageRelationStatistics Valid=1685, Invalid=12832, Unknown=7, NotChecked=238, Total=14762 [2022-01-18 00:06:47,689 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 1839 mSDsluCounter, 12115 mSDsCounter, 0 mSdLazyCounter, 2622 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1839 SdHoareTripleChecker+Valid, 12539 SdHoareTripleChecker+Invalid, 4802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2145 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:06:47,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1839 Valid, 12539 Invalid, 4802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2622 Invalid, 0 Unknown, 2145 Unchecked, 5.8s Time] [2022-01-18 00:06:47,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8187 states. [2022-01-18 00:06:47,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8187 to 3103. [2022-01-18 00:06:47,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3103 states, 3101 states have (on average 1.9709771041599484) internal successors, (6112), 3102 states have internal predecessors, (6112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:06:47,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 6112 transitions. [2022-01-18 00:06:47,742 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 6112 transitions. Word has length 117 [2022-01-18 00:06:47,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:06:47,742 INFO L470 AbstractCegarLoop]: Abstraction has 3103 states and 6112 transitions. [2022-01-18 00:06:47,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.734375) internal successors, (303), 64 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:06:47,742 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 6112 transitions. [2022-01-18 00:06:47,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 00:06:47,744 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:06:47,744 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:06:47,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-01-18 00:06:47,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2022-01-18 00:06:47,945 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 00:06:47,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:06:47,945 INFO L85 PathProgramCache]: Analyzing trace with hash 2097498146, now seen corresponding path program 1 times [2022-01-18 00:06:47,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:06:47,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344289906] [2022-01-18 00:06:47,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:06:47,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:06:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:06:50,062 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:06:50,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:06:50,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344289906] [2022-01-18 00:06:50,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344289906] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 00:06:50,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598037545] [2022-01-18 00:06:50,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:06:50,062 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:06:50,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 00:06:50,064 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 00:06:50,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-01-18 00:06:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:06:50,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 56 conjunts are in the unsatisfiable core [2022-01-18 00:06:50,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 00:06:50,767 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 00:06:50,767 INFO L387 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 11 [2022-01-18 00:06:51,221 INFO L387 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 [2022-01-18 00:06:51,535 INFO L387 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 14 treesize of output 16 [2022-01-18 00:06:53,480 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-01-18 00:06:55,009 INFO L387 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 0 case distinctions, treesize of input 28 treesize of output 16 Received shutdown request... [2022-01-18 00:06:55,053 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-01-18 00:06:55,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-01-18 00:06:55,072 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 00:06:55,100 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 00:06:55,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:06:55,254 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 118 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 46 known predicates. [2022-01-18 00:06:55,255 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-01-18 00:06:55,255 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-01-18 00:06:55,255 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-01-18 00:06:55,256 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-01-18 00:06:55,258 INFO L732 BasicCegarLoop]: Path program histogram: [20, 18, 17, 7, 1, 1, 1, 1, 1, 1] [2022-01-18 00:06:55,261 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 00:06:55,261 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 00:06:55,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 12:06:55 BasicIcfg [2022-01-18 00:06:55,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 00:06:55,263 INFO L158 Benchmark]: Toolchain (without parser) took 810062.92ms. Allocated memory was 352.3MB in the beginning and 1.5GB in the end (delta: 1.1GB). Free memory was 297.2MB in the beginning and 1.0GB in the end (delta: -712.4MB). Peak memory consumption was 404.7MB. Max. memory is 16.0GB. [2022-01-18 00:06:55,263 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 352.3MB. Free memory is still 315.6MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 00:06:55,263 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.09ms. Allocated memory is still 352.3MB. Free memory was 297.1MB in the beginning and 315.8MB in the end (delta: -18.7MB). Peak memory consumption was 14.2MB. Max. memory is 16.0GB. [2022-01-18 00:06:55,263 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.32ms. Allocated memory is still 352.3MB. Free memory was 315.8MB in the beginning and 313.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 00:06:55,263 INFO L158 Benchmark]: Boogie Preprocessor took 25.40ms. Allocated memory is still 352.3MB. Free memory was 313.7MB in the beginning and 311.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 00:06:55,263 INFO L158 Benchmark]: RCFGBuilder took 379.99ms. Allocated memory is still 352.3MB. Free memory was 311.6MB in the beginning and 294.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2022-01-18 00:06:55,263 INFO L158 Benchmark]: TraceAbstraction took 809205.98ms. Allocated memory was 352.3MB in the beginning and 1.5GB in the end (delta: 1.1GB). Free memory was 294.8MB in the beginning and 1.0GB in the end (delta: -714.7MB). Peak memory consumption was 405.1MB. Max. memory is 16.0GB. [2022-01-18 00:06:55,263 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 352.3MB. Free memory is still 315.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 410.09ms. Allocated memory is still 352.3MB. Free memory was 297.1MB in the beginning and 315.8MB in the end (delta: -18.7MB). Peak memory consumption was 14.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 37.32ms. Allocated memory is still 352.3MB. Free memory was 315.8MB in the beginning and 313.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.40ms. Allocated memory is still 352.3MB. Free memory was 313.7MB in the beginning and 311.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 379.99ms. Allocated memory is still 352.3MB. Free memory was 311.6MB in the beginning and 294.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 809205.98ms. Allocated memory was 352.3MB in the beginning and 1.5GB in the end (delta: 1.1GB). Free memory was 294.8MB in the beginning and 1.0GB in the end (delta: -714.7MB). Peak memory consumption was 405.1MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 118 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 46 known predicates. - TimeoutResultAtElement [Line: 748]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 118 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 46 known predicates. - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 118 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 46 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 190 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 809.0s, OverallIterations: 68, TraceHistogramMax: 3, PathProgramHistogramMax: 20, EmptinessCheckTime: 0.2s, AutomataDifference: 462.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 125047 SdHoareTripleChecker+Valid, 74.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 125047 mSDsluCounter, 335298 SdHoareTripleChecker+Invalid, 68.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 34916 IncrementalHoareTripleChecker+Unchecked, 308957 mSDsCounter, 3843 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83276 IncrementalHoareTripleChecker+Invalid, 122035 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3843 mSolverCounterUnsat, 26512 mSDtfsCounter, 83276 mSolverCounterSat, 0.9s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9101 GetRequests, 4181 SyntacticMatches, 281 SemanticMatches, 4639 ConstructedPredicates, 19 IntricatePredicates, 6 DeprecatedPredicates, 151470 ImplicationChecksByTransitivity, 635.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9370occurred in iteration=19, InterpolantAutomatonStates: 3207, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.8s AutomataMinimizationTime, 67 MinimizatonAttempts, 485024 StatesRemovedByMinimization, 66 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 323.1s InterpolantComputationTime, 8005 NumberOfCodeBlocks, 8005 NumberOfCodeBlocksAsserted, 104 NumberOfCheckSat, 9990 ConstructedInterpolants, 887 QuantifiedInterpolants, 106796 SizeOfPredicates, 506 NumberOfNonLiveVariables, 5243 ConjunctsInSsa, 1108 ConjunctsInUnsatCore, 108 InterpolantComputations, 47 PerfectInterpolantSequences, 211/945 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown